What's the Best Testosterone Booster in 2024?

Many products claim they can stem the tide of testosterone loss and restore optimal T levels. We’ll help you choose.

Last updated: Jan 16th, 2024
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Best Testosterone Booster Guide

Photo by Innerbody Research

Testosterone deficiency is a serious condition. It can cause weight gain, depression, loss of bone density, and reduced libido, among other worrying symptoms. But even if testosterone levels are within a normal range, men still lose about 1% of this vital hormone every year once they hit 40. That may not qualify as a clinical deficiency, but men can nonetheless experience some of those same symptoms.

Testosterone boosters seek to remedy the situation by supplying your body with nutrients that can cause you to produce more testosterone. The only downside is that dozens of companies are peddling "miracle" supplements, and they can drown out the safer, more effective options on the market. Our team has researched the top supplements in the field to determine which testosterone booster is likely the best for you.

If you need a quick answer, here's a look at our top recommendations:

Summary of recommendations

Our Top Choice

TestoPrime is our top choice for testosterone enhancement. Superior ingredients, a proven track record, and lifetime guarantee set them apart from the rest.

TestoPrime uses 12 clinically studied ingredients in their formula. It’s designed to increase muscle strength, build endurance, reduce stress, and leave you feeling overall energized.

Table of Contents

In this Review

Why you should trust us

At Innerbody Research, we extensively research each health service we review, including testing products and services ourselves. That diligence extends to the world of testosterone boosters, where we've dedicated hundreds of hours in research and exploring the experience as customers.

All told, our team read more than 75 research papers covering testosterone and the symptoms and treatment of testosterone deficiency. We scrutinized research on the most common ingredients found in nutritional supplements aimed at raising testosterone levels. We spoke with a certified strength and conditioning specialist and a registered dietician to verify our findings and generate deeper insights into the field. And like all health-related content on this website, this guide was thoroughly vetted by one or more members of our Medical Review Board for accuracy.

As with all of our review and guide content, we'll continue to stay on top of the latest research to keep our testosterone-boosting guidance up-to-date. Over the past two decades, Innerbody Research has helped tens of millions of readers make more informed decisions to live healthier lifestyles.

How we evaluated testosterone boosters

There were a few key areas we found to be most important from a practical, scientific standpoint but also from the perspective of a potential customer while evaluating testosterone boosters. While they may not work for everyone, men with clinically low testosterone levels or specific nutritional deficiencies may see a boost in total or free testosterone levels from a testosterone-boosting supplement. That could result in increased energy levels and enhanced libido.

The trick is to get the right testosterone booster for your needs. If you're low on vitamin D and that's suppressing your testosterone, a supplement with 100 ingredients but no vitamin D might prove useless.

This is why we consider effectiveness to be the most critical factor, and it's why we heavily scrutinize included ingredients and doses. Close behind that comes safety. Hormonal imbalances can wreak havoc on the body, and there could be negative consequences if a supplement is too good at elevating testosterone levels. Of course, supplemental testosterone boosters such as these aren’t likely to raise levels to dangerous heights, but if you already have elevated testosterone levels, there could be a risk of increased aggression, acne, and even mania, according to one study.

After those two criteria, we turn to more company-specific considerations (namely cost and customer service). Our cost estimation takes a few factors into account beyond merely the price, and our team has used these companies' websites to order products, testing the customer support infrastructure and shipping logistics.

Ultimately, TestoPrime squeaks ahead of most competitors thanks to a streamlined blend of ingredients that perform well in small-scale studies, most of which it delivers in clinically relevant doses. Let's take a closer look at each category below to better understand the playing field.


Winners: TestoPrime and Roman clomiphene

There are a lot of shared ingredients among testosterone boosters on the market, but the quantity and combination of these ingredients vary from product to product. When we evaluate a given testosterone booster, we look for a few specific markers that can support claims of efficacy:

Consistent clinical performance

It's rare that nutritional supplements contain ingredients whose performance in clinical studies is 100% consistent. When it comes to supplement ingredients, there are too many small-scale studies with statistically irrelevant results that get blown out of proportion. That's why we look for ingredients with as much consistency as possible throughout research studies.

Clinically relevant doses

Too many supplement manufacturers lean on one or two studies to support their claims, regardless of the fact that those studies often use doses many times the size of those found in these supplements. We always prefer that companies come as close to a clinically relevant dose as possible, so long as it doesn't sacrifice safety.

Thoughtful ingredient combinations

If a company doesn't use clinically relevant doses, it had better employ a combination of ingredients that can make up the difference. For example, one ingredient might boost testosterone production, while another can reduce its binding to sex hormone binding globulin (SHBG). They would work together to elevate T levels and keep them high. A supplement with nothing but the former might increase total testosterone but not in a way that would improve the symptoms of low T.

TestoPrime presents a reasonably sized combination of ingredients that may boost total or free testosterone, and its doses consistently beat out the competition. And while one of TestoPrime's most abundant ingredients (D-aspartic acid) suffers from a lot of contradictory and inconclusive research in humans, its supporting players — ashwagandha, zinc, and vitamin D — can step in should the D-aspartic acid not work for you.

While Roman's Testosterone Support supplement does a nice job balancing safety and efficacy, it doesn't quite pack the same punch as its competitors. But Roman is the only company in our guide that can also offer prescription clomiphene to men who are clinically diagnosed with low testosterone. This prescription testosterone booster is more reliably effective than supplemental treatment. It's not as effective as testosterone replacement therapy, but it's closer to that treatment than supplements could ever be, and it's a lot safer than TRT.

You could consider Nugenix Ultimate and Testogen strong runners-up in this category, especially if you find that D-aspartic acid seems to make a difference in your case. And if you want to throw everything but the kitchen sink at your low T, combining Testogen capsules with Testogen drops gets you an added handful of complimentary ingredients. However, those two brands fall a little short in ingredient quantities as you move down their ingredient lists.


Winner: Roman Testosterone Support

If safety is your primary concern, you may want to seek a testosterone booster with fewer ingredients, especially when those ingredients are associated with fewer side effects and offered at doses that should help minimize adverse reactions. This is where the available clinical research is crucial. Some testosterone boosters combine well-researched ingredients with botanicals that have plenty of anecdotal history but little scientific rigor to back it up.

