Viasil Reviews: The natural performance enhancer for you?

Viasil offers a set of individually effective ingredients in relatively low-impact doses. Find out if it’s strong enough to make a difference.

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Last updated: May 15th, 2024
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Viasil Reviews

Nearly a third of men experience erectile dysfunction at some point. It can feel embarrassing in the heat of the moment, but there’s nothing to be ashamed of. And if you’re a man over 70 or take SSRIs for depression, the odds are even higher that you’ll develop symptoms like low libido or difficulty maintaining an erection. The good news is that there’s plenty of help out there. And many of those potential remedies don’t require a prescription, like Viasil, a nutritional supplement geared toward helping men address their sexual dysfunction.

Our Findings

Editor's Rating3.00

Viasil tablets might be worth trying if you’re looking for a non-prescription way to address sexual performance issues without taking ED medications like Viagra. The product uses relatively potent extracts of ingredients that have performed well in a handful of small-scale research studies. The 100-day money-back guarantee gives you enough time to see if the product will work without risking too much money. However, you might want to pass on the scientifically unproven Instant Erection Gel.


  • Ingredients improve blood flow and nitric oxide production in small-scale studies
  • Potentially beneficial for men with SSRI-induced erectile dysfunction
  • Low doses of some ingredients may improve safety
  • 100-day money-back guarantee
  • Free shipping on bulk orders


  • Certain ingredients are too underdosed to be effective
  • May not work as well for young men as for older men
  • Questionable long-term safety of the free gel
Table of Contents

In this Review

Why you should trust us

For this review of Viasil, our team pored over more than 200 scientific research studies looking into male sexual dysfunction and the various interventions — both prescription and non-prescription — available to men. We then distilled those hundreds of hours of research into this review.

Additionally, like all health-related content on this website, this review was thoroughly vetted by one or more members of our Medical Review Board for accuracy. We’ll keep an eye on Viasil and the broader men’s health landscape as time goes on in order to keep this review and the rest of our critical men’s wellness information current.

Over the past two decades, Innerbody Research has helped tens of millions of readers make more informed decisions about living healthier lifestyles.

How we evaluated Viasil

Viasil falls into a class of men’s sexual wellness supplements that we have extensive experience researching and reviewing for our readers. When we set out to apply our expertise to a given supplement in this particular niche, we take a few central criteria into account: effectiveness, safety, cost, and privacy. There are certainly other considerations besides these, but we consider these parameters to be the most important for the average man considering Viasil or one of its competitors.

Effectiveness is the biggest factor in our overall rating. It’s not that the other criteria don’t matter, but if a supplement doesn’t work, you’re not going to take it. Other issues cease to be important once you’ve moved on to a different product. In a close second behind effectiveness is safety. This is especially true in the men’s sexual wellness space, as no man wants to put his genitalia on the line, especially if the odds of success are low.

We also look into cost and privacy, specifically comparing Viasil’s price structure and privacy policies with those of its competitors. Given its specific combination of ingredients, Viasil has the potential to help some men who are looking for a non-prescription way to ameliorate certain problems in the bedroom, but it doesn’t offer the best value for its class. Its price point is on par with products like Semenax or Male Extra, but most of its ingredients appear in smaller doses. For example, Viasil relies primarily on a 700mg combination of pomegranate and sweet orange extracts, whereas Male extra delivers a 500mg dose of pomegranate extract in addition to large quantities of other ingredients, like zinc and L-arginine, for the same price.

Special Offer: FREE Shipping on Bulk Orders


Rating: 6 / 10

Without a statistically significant study available looking at Viasil’s specific combination of ingredients, our measure of its potential efficacy has to come from elsewhere. Specifically, we examined the available research regarding all of its main ingredients, looking at things like the doses used in any studies that found efficacy and examining study methods, margins of error, and potential bias or conflicts of interest.

Central to Viasil’s formula is a combination of pomegranate and sweet orange extracts made by the BioActor pharmaceutical company and going by the brand name Actiful. The combination was developed with older patients in mind as a potential source of increased energy. A white paper on the product points to a handful of studies linking its ingredients with improved physical performance in active, trained subjects, as well as demonstrating a mechanism that may improve blood flow in overweight subjects. The latter effect may be attributed to a particular citrus polyphenol that can stimulate the production of nitric oxide, at least according to a 2011 study.

