If enhancing muscle growth, cutting fat, and boosting energy, strength, and power are aspects of your fitness goals, you might have browsed the supplements aisle a few times, wondering whether muscle-building products work. If this describes you, you’re far from alone. After all, the pre-workout supplements market is worth over $12 billion, so something must be compelling.
Can these products really increase athletic performance? Are they safe? And do they have side effects?
We recently tested Trenorol, an all-natural bodybuilding supplement that aims to mimic the positive results of the steroid Trenbolone. We wanted to see if it works, how it works, and why it works. In our review below, you’ll learn the pros, cons, and all pertinent details about Trenorol to see if this supplement is right for your body and workout goals.
- Safe, legal, and steroid-free
- Enhances athletic performance
- Accelerates muscle gain
- Aids faster fat burning
- 60-day money-back guarantee
- No sugar, artificial sweeteners, colors, or flavorings
- Excellent ingredient transparency
- Free shipping worldwide
- Not vegetarian-friendly (contains dairy)
- May increase testosterone production
- Pricier than some options
As long as you behave responsibly with supplementation and speak with your trusted healthcare provider, we can recommend Trenorol for people looking to achieve peak physical performance without the adverse side effects of illicit steroids. Trenorol provides the same boosted energy, power, strength, and fat-burning abilities of Trenbolone, but without needles, prescriptions, or legal repercussions. This effective pre-workout supplement is also transparent about its ingredients, offers a 60-day money-back guarantee, and provides free shipping worldwide.
A legal and safe alternative to Trenbolone, Trenorol can help enhance your athletic performance and pack on lean muscle mass.
This pre-workout supplement might be the solution for athletes looking to take their performance to the next level. Enjoy free shipping and a 60-day money-back guarantee.
Over the past two decades, Innerbody Research has helped tens of millions of readers make more informed decisions involving staying healthy and living healthier lifestyles.
We extensively test each health service or product we review. We try our best to give you, our readers, an unbiased exploration of at-home health options, free of marketing jargon or gimmicks. We evaluate products and services based on their adherence to quality, the latest medical evidence and health standards, and a simple question: would we buy the product or service ourselves if it weren’t part of our job, and would we recommend it to family and friends?
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.
Trenorol is an all-natural pre-workout supplement geared toward bodybuilders, fitness buffs, and athletes. It mimics the effects of the illegal but effective steroid Trenbolone, offering benefits like:
- Rapid fat burning
- Reduced fatigue
- Increased strength and muscle mass
- Better physical conditioning
- Boosted recovery
Trenorol comes in capsule form, which you take three times daily before workouts. Unlike Trenbolone, Trenorol is not a banned substance and does not carry the side effects of steroid use, including male breast growth and decreased testicle size. It may, however, stimulate increased testosterone production.
The bodybuilding supplements manufacturer CrazyBulk produces Trenorol and many products for bulking, cutting, and increasing strength. It also sells supplements for female bodybuilders.
Founded in 2013, CrazyBulk aims to bring natural, legal alternatives to steroids into the spotlight and features sponsorships with pro bodybuilders, including Chris Tripp and Randy Smith.
Trenorol is an effective supplement for weight and fitness training, offering scientifically backed ingredients that help you work toward your peak body by improving nitrogen retention and enhancing protein synthesis.
Our testers experienced a significant increase in energy and power during strenuous workouts. It helped testers boost their strength and stamina during training and aided after-workout recovery. All of these effects are quite consistent with what many other customers report.
Trenorol will not bulk you up without the work, of course. But this supplement will give you the strength and energy to make those workouts more rigorous and demanding, ultimately leading to improved physical performance.
Trenorol emulates the effects of the steroid Trenbolone, which the DEA assigned as a Schedule III controlled substance based on its potential for abuse and psychological or physical dependence.
Bodybuilders illicitly use Trenbolone to promote increased muscle mass and reduce fat production, just as it does in livestock (for which its use is approved). However, anabolic steroids like Trenbolone can also cause many health problems, including:
- Impaired diastolic filling
- Atherosclerosis in the coronary arteries
- Mental health issues
- Higher mortality rate
- Sexual side effects
Unlike the steroid it emulates, Trenorol is apparently safe in addition to being effective and legal. It requires no prescriptions or injections and can be used during both bulking and cutting phases.
Trenorol contains just four active ingredients aimed at helping you build muscle mass and quickly convert fat to energy for more intense sessions and greater lean bulk. We’ll look at each of these ingredients below.