Roman's Testosterone Support contains just six ingredients, with ashwagandha as its centerpiece. The known side effects for its components are rare and mild, and the company produces the pills in the U.S. The fact that it makes one of the few testosterone boosters to contain copper also speaks to Roman’s regard for safety; zinc supplementation has been shown to deplete copper levels, so Roman includes a small copper dose to offset this risk.


Winners: TestoPrime and Roman

When we evaluate the cost of a testosterone booster, we consider its price and any potential avenues for savings, including bulk and subscription discounts. We also look at money-back guarantees and return policies that can affect your investment.

The winning position for this category was split between TestoPrime and Roman. Each company offers a very different model:

  • TestoPrime builds savings into its bulk purchasing options but lacks any subscription program.
  • Roman offers its products on a subscription-only basis for an outstanding price.

With the TestoPrime three-month supply, the company gives you an additional two months for free. That works out to five months of treatment at $36/month. The downside there is that you have to spend $179.99 up-front. Roman's system provides you with its nutritional supplement on a subscription basis for $35/month billed monthly or $29/month billed quarterly. It also offers a deep discount on your first order, bringing the cost down to $10 for your first month. That makes Roman's offering the most economical choice to try if you're new to these supplements. If it works and you want to stick with it, great. If you want to try a slightly stronger testosterone booster with a few more ingredients, TestoPrime is worth a look after that.

Customer service

Winner: Roman

Roman is more than just a testosterone company. It's grown into a telehealth juggernaut over the years, offering everything from hair loss and ED treatments to mental health services. That expansion coincided with growth and refinement in customer service, with a sleek, intuitive website and a friendly, responsive phone staff.

Roman also recently added testosterone testing to its available services, making them a one-stop-shop for men who want to know if their testosterone levels are below normal and want to treat it in the same place. There are no fees associated with pausing or canceling your subscription, and its shipping is extraordinarily fast. When we ordered Roman's Testosterone Support, it was on our doorstep in less than 48 hours.

Who needs a testosterone booster?

Men produce less testosterone as they age, and men over 40 lose testosterone at a greater rate than men under 40 — a phenomenon sometimes called male menopause. Men can experience symptoms as early as 30, but it's mostly men over 40 who will notice the changes. Lower than normal testosterone levels can occur no matter your age, however.

We spoke to Reda Elmardi, a certified strength and conditioning specialist, registered dietician, and owner of The Gym Goat, about issues low testosterone could present. Low sex drive was at the top of the list. "Low sex drive can be caused by many things, but the most common cause is low testosterone levels," he told us. "If your body has low testosterone levels, then you may not feel like having sex at all. This could lead to erectile dysfunction."

There are other warning signs to look for:

  • Erectile dysfunction
  • Depression
  • Brain fog and memory issues
  • Fatigue
  • Moodiness
  • Irritability
  • Weakness
  • Hair loss
  • Increased body fat

If you notice any of these symptoms, there’s a chance you may have low testosterone levels. But you shouldn't jump right into a testosterone booster regimen just because those symptoms are present. Most of these symptoms are quite common across various conditions, from lupus to iron deficiency. You should always talk to your physician before beginning any supplement and, in this case, see if they can order testing for your testosterone levels; at-home testing is also a viable option if you don’t have a physician or access to a primary care provider.

At-home testosterone tests

If you know for a fact that you have low T, you can confidently seek out a supplement or replacement therapy to remedy the situation. But for those who are wondering about their testosterone, at-home tests make it tremendously easy to measure your testosterone levels. You can see our favorite at-home testosterone tests in our comprehensive guide, many of which you can get with a discount as an Innerbody reader.

Some of these tests check for multiple markers that can give you a clear picture of your hormonal health. The LetsGetChecked Male Hormone Test may be the best as it includes an analysis of sex hormone binding globulin (SHBG) levels.

What's the best testosterone booster?

In our opinion, the best testosterone booster currently on the market is TestoPrime. This supplement offers generous quantities of some of the best-researched ingredients to address low testosterone levels. It edged out Testogen due to its favorable pricing, increased zinc quantity, and the presence of ashwagandha, and it beat out Roman for the quantity and variety of ingredients included.

Take a look at this chart to see how the top brands compare. We chose these six ingredients based on the quality and quantity of available research supporting their efficacy in raising testosterone levels. And “Best price” reflects the lowest amount you’ll pay with a company’s largest bulk order or subscription platform.

Best price
D-Aspartic acid
Vitamin D3
Roman Testosterone Support
Testogen capsules
Nugenix Ultimate
Nugenix Total T Maxx
Testogen drops
Test Boost Max

How testosterone boosters work

Testosterone boosters work on different parts of your endocrine system, depending on their ingredients. In most cases, it’ll either stimulate the production of testosterone directly or stimulate the production of something like luteinizing hormone (LH) from the pituitary gland, which will signal the testes to make testosterone.

There are also testosterone-boosting ingredients that don't increase the amount of testosterone in the body but decrease the volume of sex hormone binding globulin (SBHG). SBHG binds to testosterone, reducing the amount of free testosterone that your muscles and other critical systems can use. By suppressing SBHG, you can effectively increase your free testosterone from your regular testosterone supply.

Critical ingredients for testosterone boosters

Understanding how a given product can help raise your testosterone levels starts with understanding its ingredients. In addition to the five components included in our chart above, there are others that are likely helpful. Many have a fair amount of credible research behind them and could combine to make a robust product. But credible research isn't necessarily statistically or clinically significant, and too many of these studies utilize participant sets that are too small to correlate with the general population.

Here's a breakdown of our top ingredients to look for in a testosterone booster:

D-Aspartic acid

Research has shown that D-aspartic acid can increase luteinizing hormone (LH) levels in men and women. In men, this hormone signals the testes to produce testosterone. However, this study was too small to be conclusive, and other studies show a drop-off in testosterone levels with high D-aspartic acid doses.


Ashwagandha has been the subject of several extensive studies, including a crossover study that showed a 15% increase in testosterone levels after several weeks of administration. Other studies show ashwagandha to have significant mood-enhancing and anti-anxiety effects.


Zinc offers many benefits to your health, but studies support the notion that it suppresses sex hormone binding globulin (SHBG). That allows more of the testosterone you produce to be free, which can help to reduce fatigue and gain lean muscle mass.


Boron functions as another tool to enhance your free testosterone. It acts similarly to zinc in this regard but through a slightly different mechanism, so combining the ingredients may have a more pronounced effect.