However, that study looked at a 500mg daily dose of the concentrated polyphenol derived from sweet orange, while the entire dose of Actiful in Viasil is 700mg and contains far more than just that one polyphenol. This isn’t to say it wouldn’t be effective at this dosage, but we would require studies conducted at the doses provided — and ideally in combination with Viasil’s other ingredients — to draw firmer conclusions.

Viasil’s other ingredients appear mostly as reasonably potent extracts that bring what look like small amounts closer to what the product’s competitors provide. But those doses are still on the low side. Compare Viasil’s 400mg (20mg of a 20:1 extract) to Performer 8’s 6,000mg of ginseng, and the difference is clear. The weakest dose, however, is the ingredient with the most promising research behind it. Viasil only provides you with 1.5mg of zinc picolinate. Other companies deliver 30-50mg of zinc (Male Extra: 45mg; Max Performer: 24mg) as part of ingredient lists that are more comprehensive.


Rating: 7 / 10

Viasil’s safety profile isn’t bad, primarily because it doesn’t use particularly high doses of any one ingredient. The company banks on the combination of ingredients working to provide results without clearly identifiable safety risks. But that doesn’t mean those risks aren’t there. In fact, just as a lack of research into Viasil’s specific combination of ingredients makes it difficult to ascertain its ultimate effectiveness, that research deficit obscures any potential claims of safety.

When we look at the individual components, we see ingredients that are mostly safe for most people. Studies looking into each have occasionally found recurrent adverse effects or a threat of contraindication with particular medications. For example, research into icariin — the beneficial component in horny goat weed extract — reveals a high potential for interactions with various drugs with as-yet-unknown consequences. And considering the compound’s ability to act like a PDE-5 inhibitor, there may be additional dangers to those with blood pressure issues.

Less severe side effects are also not uncommon, including digestive discomfort, breathing problems, headache, and heart palpitations. These effects are not unique to Viasil; most male enhancement products have relatively similar safety profiles, offset only by moderate ingredient variety and dosage differences.

The best thing you can do before adding Viasil or any male enhancement product to your regimen would be to talk to your doctor and review all of your options, making sure to mention any heart issues you may have. When speaking with a doctor, it’s a good idea to describe this supplement as something that may act like a PDE-5 inhibitor.


Rating: 6.5 / 10

When we evaluate a product like Viasil’s cost, we take a little more than just the price tag into account, considering things like potential bulk or subscription savings, shipping costs, and any money-back guarantee available. Viasil doesn’t have a subscription platform, so the only way you can save money is by buying in bulk. A one-month supply of Viasil costs $60, but that cost per month comes down to $36 if you buy a five-month supply.

Here’s a look at how Viasil’s pricing compares with its top competitors:

Cost per monthCost per month with a four-month supplyCost per month at best bulk level
Performer 8$65$43$39
Max Performer$70$46$30
Male Extra$60$40$30
VigRx Plus$70$60$49
Volume Pills$60$52$33

As you can see, Viasil’s one-month supply price falls right in the middle of the market. The four-month and six-month supplies are on the low end, however, which is a good thing. That four-month supply is a great place to start for most men, mainly because it can take up to three months for any effects to set in and because Viasil’s 100-day money-back guarantee lets you get to that three-month mark and still get most of your money back.

At its highest bulk tier — a 12-month package — Viasil’s per-month price actually increases, strangely, to an effective monthly cost of $38; you would save $95 ordering the six-month package twice rather than ordering a 12-month shipment.


Rating: 6 / 10

Companies like Viasil tend to have relatively similar privacy practices and policies. Most utilize cookies and web beacons to track the way you use their websites, what led you to the site, and where you go when you leave. This isn’t anything earth-shattering, but it’s interesting that Viasil is one of the few sites that does not offer any way to opt out of this process.