Vitamin D3

There seems to be a direct link between vitamin D levels and testosterone levels. Men diagnosed with low T often have a vitamin D deficiency and vice versa. Studies repeatedly show that increasing vitamin D intake can increase testosterone.


Fenugreek is one of the oldest herbs associated with sexual health. Studies connect it with libido, metabolism, and energy levels in participants. It's often included in supplements at doses comparable to those shown to be effective in studies, but its effects are more apparent in men who lack regular resistance training.


Most of the research into ginseng's potential as a testosterone booster takes place in rats and mice. Results are compelling, but more human trials are needed. For now, there are more important ingredients to look for in a testosterone booster.


Maca is often looked at as a natural treatment for erectile dysfunction, though studies suggest its successes have little to do with testosterone impacts. Still, for men seeking testosterone boosters for sexual performance, it may be an important ingredient to consider.

Black pepper extract

This is an interesting ingredient because there's nothing directly associated with testosterone. But black pepper is common in many supplements thanks to its ability to increase your nutrient absorption, so your body can get more benefit from whatever you consume.

Free testosterone vs total testosterone

One confusing bit of information in the testosterone supplement sphere is the difference between free and total testosterone. Some research will point toward an ingredient’s ability to boost total testosterone, but this doesn’t necessarily mean it will yield any of the benefits you’d want from supplements.

The essential difference between free and total testosterone is that total testosterone measures both free testosterone and testosterone that’s bound to proteins like sex hormone binding globulins (SHBG). Your body can’t use the testosterone in that second camp to help improve exercise performance or burn fat. Only free testosterone truly matters, and it typically makes up just 2-5% of your total testosterone. A measure of total testosterone includes free testosterone, so a study showing that an ingredient boosts total testosterone without explicitly showing an increase in free testosterone doesn’t necessarily undercut that ingredient’s potential. But it does demand further research.

Ingredients like zinc and boron have been shown to increase free testosterone.

Are testosterone boosters safe?

Most testosterone boosters should be completely safe for the majority of users. However, because some ingredients can affect blood flow and influence the activity of the testes and other parts of the endocrine system, we highly recommend speaking to your doctor before starting any new regimen to increase testosterone.

As a registered dietician, Elmardi doesn't seem too worried. "The safety of testosterone boosters has been questioned due to the fact that some of them have been linked to side effects like liver damage and heart problems. However, these risks are rare and typically only occur if you take too much of the supplement. If you use a safe dosage, you should not experience any negative side effects."

That said, some testosterone-boosting ingredients have been associated with specific adverse effects. For example, some studies suggest that ashwagandha can help treat hypothyroidism (low levels of certain thyroid hormones). That's led some researchers to fear that it may be dangerous for anyone on thyroid medications or those with even mild hyperthyroidism.

One study looking at the chronic, high-dose treatment of D-aspartic acid in frogs suggests a danger to certain organs (namely the kidneys, heart, brain, liver, and testes) in the form of oxidative stress. However, these concentrations were far higher than those shown to be most effective in elevating testosterone levels, lending credence to Elmardi’s opinion.

You’ll want to watch for some additional side effects if only to give yourself peace of mind should you experience one of them — you'll know where the problem originated. Side effects of the most commonly used ingredients in testosterone boosters include:

  • Headache
  • Irritability
  • Stomach discomfort
  • Nausea
  • Vomiting
  • Diarrhea

These types of side effects typically resolve on their own as your body acclimates to new supplement ingredients, but if any of them linger past a week or two, you should stop taking the product and talk to your doctor.

By comparison, testosterone replacement therapies introduce significantly more risk than a supplement, especially gels that can leave a residue and transfer to women and children. There are reported instances of early-onset puberty and unexpected hair growth in children unknowingly exposed to testosterone-boosting gels. But if you exercise caution and use thorough cleaning practices, you and your loved ones should be safe.


Best overall


  • High doses of effective ingredients
  • Lifetime guarantee
  • Made in FDA-approved facilities
  • Third-party tested
  • Free shipping on all orders


  • Doesn't contain maca or boron
  • Single-bottle orders are on the pricey side

Photo by Innerbody Research

TestoPrime is our top recommendation for testosterone booster supplements, thanks to its high zinc and ashwagandha concentrations. Its total ingredient profile is commendable for its price point. It also has one of the larger doses of D-aspartic acid among its competitors, but without more concrete science around the substance, it's not the determining factor in our recommendation here. Instead, TestoPrime’s zinc, ashwagandha, and vitamin D content are more indicative of its potential.

We appreciate that TestoPrime lists 18 clinical studies at the bottom of its main page. This helps shed light on the safety and efficacy of its ingredients, but it's noteworthy that so few of the studies cited were conducted on humans (a reminder that there is much room to improve the research into these substances). It's also safe to assume that the company would choose the studies that show the greatest degrees of both efficacy and safety, regardless of the study population or other parameters. After all, most of its visitors aren't researchers or statisticians.

TestoPrime recently added a chat feature to its website, which is relatively fast and connects you to a human on the other end. We had some trouble getting them to answer some of our more nuanced questions, but they were mostly very helpful. Only Performer 8 — our top male enhancement product for testosterone — has a similar chat feature. This doesn't come as too big a surprise; both TestoPrime and Performer 8 share a parent company (Wolfson Brands).

Here are the ingredients that make up TestoPrime:

  • D-Aspartic acid: 2,000mg
  • Panax Ginseng: 40mg
  • Ashwagandha extract: 668mg
  • Fenugreek: 800mg
  • Green tea extract: 4,000mg
  • Pomegranate extract: 360mg
  • Vitamin D: 26.68mcg
  • Zinc: 40mg
  • Vitamin B6: 5.6mg
  • Vitamin B5: 8mg
  • Garlic extract: 1,200mg
  • Black pepper extract: 6.68mg

TestoPrime pricing

TestoPrime is available in three different purchasing tiers, none of which offer subscription options. When you get close to running out, you'll have to remember to order more (which is somewhat disappointing from a convenience angle). Here's how the pricing breaks down:

  • 1-month supply: $59.99
  • 2-month supply: $119.99 plus a third bottle for free
  • 3-month supply: $179.99 plus three free additional bottles

Shipping is free at every level, and the two-month and three-month supplies come with e-books about nutrition and exercise.

TestoPrime is incredibly confident in its product — so much so that it offers a lifetime guarantee. This won't be necessary for most men, as you'll know within a month or two whether the testosterone booster is working. TestoPrime will return your entire investment, less shipping and handling, if it doesn't work for you. Other companies also offer compelling guarantees, by the way, including lifetime guarantees from Test Boost Max and Performer 8.

TestoPrime vs Testogen

If you compare them side-by-side, you'll see that TestoPrime and Testogen have a lot of similarities. They both offer high doses of well-researched testosterone-boosting ingredients. They even cost the same if you buy just one bottle from either company.

However, there are some crucial differences in the ingredient lists that lead us to favor TestoPrime; it includes more of the better-researched testosterone-boosting ingredients than most others. You could theoretically make up for that difference — and even get a better overall effect — by taking both Testogen's capsules and drops, but that combination gets expensive.

Here's a handy chart that breaks it down:

TestoPrimeTestogen CapsulesTestogen Drops
D-Aspartic acid
Vitamin D3
Green tea extract
Pomegranate extract
Vitamin B6
Vitamin B5
Vitamin K1
Garlic extract
Nettle leaf extract
Pfaffia paniculata
Moringa oleifera
Black pepper extract

Roman Testosterone Support

Best budget pick


  • Nutritional supplements and prescription treatment available
  • High doses of zinc and ashwagandha in the supplement
  • At-home testosterone testing conveniently offered
  • Reusable capsule container cuts down on waste
  • Shipping is fast and free
  • Transparent safety measures


  • Supplement is only available as a subscription
  • Vague return policy and no money-back guarantee
  • Prescription option is prescribed off-label (not yet FDA-approved for use as a testosterone therapy)
Roman testosterone support

Photo by Innerbody Research

Roman continues to grow into one of the most comprehensive men's health providers online. Its range of high-quality products and services is right up there with its competitors like Hims. It has additional products for hair loss, sexual health, mental health, and more. But unlike some of those competitors, Roman has a dedicated testosterone program that includes:

  • At-home testosterone testing
  • Prescription clomiphene
  • A nutritional supplement with six targeted ingredients

Previously, Roman only offered its nutritional supplement as a means to treat low testosterone. It has since added an at-home testosterone test and prescription therapy. We already have a comprehensive review of the best at-home testosterone tests, and this new product gives several of our top picks a run for their money in both cost and convenience.

NOTE: As of January 2024, due to an ongoing clomiphene citrate shortage, Roman has temporarily suspended its testing and prescription services for testosterone. We'll continue to monitor the situation and update this page as Roman brings its testing and prescription support back online.

When it comes to prescription clomiphene, you should know that this isn't a testosterone replacement therapy. Those therapies contain the hormone itself that you get into your body with topical creams or injections. Clomiphene doesn't contain any hormones, but it signals to your brain that there isn't enough testosterone in your system, leading to an increase in production. The results of trials in men are impressive, and the side effect risk is low. This is in stark contrast with testosterone replacement, which is associated with a litany of side effects, including fertility issues.

There are some causes and cases of low testosterone that are too severe for clomiphene to be effective, but it's a very promising testosterone booster for men who don't find success with nutritional supplements or those who want to skip ahead to stronger, more clinically supported treatments without reaching for testosterone replacement.

Testosterone testing

Roman offers an at-home testosterone test you can use to determine whether your T levels are low enough to warrant treatment. The test includes a free consultation with a provider after you receive your results to help you determine next steps.

At-home testosterone testing requires you to draw two finger prick blood samples early after waking and after a fast of at least eight hours. You'll mail the samples off to a Roman-affiliated lab and see the results within a few days.

Testing from Roman costs $69, which is just about average when compared to other providers like LetsGetChecked or Everlywell. However, the American Urological Association recommends at least two testosterone tests to determine if an individual has low testosterone. Various factors — from recent exercise activity to diet — can impact testosterone measurements. Roman's competitors all provide just one sample collection per kit, meaning you'll have to spend twice as much money to get a reliable diagnosis.

If your test reveals low testosterone levels, you can talk to a Roman-affiliated provider to determine whether you want to take the nutritional supplements or seek a prescription remedy. If you choose prescription clomiphene, there's an ongoing program you can be part of that we'll get into below.

Testosterone Support nutritional supplement

Roman's Testosterone Support nutritional supplement is one of the simpler options on the market. We appreciate that simplicity for the increased safety it provides. Instead of throwing over a dozen ingredients at the trouble and hoping one or two get the job done, Roman focuses its formula on six ingredients with a fair amount of scientific research behind them:

  • Ashwagandha: 600mg
  • Zinc: 30mg
  • Magnesium: 350mg
  • Vitamin D3: 50mcg
  • Maca: 2,000mg
  • Copper: 2mg

The copper in Roman Testosterone Support is critical. Very few testosterone boosters or male enhancement pills that contain zinc also contain copper, yet studies consistently show that increased zinc supplementation can contribute to copper deficiency. So including copper here ensures that your mineral balance remains constant throughout treatment.

Your first order will come with a jar capable of holding a month's worth of testosterone support. Subsequent shipments will arrive in pouches that you tear open and use as refills for your jar. This is a nice way for the company to save a little money on packaging, keep shipping costs low, and protect the environment.

There are two available billing cycles for Roman Testosterone Support:

  • Monthly plan: $35/month
  • Quarterly plan: $29/month (billed quarterly at $87.30)

This makes Roman the least expensive option among our top picks, and we've consistently experienced extraordinarily fast shipping from its distribution centers. (Plus, that shipping is free with a subscription).

Prescription clomiphene

Men who are diagnosed as having low testosterone will have the option to seek prescription assistance through Roman in the form of clomiphene. Clomiphene, a selective estrogen receptor modulator, is currently FDA-approved for treating infertility in women whose ovaries fail to produce adequate numbers of eggs. But doctors have begun prescribing it off-label for use in men with low testosterone after a series of clinical studies showed it to be both safe and effective as a testosterone booster.

Clomiphene effectively normalizes testosterone levels in about 80% of users, based on a few clinical studies that relied on self-reported increases in libido and energy or decreases in body fat or mood disorders. Testosterone replacement therapy seems to be somewhat superior in terms of results, but it's also associated with a higher incidence of adverse effects.