Some companies have phone numbers you can call or email addresses you can use to opt out of information gathering and sale. Others make it even easier by letting you click a button or two and be done with it. But all Viasil has is some advice on deleting cookies from your browser after you leave the site. This is pretty underwhelming as privacy policies go.

To protect your real-world privacy, Viasil abides by the same measures all serious male enhancement pill manufacturers use. The package you receive in the mail has no identifying marks or logos anywhere on it, and the return address on the shipping label also won’t give away what’s inside. We always appreciate this level of discretion, but it is par for the course.

What is Viasil?

Viasil is a men’s sexual wellness supplement produced by Health Nutrition Ltd. in the U.K. It contains a small list of botanical ingredients in addition to a minuscule dose of zinc and is taken in tablet form. In theory, Viasil tablets help men deal with issues in the bedroom by promoting better blood flow through increased nitric oxide production.

There’s also evidence that Viasil’s inclusion of sweet orange extract could help combat erectile issues caused by aging or SSRIs. A citrus sinensis animal study gave rats a 50 mg/kg extract of orange peels to reduce ED symptoms induced by SSRIs (Paxil in this case). There was a significant decrease in sexual behavior but some improvement in ED symptoms among the Paxil-treated rats. The dose discrepancy here makes it very difficult to draw firm conclusions beyond the fact that the extract appeared to cause some changes in sexual health and behavior. In practice, effects will vary pretty widely from man to man, especially considering factors like age, diet, and potential underlying conditions contributing to sexual dysfunction.

Viasil also produces an Instant Erection Gel, which is a form of topical L-arginine that the company claims can instigate vasodilation locally in the penis. We haven’t found much evidence to back up that claim, but we’ll get into that more deeply in a bit.

To get a better sense of how Viasil may or may not work for you, let’s take a closer look at its ingredients, their dosages, and how those ingredients perform in clinical studies.

Actiful (700mg)

Actiful, the main component of Viasil’s capsules, is the brand name of a supplement created in 2019 by the Dutch company BioActor. It combines citrus sinensis (extracted from oranges) and punica granatum complex (extracted from pomegranates). Actiful was originally created to supplement energy, mental well-being, and improved blood flow in people 55 and older. The only existing clinical study — funded by the company that created Actiful — found a significant increase in endurance and strength. Of course, given the source of funding, these results should be taken with a grain of salt.

A clinical study on the effects of pomegranate juice showed a modest result in improving erections. Twenty-five of 42 men reported an improvement, which is statistically insignificant but indicates some potential. It’s also important to note that the study used four ounces of pomegranate juice and not an extract. And a more recent study conducted in rats indicated the potential for the specific combination of sweet orange and pomegranate to have antidiabetic effects, which may help men who suffer from diabetic sexual dysfunction.

Zinc (1.5mg)

Zinc is an essential mineral that plays a part in many vital functions. It helps maintain cell health, plays a role in protein synthesis, and fuels 100 enzymatic functions, but your body can’t make it on its own. Getting a slight boost from a supplement like this helps you avoid an unwanted deficiency. A clinical study from 1996 also found a direct correlation between zinc and testosterone levels, where supplementation improved levels significantly after six months. However, the dose concentrations in this study were far higher than the 1.5mg of zinc in Viasil. And just about every one of Viasil’s competitors that has zinc in their formula provides a lot more of it, ranging up to 50mg.

Horny Goat Weed 10:1 Extract (100mg)

Even though it’s a well-known supplement that’s been used for ED and low libido for decades, very little dedicated, high-quality clinical research exists about horny goat weed. There is some evidence that it can mimic the effects of testosterone without being hampered by sex hormone binding globulin the way actual testosterone is. One clinical study in rats found that icariin — the primary beneficial derivative of horny goat weed — worked in a similar fashion as prescription PDE-5 inhibitors like Viagra or Cialis, but with significantly reduced efficacy. For this reason, men should avoid horny goat weed if they’re taking blood pressure medications. Horny goat weed may naturally lower blood pressure and can amplify some prescription drug effects.

Tribulus Terrestris 12:1 Extract (25mg)

Tribulus terrestris is a plant that’s been used as a folk remedy for low libido. One clinical study saw an increase in self-reported erectile performance in a small group of men. The study gave 86 men 750 mg per day over 12 weeks — a much higher dose than the 25mg extract in Viasil. And a conflicting study found no difference between a placebo group and a tribulus terrestris group over 30 days, which may not have been enough time for effects to set in.

Panax Ginseng 20:1 Extract (20mg)

Panax ginseng (a.k.a. Korean or red ginseng) is a popular herbal supplement for its anecdotally reported benefits in mental acuity and sexual performance. One comprehensive review showed improvements in seven studies among nearly 400 men according to several metrics versus a placebo. Doses ranged from 600-1,000 mg three times per day. The relatively small dosage included in Viasil leaves some questions about whether or not it’s enough to be effective, though its combination with other ingredients might make a positive enough difference. And while red ginseng is safe for most people, it has a long list of potential interactions with prescription drugs.

Ginkgo biloba 50:1 Extract (4.8mg)

Ginkgo biloba is commonly thought of as a memory-enhancing supplement, thanks in large part to a flurry of research into its brain-boosting potential a few decades back. One clinical study from that era also found that both men and women reported more satisfaction at every stage of sexual experiences (arousal, orgasm, afterglow) when taking around 200mg per day. In this study, women found more success than men (91% vs. 76%, respectively).

There are no clear guidelines on how much ginkgo biloba you should take. But keep in mind that the dosage in Viasil is minimal compared to other ginkgo supplements out there. A pure ginkgo supplement is anywhere from 100-500 mg per capsule. And most studies use doses of around 200-300 mg/per day, mitigating the risk of increased bleeding or interactions with anticonvulsants associated with much higher ginkgo doses.

Who could benefit from Viasil, and who probably won't

Based on the ingredients in Viasil, we believe older men stand the best chance of experiencing positive effects. Actiful was designed with people over 60 in mind and is the bulk of the active ingredient contained in the tablets.

If you’re experiencing a lower libido due to SSRIs, Viasil might be worth a look, as well, given a small but promising amount of research into several of its ingredients’ potential to address the adverse effects of antidepressants.

And remember that most of the studies cited utilized participants with sexual dysfunction. So if you’re someone with a healthy sexual function looking for a little boost, Viasil might not be much help for you.

Viasil Instant Erection Gel

Viasil’s Instant Erection Gel isn’t available for direct purchase. Instead, it’s included for free as part of a bundle with orders of two months or more. The company promises stronger erections in just 10-15 seconds when used in combination with Viasil tablets.

Unfortunately, a lack of clinical evidence and no data about efficacy or long-term safety make this a tough product to recommend.

Here’s a look at the gel’s ingredients:

  • L-Arginine: the main active ingredient, a naturally occurring amino acid that encourages healthy blood flow and increased nitric oxide production when taken orally
  • Water and Glycerine: the base of the gel
  • Polysorbate 20: emulsifier safely used in beauty products to modify texture
  • Sodium Hydroxide: a pH-balancer used in soaps and cosmetics (can cause skin irritation and allergic reactions)
  • Carbomer: safe emulsifier and stabilizer
  • Phenoxyethanol: a preservative to stop bacterial growth, safely used in cosmetics
  • Imidazolidinyl Urea: a derivative of formaldehyde, safe in low doses (under 0.5% of total product mass), but linked to skin irritation and other side effects in about 1% of people, according to this imidazolidinyl review

Who could benefit from Viasil Instant Erection Gel, and who probably won't

According to a 2015 clinical study of an alprostadil-based cream, topical gels have often been used to treat ED successfully. Nearly 33% of participants responded well to this topical testosterone cream, too. But there are no studies about the effects of L-arginine as a topical for treating ED. There are also no studies about the long-term side effects and safety concerns of topicals for ED.

Considering that any topical you put on your skin is directly absorbed into the area, we recommend some caution to protect your sensitive parts. And we encourage you to talk to a doctor before trying it.

Is Viasil safe?

There’s a pretty good chance that Viasil is going to be safe for most men, especially men who aren’t on any other prescription medications and those who don’t have any history of cardiovascular risk or disease. The difficulty in assessing the product’s overall safety profile comes from the same place that impacts any real assertion about its efficacy: lack of research.