If your testosterone tests reveal low testosterone levels, you can go through Roman for continued testosterone monitoring and prescription delivery at the cost of $165/month. This is slightly more expensive than the $158 monthly cost you'd pay through Hone Health for a similar treatment experience.

For men without insurance, these are good deals. But we cross-referenced the formularies for several major insurers, and if you have insurance, you can likely get coverage for clomiphene. With insurance coverage, you'll likely pay substantially less per month than $165, and you can retest using a Roman kit after a few months of treatment have elapsed.

Roman return policy

Roman's return policy is a bit unclear. It states that it cannot provide refunds for any prescription products, but its testosterone support — and many other products on offer — do not require a prescription. Still, when pressed about the issue, Roman states that it does not accept returns on testosterone support. This is frustrating and a disappointment when you consider that other companies offer money-back guarantees, allowing you to try their products with some risk reduction.


Fastest results


  • Wide variety of testosterone-boosting products available
  • Extensive ingredient lists
  • High doses in most products
  • Single-ingredient supplements available
  • Can be found in some retail stores
  • 30-day money-back guarantee


  • Most products are very pricey
  • No subscription discounts
  • Some intense formulas increase side effect risk

Nugenix offers more than a dozen products targeting men's health. Among its testosterone boosters, the company makes a point to employ ingredients that studies associate with free testosterone rather than total testosterone. Many of these formulas contain high doses of ingredients that perform well in studies, but those high doses can also increase the risk of adverse reactions, especially when they're combined together in a single supplement.

Nugenix may struggle to compete due to higher prices, but it has some of the most potent ingredient profiles on the market. We've identified its top total testosterone and free testosterone boosters as the best options for you:

  • Total T Maxx: $169.99 per bottle
  • Ultimate: $89.99 per bottle

If you can afford it, you can stack these products together, as their ingredients complement one another and would provide you with a complete approach to testosterone boosting.

Here are the ingredients for Total T Maxx:

  • Vitamin D: 20mcg
  • Zinc: 15mg
  • Fenugreek extract: 600mg
  • Ashwagandha extract: 600mg
  • Shilajit purified extract: 500mg
  • Eurycoma longifolia extract: 150mg
  • Rhodiola extract: 150mg
  • Maca extract: 150mg
  • Asian ginseng extract: 140mg
  • Black ginger extract: 90mg
  • White button mushroom extract: 10mg
  • Black pepper extract: 5mg

And here’s what makes up the Ultimate formula:

  • D-Aspartic acid: 3,000mg
  • Fenugreek extract: 700mg
  • Epimedium extract: 625mg
  • Stinging nettle extract: 300mg
  • Maca extract: 200mg
  • Eurycoma longifolia extract: 150mg
  • Mucuna pruriens extract: 125mg
  • Boron: 10mg

The 10mg of boron in Nugenix Ultimate is right in line with the dose used in one prominent study. Ashwagandha, fenugreek, and D-aspartic acid also appear in clinically relevant doses. And the addition of 5mg black pepper extract should increase bioavailability and, by extension, efficacy.

Nugenix also offers single-ingredient supplements you can use if you want to minimize side effect risks or determine for sure which ingredients work for you. Unfortunately, the company only offers four such ingredients under the Nugenix Essentials banner:

  • Horny goat weed
  • Pine bark
  • Maca
  • Tribulus terrestris

Of the four, only Tribulus has a reliable connection with testosterone, and those studies use a wide range of doses. Nugenix's 1,000mg dose is on the upper end of that range.

Nugenix return policy

Nugenix has a reliable return policy, but the process is a little more complicated than other companies. It changes depending on what kind of order you have placed. For any automatic shipment order, you get a 30-day money-back guarantee under which you'll have to pay for return shipping, but you can send back an empty bottle. One-time orders are only returnable if they're unopened, but you get 90 days to make the decision.

Ultimately, this is similar to what you'll find with competitors, though the money-back period is shorter than several other options. What's frustrating is that the website buries this information in its terms of service, with no direct link to a money-back guarantee or return policy (which many competitors link to clearly).

Nugenix vs TestoPrime

The biggest difference between Nugenix and TestoPrime is the number of products available from Nugenix, whose men's health offerings include prostate supplements, thermogenic fat burners, and cellular health support.

Nugenix has some of the best testosterone boosters on the market, with long lists of effective ingredients in high doses. But its prices consistently hold them back from being considered the best overall option.


Best for ED and easiest to take (drops)


  • Capsules include boron and vitamin K1
  • Drops complement capsules nicely
  • Free of most allergens
  • 100-day money-back guarantee


  • Capsules or drops on their own don’t provide a comprehensive ingredient set
  • Capsules and drops are expensive to combine
  • Free shipping on bulk orders only
  • Zinc dose is lower than most competitors
  • Relies too heavily on D-aspartic acid

Photo by Innerbody Research

With its testosterone drops, Testogen offers one of the more interesting products on the market. These drops work best when you combine them with the company's capsules; the drops on their own are not particularly strong. If your test results show that your testosterone levels are normal but on the low side of normal, something as light as these drops might be an excellent place to start because they're easy to take and shouldn't create any overcorrection.

The drops also contain L-arginine, which many studies have examined as an alternative treatment for ED. In some ways, its action resembles that of a PDE-5 inhibitor like Viagra or Cialis (prescription erectile dysfunction medications), albeit with a much less significant effect.

That doesn't mean you should neglect Testogen's capsules, however. They offer a dose of D-aspartic acid at the upper end of what's been shown effective in studies. Some research points toward a decrease in testosterone levels at doses above this, so men with lower BMIs might not benefit from it as much. You also get 50mcg of vitamin D, which is pretty close to what studies often use to increase testosterone.

Here’s what you’ll get in each Testogen capsule:

  • D-Aspartic acid: 2,352mg
  • Fenugreek extract: 40mg
  • Vitamin D3: 10mg
  • Zinc: 50mcg
  • Korean red ginseng extract 4:1: 40mcg
  • Boron: 8mg
  • Nettle leaf extract 4:1: 40mg
  • Magnesium: 200mg
  • Vitamin B6: 20mg
  • Vitamin K1: 20mcg
  • BioPerine 95% piperine: 5mg

Compare that to the ingredient list for the Testogen drops:

  • L-Arginine: 500mcg
  • Zinc: 1.5mg
  • Vitamin D3: 0.75mcg
  • Epimedium sagittatum
  • Pfaffia paniculata
  • Korean ginseng root
  • Moringa oleifera

Note: Testogen is not forthcoming about all ingredient amounts in its drops. Most of the testosterone boosters in this guide refrain from using proprietary blends that could obscure ingredient doses, but here you see just that. It's unfortunate. Based on the low amounts of zinc and vitamin D in the drops, it's perhaps safe to assume the other ingredients appear in low amounts. It would be best to think of the drops primarily as a source of L-arginine, though if that’s the case, you could potentially save money by opting for a standalone L-arginine supplement to stack with Testogen capsules.