Some small-scale studies in humans and animals show relatively low occurrence of adverse reactions at doses higher than those used in Viasil, but the study populations are often too small to be convincing. Additionally, those studies almost always look at individual ingredients isolated from other influences. There is no study looking at the specific set of ingredients and doses used in Viasil.

What we gather from available research suggests that the ingredients in Viasil are associated with the following potential side effects:

  • Low blood pressure
  • Upper respiratory infection
  • Diarrhea
  • Nausea
  • Vomiting
  • Insomnia
  • Nervousness
  • Heart palpitations
  • Headache

The greatest danger that ingredients in Viasil present is an interaction with blood pressure medications. Several ingredients in Viasil are intended to improve blood flow to the penis, but that often means widening blood vessels generally, which can lower blood pressure. If you’re already taking medication to control your blood pressure, this can complicate its efficacy and potentially threaten your life.

We don’t think that doses of Viasil’s individual ingredients are strong enough to be a cause for serious concern, but their interactions with one another are a mystery and will remain so until dedicated research is performed. In the meantime, the best thing you can do before taking Viasil or any male enhancement supplement would be to speak with your doctor.

Viasil’s pricing

A one-month supply of Viasil costs $59.99. Ordering more earns you free boxes and the bonus gel add-on, as outlined below.

Total PriceSavingsFree Gel
1 month$60N/ANo
2 months + 2 month free$120$120Yes (1)
3 months + 3 month free$180$180Yes (1)
8 months + 4 month free$455$265Yes (4)

Most other male enhancement products offer a one-, three-, and five- or six-month supply option, with only a few extending out to a year. Viasil happens to be one of the few who offer the 12-month package. What makes it a bit odd, though, is that the 12-month package results in a higher per-month cost, effectively, compared to the four- or 6-month bundles.

Almost every male enhancement product we regard as potentially worth trying has come to offer free shipping on all ordering tiers. With Viasil, it used to be that you could only get free shipping on bulk orders, but now the company has joined the crowd and offers free shipping on all orders to the USA, UK, or Canada. Perhaps they adapted due to a realization that the shipping charge was scaring off potential one-month customers at a greater rate than it was driving purchases up the tier structure.

100-day money-back guarantee

One of the things that makes Viasil a fair value is the way the company has structured its money-back guarantee. It gives you three months to try the product and decide if it’s right for you. If not, you can get a full refund minus any shipping charges you may incur. Some similar products offer shorter guarantees or only refund you for unopened products, but Viasil gives you a refund for all the boxes you order, regardless of their status. It still isn’t the best guarantee among male enhancement pills (that title belongs to Performer 8’s lifetime guarantee), but it’s better than most.

FAQ about Viasil

Alternatives to Viasil

Given how important sexual health is to most men, there seems to have always been a focus on medications and interventions that can maximize a man’s virility. And with ED being such a common ailment among men, it’s no surprise that there are so many pills, tools, and techniques out there claiming to rescue men from the brink of sexual misery.

Knowing where to start can be a challenge. We’ve covered this task for a handful of product categories in great detail, including guides to male enhancement pills, penis pumps, and online prescription services for ED and premature ejaculation. If a stranger contacted us and asked us to make as simple a recommendation as possible with no context and little nuance, we’d likely direct them towards prescription treatment first, especially considering the superior amount of research and real-world experience associated with them. Viasil likely wouldn’t end up getting included in that recommendation.

So, let’s take a look at some viable alternatives to Viasil if you want to take in the full breadth of your options before making a decision.

Male enhancement pills

We’ll start with male enhancement pills, the category to which Viasil belongs. Viasil is in the higher price range of similar supplements for ED and sexual wellness. You can find comparable products starting at about $40, with some topping $70 per bottle.

Many male enhancement pills contain similar ingredients as those seen in Viasil, but they often boast larger doses. Some of the ingredients you don’t see in Viasil have a fair bit of positive research behind them as well, like the ashwagandha in our top pick among male enhancement pills, Performer 8.

If you want to get a sense of the greater male enhancement pill landscape, check out our comprehensive guide. Here are a few highlights:

  • Performer 8 is our best overall pick, thanks to generous doses of zinc and ashwagandha to help boost testosterone. It also comes with a lifetime guarantee.
  • Extenze is our top budget pick if cost is your one and only concern. However, several athletic organizations ban DHEA, one of its main ingredients.
  • Semenax is our top male enhancement pill recommendation for men looking to bolster their fertility.

As an umbrella category, male enhancement pills also encompass volume pills, which put their focus on fertility and semen volume, and testosterone boosters, which have less to do with blood flow to the penis and more to do with stimulating testosterone production in the testes.

Prescription ED medication

Many of the men looking into male enhancement pills are dealing with some form of ED, even if it’s relatively mild. There’s no shame here, as ED affects roughly a third of all men and a solid 25% under the age of 40. With numbers like that, it’s no wonder the pharmaceutical industry poured so much money into the research and development of drugs like Viagra and Cialis.

But those aren’t the only drugs available to treat ED, and there are generic forms of many ED medications that have brought their prices down significantly in recent years. The ED medications you’ll find from our preferred sources include:

  • Viagra
  • Cialis
  • Stendra
  • Sildenafil (generic for Viagra)
  • Tadalafil (generic for Cialis)
  • Vardenafil (generic for Levitra and Staxyn)
  • Apomorphine

Add to that the relatively young revolution in telehealth, and you find an environment in which you can get a prescription for ED medications without ever leaving the house and have it shipped to your door directly.

There are some shady companies out there offering poorly made generic copies of popular ED medications, and we advise you to avoid such companies at all costs. In our research, we’ve uncovered a handful of great sources for ED medications, especially for men without insurance or those who want to enjoy as much privacy as possible in obtaining their drugs.

Here’s a quick look at our favorite online providers for ED medication.


Bluechew delivers its product in a novel chewable tablet instead of a pill you have to take with water. You can order sildenafil, tadalafil, or vardenafil through their system for some of the lowest prices around. We typically advise men to start here for both the low cost and the convenience of the tablets.


Hims is the only provider among our top picks to offer Stendra, and the pricing is pretty favorable. Compared to sildenafil and tadalafil (both of which Hims carries), it does seem expensive. Because Hims also offers treatment for hair loss, premature ejaculation, and more, it could prove a one-stop-shop for many men.


Roman is a lot like Hims in that the company provides multiple men’s health services. Its ED medication costs tend to be just a hair higher than Hims’, but we recommend Roman as a place to go if you suspect your sexual health issues stem from low testosterone. Roman offers a two-part testosterone test and ongoing prescription treatment and retesting if you need it.


Rugiet Ready is a rare combination product containing sildenafil, tadalafil, and apomorphine. There is evidence to suggest a sildenafil/tadalafil combination might be more effective than either in isolation, but the inclusion of apomorphine is something of a wild card. Like Bluechew, Rugiet delivers its medications in a novel format, specifically as a sublingual lozenge.

Penis pumps

Penis pumps aren’t something we would typically recommend to a man who’s just begun to experience ED issues and doesn’t know where to turn. But if you genuinely want to avoid prescription drugs and don’t like your odds with less-tested supplements, pumps might be a good option. They’re also a common starting point for men who have lost size or function in the penis after a radical prostatectomy.

That last point doesn’t mean that penis pumps can make your penis larger. Men who undergo radical prostatectomies sometimes have their penises recede into their bodies somewhat. It’s a disconcerting phenomenon, but studies into penis pump efficacy have shown a tendency for the therapy to return such men’s penises to normal size and function.

The trouble with penis pumps compared to supplements or prescriptions is the inconvenience. It takes time for a pump to create an erection by pulling blood into the penis. The process can be quite uncomfortable, and while some models let you use water to increase the comfort level, that means you have to use them in the shower or risk making a significant mess.

Still, penis pumps serve a particular niche, and they serve it well. Our complete guide gets into the nuances of a handful of models, but the most commonly recommended brand throughout our piece is Bathmate. Bathmate pumps can be used with or without water, and they boast some of the best build quality around.



Innerbody uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read our editorial process to learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.

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