Capsule pricing

  • 1-month supply: $59.99
  • 2-month supply: $119.99 plus one free bottle
  • 3-month supply: $179.99 plus two free bottles

Drop pricing

  • 1-month supply: $34.99
  • 2-month supply: $69.98 plus one free bottle
  • 3-month supply: $104.97 plus two free bottles

Capsule and drops combination pricing

  • 1-month supply: $89.99
  • 2-month supply: $189.97 plus one free bottle of each
  • 3-month supply: $284.96 plus two free bottles of each

Testogen offers a 100-day return policy if you aren't completely satisfied, but it'll charge you a $15 "fixed claim fee," which the company says covers administrative costs. It'll also only accept returns on your first order.

Testogen vs Nugenix

Compared to Testogen, Nugenix has a lot more products available. Many of those are testosterone boosters, but Nugenix also sells supplements for prostate health, fat loss, and cellular maintenance. Nugenix Ultimate is the closest product to Testogen capsules, with nearly identical ingredient lists. The most striking difference between these two is price. Where Testogen capsules cost $59.99 for a single bottle and as little as $36/bottle in bulk orders, Nugenix Ultimate costs $89.99/bottle.

Test Boost Max


  • One of the few options to include Tribulus terrestris
  • Uses good-quality KSM-66 ashwagandha extract
  • Lifetime money-back guarantee
  • Gluten-free formula
  • Innerbody readers can take 25% off with the code SCULPTTB25


  • Free shipping on bulk orders only
  • Not vegan-friendly

Test Boost Max relies on some familiar ingredients to boost testosterone, but it also has a handful that you won't see in too many other products. Central to its formula is Tribulus terrestris, which is the subject of much controversial research. A recent review didn't completely debunk its potential for use as an aphrodisiac or sexual performance enhancer, but it did call into question Tribulus terrestris' commonly accepted mechanism of action. That doesn't mean it's ineffective, but we have a long way to go before we fully understand its potential.

Test Boost Max also uses KSM-66 ashwagandha, which is one of the better ashwagandha extracts on the market. And its 600mg dose aligns well with studies looking into its testosterone-boosting and mood-regulating effects.

Test Boost Max pricing

Test Boost Max used to only offer discounts on bulk orders, with no kind of subscription system in place. That system appeared as follows:

  • 1-month supply: $49
  • 3-month supply: $132
  • 6-month supply: $195

You can still make one-off purchases at any of these levels for the prices listed, but you can also now get Test Boost Max on a subscription basis. This allows you to save some money up-front by not needing to spend hundreds of dollars all at once just to save. The subscription model only applies to single-bottle purchases, sending one month's supply to your home every 30 days for $41/month. That's better than the per-bottle price at the three-bottle bulk level but not as good as the per-bottle price if you purchase six bottles all at once.

For additional savings, you can take advantage of our discount and take 25% off sitewide using the code SCULPTTB25.

Test Boost Max ingredients

Other than the Tribulus terrestris and ashwagandha, much of Test Boost Max's ingredient profile is substandard. This testosterone booster uses ingredients with only a few small-scale studies supporting them, and it does so with doses often lower than those used in research.

Here's a look at the ingredients list:

  • Tribulus terrestris: 500mg
  • American ginseng root: 20mg
  • Cordyceps mushroom: 20mg
  • Ashwagandha root 4:1 extract: 600mg
  • Hawthorn berry extract: 40mg
  • Longjack root: 20mg
  • Epimedium: 160mg

Of the ingredients listed, only tribulus and epimedium appear at doses we would consider likely to be effective.

While its ingredient list might not be as impressive as others, there is an excellent return policy. It offers to give your money back as part of a lifetime guarantee for single-bottle purchases or the first bottle of a bulk purchase when you return the unopened bottles along with it. If you consume more than one bottle from a bulk purchase, you will only get reimbursed for one opened bottle and any unopened bottles.

Test Boost Max vs Nugenix

With the exception of a 600mg dose of ashwagandha extract, there are only a few doses that hold a candle to what you'll find in most testosterone boosters from Nugenix. At this time, the only reasons you might prefer Test Boost Max are that it includes Tribulus terrestris — which you'll rarely see in a Nugenix supplement — and that it costs a lot less. That price gap grows if you buy multiple bottles of Test Boost Max. That can end up costing you just one-third of the prices you'll see from Nugenix.

Testosterone replacement therapies (TRT)

If using a testosterone booster doesn't solve your problems or you've received a clinical hypogonadism diagnosis, you may require more than dietary support. That's where testosterone replacement therapies come in. The purpose of these processes is to add testosterone directly to the body, often with targeted supplementation or medication. They are much more dangerous than other methods, however, with side effect risks including hormonal imbalances resulting in aggression, acne, mania, and infertility.

Most testosterone replacements come in gels or injectables. The gels are undeniably more convenient, but they carry more risk, especially if you live in a house with women or children. Family members can be particularly susceptible to secondary contact with such gels (e.g., residual gel on a bathroom countertop). There have been examples of early-onset puberty, unwanted hair growth in girls, and interference with pregnancy and hormonal cycles.

Testosterone replacement therapies are consistently more expensive than supplements, but the fact that there is diagnostic testing built into its systems might make it a more convenient choice if you suspect your low T is a serious issue.

Here's a quick look at common TRT medications:

Testosterone cypionate and testosterone enanthate

Testosterone cypionate and testosterone enanthate are androgens and anabolic steroids bioidentical to testosterone in the body. Clinical doses will mimic the levels of testosterone you'd see in a normal, healthy young man. You can take them as subcutaneous or intramuscular injections, gels, or sublingual troches. This is the strongest clinical TRT, and side effects can be correspondingly severe, including an increased risk of heart attack, prostate enlargement, and liver malfunction. There is also a roughly 10% chance of injection patients developing secondary polycythemia within a year of use, and a 40% chance after 10 years, leading to risks like blood clotting, heart attack, stroke, or aneurysm.


Doctors treating patients with low testosterone often prescribe a therapy to increase testosterone levels. But if a man's aromatase enzymes are overactive in converting testosterone into estradiol, that could unintentionally increase a patient's estrogen. Anastrozole acts as an aromatase inhibitor, preventing the enzyme from converting this extra testosterone.

Clomiphene citrate

Sometimes seen as the brand Clomid, clomiphene citrate is an estrogen receptor modulator that increases the production of luteinizing hormone (LH). That hormone signals the testes to produce more testosterone and sperm, making this ingredient critical for men with ED or infertility issues.

Human chorionic gonadotropin

In pregnant women, the placenta produces human chorionic gonadotropin (hCG) as a signal to produce more progesterone. In men with low T, hCG performs like LH, providing additional signals to the testes that it's time to make more testosterone.

Your consulting physician will prescribe these alone or in combination according to the symptoms you present and your goals for therapy.

Insider Tip: Testosterone cypionate uses a better carrier oil than testosterone enanthate, resulting in more comfortable injections and less irritation at the administration site. It also has a longer half-life than enanthate, so opt for companies offering cypionate whenever you can.

Here's a quick chart comparing two of the top TRT companies:

VaultHone Health
Initial test cost$150$145
Test self-administered?
Membership costNone$120/month
Medication costs$165-299/month$20-48/month
InjectableTestosterone cypionateTestosterone enanthate
Human chorionic gonadotropin

Hone Health

Best testosterone replacement therapy

Hone Health operates similarly to many at-home testing companies. You can order and take a test for a flat fee, then sign up for a monthly membership to access prescriptions, drug discounts, and free retesting every three months. Unlike Vault's system, you're on your own for the blood draw, though that does seem to reduce the cost of the initial test.

Your initial test will look for the following biomarkers:

  • Total Testosterone
  • Free Testosterone
  • Albumin
  • Sex Hormone Binding Globulin (SHBG)
  • Luteinizing Hormone (LH)
  • Estradiol
  • ALT
  • AST

Your consulting physician may order a supplemental test before they design your regimen. That test looks for:

  • Total Testosterone
  • Prolactin
  • Prostate-Specific Antigen (PSA)
  • Hematocrit

Follow-up tests are free from Hone, so your doctor can ensure the treatments are working and the doses are safe. They look at the following biomarkers:

  • Free Testosterone
  • Sex Hormone Binding Globulin (SHBG)
  • Luteinizing Hormone (LH)
  • Estradiol
  • ALT
  • AST
  • Prolactin
  • Prostate-Specific Antigen (PSA)
  • Hematocrit

Hone Health treatments

Hone Health offers the following treatments in its TRT regimens:

  • Testosterone cypionate injectable
  • Testosterone cypionate topical cream
  • Testosterone cypionate sublingual troche
  • Anastrozole
  • Clomiphene citrate
  • Nutritional supplements

Hone Health pricing

  • Initial test and consultation: $45
  • Monthly membership: $120

You'll have to pay for your medication in addition to initial consultation and membership prices, but the membership includes free retesting of your testosterone levels every 90 days. Monthly medication costs are as follows:

  • Testosterone cypionate injectable: $48/month
  • Testosterone cypionate topical cream: $48/month
  • Testosterone cypionate sublingual troche: $48/month
  • Anastrozole: $20/month
  • Clomiphene citrate: $38/month
  • Natural supplements: $40/month

For men interested in clomiphene, the most direct comparison to Hone is Roman. Between the cost of membership and the clomiphene, Hone's program costs $158/month compared to Roman's $169 monthly cost. Roman also has the more expensive initial consultation at $69 compared to Hone's $45. And considering Hone's superior catalog of prescription treatments, we recommend them over Roman for TRT.


Vault provides a handful of health services in addition to comprehensive COVID-19 testing. That used to include comprehensive testosterone replacement, which involved an initial assessment and blood draw. After those results came in, you'd go over them with a Vault physician and build a treatment plan.

Vault offered the following treatments as part of its testosterone replacement therapy:

  • Testosterone cypionate (via subcutaneous or intramuscular injection)
  • Testosterone cypionate (via topical cream or sublingual troche)
  • Anastrozole
  • Clomiphene citrate
  • Human chorionic gonadotropin (hCG)

One of the most compelling offers on this list was the hCG. This is a hormone we hear about most often around pregnancy, as the placenta produces it. Its presence or elevation in a woman is usually a sign of pregnancy. In men, hCG behaves like a luteinizing hormone, signaling the testes to produce sperm and testosterone.

But in early 2022, Vault announced a partnership with Clarus Therapeutics for the distribution of a new testosterone delivery method branded Jatenzo. Jatenzo is a softgel capsule delivery system for exogenous testosterone. In anticipation of this distribution channel, Vault has apparently suspended all other testosterone replacement therapies.

That means no more creams or injections. Compared to other pill-based medications for low testosterone, Jatenzo promises greater efficacy, with an 87% success rate bringing testosterone levels from below 200ng/dL well into the normal range (approaching 500ng/dL in many cases).

Unfortunately, Vault doesn't appear to offer Jatenzo through its website at the moment. (There aren’t any mentions of TRT on the website at the time of writing.) You'll have to speak to your doctor to learn more about it and find out if you're a candidate for its use.

Male enhancement pills

There's a whole subcategory of nutritional supplements that may help men with low testosterone or those with its symptoms, commonly known as male enhancement pills. They come from a handful of companies and consist of many ingredients similar to those you might find in a testosterone-targeted supplement.

Most of the ingredients from testosterone boosters that also make their way into male enhancement pills are the ones whose research points toward increased libido and sexual performance. They tend to have fewer studies looking specifically at their relationship to testosterone levels, and doses in the supplements can often be far below what studies would recommend.

Still, for men with performance issues who suspect they might not have low testosterone, these can offer a well-targeted approach.

Performer 8

BEST PRICE: $39/bottle

Performer 8's ingredients are about as close to many targeted testosterone boosters as you'll see among male enhancement pills. A 3,000mg dose of muira pauma gives it the potential to address erectile dysfunction while many of its other ingredients work to raise testosterone.

The best thing about Performer 8 is its money-back guarantee. It's a lifetime promise that if you're unsatisfied at any point in the process, you can set up a return and receive a full refund.

Here's a quick look at Performer 8's ingredients:

  • Ashwagandha: 500mg
  • Maca root extract: 30mg
  • Muira puama: 3,000mg
  • Ferrous bisglycinate: 12mg
  • Panax ginseng: 6,000mg
  • Barrenwort: 1,000mg
  • Pine bark extract: 300mg
  • Glucuronolactone: 600mg
  • Grape seed extract: 30mg

In our estimation, Performer 8 is currently the best male enhancement pill on the market.

VigRX Plus

BEST PRICE: $49.16/month

While many male enhancement supplements rely on studies that focus on individual ingredients, VigRX can boast a study specific to its formulation. Unfortunately, that study looked at a much larger dose of the VigRX formula than what we see in the supplement sold to consumers. And the doses found in the consumer-facing supplement are often subpar compared to research into their individual potentials.

  • Damiana: 200mg
  • Epimedium leaf extract: 15mg
  • Asian red ginseng: 100mg
  • Muira pauma bark extract: 50mg
  • Tribulus terrestris: 150mg
  • Cuscuta extract: 50mg
  • Hawthorne berry: 100mg
  • Catuaba bark extract: 25mg
  • Saw palmetto: 100mg
  • Ginkgo biloba: 100mg
  • BioPerine: 10mg

You can learn all about the VigRX in our thorough review.


BEST PRICE: $33.33/bottle

Semenax has the most extensive ingredients list of any testosterone booster in this guide, with 18 minerals, botanicals, and amino acids that studies show might stimulate testosterone and increase semen production. Here's a complete list:

  • Swedish flower pollen: 50mg
  • L-arginine HCL: 250mg
  • L-lysine: 250mg
  • Epimedium leaf: 150mg
  • L-carnitine: 500mg
  • Zinc: 30mg
  • Catuaba bark: 200mg
  • Maca: 400mg
  • Pumpkin seed: 30mg
  • Vitamin E: 60IU
  • Pine bark extract: 300mg
  • Muira puama: 100mg
  • Hawthorn berry: 50mg
  • Cranberry: 50mg
  • Avena sativa extract: 50mg
  • Sarsaparilla: 50mg
  • Butea superba: 500mg
  • Tribulus terrestris: 50mg

The most promising part of this formula is the 30mg of zinc. Despite the number of ingredients, several of these doses are substandard compared to successful small-scale studies.

You can learn more about Semenax in our complete review.

Male Extra

BEST PRICE: $30/month

Compared to Semenax, Male Extra has a much slimmer ingredient list, including methyl sulfonyl methane (MSM), a form of sulfur. Anecdotal evidence suggests a link between sulfur and penis enlargement, but extensive study is still missing from the picture.

More useful is the included pomegranate juice. A pair of studies suggest the juice can lead to stronger erections and improved nitric oxide performance.

Male Extra's whole ingredients list:

  • Vitamin B3: 18mg
  • Zinc: 14mg
  • L-Arginine hydrochloride: 600mg
  • Pomegranate extract: 500mg
  • Methyl sulfonyl methane: 100mg
  • L-Methionine: 100mg
  • Cordyceps mushroom powder: 25mg

You can read more about Male Extra's potential here.


BEST PRICE: $41.66/month

ExtenZe is one of the better-known brands for male enhancement on the market. Its ingredients list is extensive, and it has a fair amount of shared ingredients with some of the top testosterone boosters (like maca and DHEA). Just make sure you buy directly from the company on this one, as the FDA found some imitation ExtenZe on the market back in 2018 that contained sildenafil, the active ingredient in Viagra.

Here's a look at ExtenZe's ingredients:

  • Tribulus terrestris (Aerial Part and Fruit)
  • DHEA (98%)
  • Yohimbe extract (bark)
  • Pregnenolone
  • Korean ginseng extract (root)
  • L-Arginine HCl
  • Velvet Bean Extract (Seed)
  • Chrysin
  • Gamma-Aminobutyric Acid (GABA)
  • Niacin
  • Cnidium Extract (Seed)
  • Tongkat Ali Extract (Root)
  • Damiana (Leaf)
  • Barrenwort extract (Leaf)
  • Licorice extract (root)
  • Muira Puama extract (stem)
  • Astragalus extract (Root)
  • Black pepper (seed)

We go deeper into the ingredients and possibilities of ExtenZe in our review.

Volume Pills

BEST PRICE: $33.33month

Fans of Chinese and Ayurvedic medicine will appreciate the combination of ingredients they'll find in Volume Pills. The company certainly is one of many to look at for effective treatments in Eastern medicine, but it goes the furthest to include a wide variety. The downside here is the need for more scientific evidence that many of these ingredients might work. But if you prefer botanicals to other lab-derived ingredients, it might be a good place to start.

Here's a complete list of Volume Pills’ ingredients:

  • Solidin
  • Rou Gui
  • Ku Gua
  • 4, 5, 7 Trihydroxyflavone
  • Arjuna
  • Dong Chong Xia Cao
  • Zinc gluconate
  • Ling Zhi
  • Xian Mao
  • Tian Men Dong
  • Drilizen
  • Fucus vesiculosus
  • Hong Hua Fen
  • Emblica officinalis

Volume Pills provides the ingredient quantity of its entire proprietary blend per dose, but not for the individual ingredients. We go deeper into Volume Pills' possibilities in our full review.

Max Performer

BEST PRICE: $30/month

The ingredients in Max Performer are about as close to the ingredients in the average testosterone booster that you can get. The only things missing are ashwagandha root, D-Aspartic acid, boron, and fenugreek. It offers a decent amount of horny goat weed, maca, and zinc.

Here’s a closer look at what’s inside:

  • Horny Goat Weed: 1,000mg
  • Maca: 1,000mg
  • Cordyceps: 1,000mg
  • Korean Red Ginseng: 1,000mg
  • BioPerine: 15mg
  • Selenium: 120mcg
  • Zinc: 24mg
  • Pantothenic Acid: 40mg
  • Pyridoxine HCl: 10mg
  • Iron: 14mg
  • Niacin: 32mg
  • Riboflavin: 10mg
  • Cyanocobalamin: 10mg

If you're curious about Max Performer, you can read more in our review.

Testosterone FAQ



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