Beta-sitosterol (600 mg)
Beta-sitosterol is an abundant plant sterol found in beans, seeds, nuts, saw palmetto, and other botanicals. Studies have demonstrated B-sitosterol’s ability to decrease blood cholesterol levels and exhibit anti-inflammatory and analgesic properties. Trenorol promotes Beta-sitosterol as its primary ingredient based on its abilities to:
- Help metabolize cholesterol
- Improve blood flow
- Inhibit the transformation of testosterone to DHT
- Promote muscle growth
While many studies on Beta-sitosterol are animal-based, human studies have demonstrated its safety and effectiveness in treating benign prostatic hyperplasia and other issues. β-sitosterol effectively improves blood flow and oxygenation in the muscles, giving you more strength and power as you exercise.
Samento inner bark (300 mg)
Uncaria tomentosa, also known as cat’s claw or samento inner bark, is a woody vine native to South and Central America, where it has traditional medicinal use in treating several ailments.
Cat’s claw is a common ingredient in dietary supplements based on its potential health benefits, including:
- Improving insulin sensitivity and inflammation
- Treating fever and fatigue
- Easing muscle and joint aches
Cat’s claw appears safe when taken by healthy adults, although it may cause minor side effects like dizziness, headaches, or vomiting. However, readers should note that researchers have performed very few high-quality trials on cat’s claw, and no conclusive scientific evidence supports its use as a treatment for any condition.
Nettle leaf extract (300 mg)
Urtica dioica, also known as stinging nettle, has been used in traditional medicine for centuries. This wide-ranging plant is a rich source of terpenoids, carotenoids, and fatty acids. Stinging nettle shows potential as a treatment for many conditions and offers several health benefits, including:
- Protection against BPH (enlarged prostate) and prostate cancer
- Treatment for urinary tract and bladder infections
- Relief from joint pain and inflammation
- Anti-allergic histamine properties
- Anti-cancer and antioxidant properties
Pepsin (75 mg)
Pepsin is a digestive enzyme responsible for assisting in the breakdown of proteins. When we’re building strength, we need the protein we ingest to be easily digested and used to synthesize protein in our muscles. Pepsin’s role in Trenorol is to:
- Provide your body with amino acids, ensuring peak performance
- Aid in recovery by helping rebuild proteins in muscle
Trenorol is safe for most healthy adults. However, we recommend consulting with your doctor or dietician before beginning any new supplement to ensure it will work for you, your diet, and your fitness regimen. This is even more imperative if you suffer from any health conditions or are currently taking any medications.
No severe side effects are reported for any active ingredient in Trenorol. Still, some components may cause minor side effects. For instance, samento inner bark may cause dizziness, headaches, or vomiting in some people. Additionally, Trenorol may boost your body’s testosterone levels, so this product isn’t recommended for pregnant or nursing women.
Trenorol is only available for purchase from the CrazyBulk website. CrazyBulk does not provide subscription options, but you can earn significant savings by buying in bulk. When you purchase the three-bottle bundle, you get one bottle free, dropping your price per serving by almost a dollar. Since you’re protected by a 60-day money-back guarantee, we recommend the bulk option.
CrazyBulk supplies free worldwide shipping on all orders, and you’ll also receive a free downloadable fitness and nutrition guide with your order.
|Cost||Price per serving|
|Single Purchase (1 bottle)||$61.99||$2.07|
|Buy Bulk & Save (3 bottles)||$123.98||$1.38|
Is Trenorol a good value?
Trenorol is one of few pre-workout supplements promoting the effects of Trenbolone and containing B-sitosterol as its primary ingredient. Trenorol’s closest comparison is Tren 75, including finabolon as its main component. We believe Trenorol is a better value based on its ingredients and lower price.
Below, we’ve created a side-by-side comparison of Trenorol with other popular pre-workout supplements so you can get a better idea of where it fits in with the competition. Note that all prices in this chart reflect single purchases and do not consider subscription or bulk discounts.
|30-day supply||Price per serving|
|Purity Products Muscle Accelerator||$44.95||$1.50|
|Transparent Labs BULK||$49.99||$1.67|
|NITROSURGE Pre Workout Supplement||$27.99||$0.93|
HSA, FSA, and health insurance
CrazyBulk does not accept HSA, FSA, or health insurance payments for its products.
CrazyBulk specializes in supplement stacks, selling these bundled products at a discounted cost. Some of CrazyBulk’s most popular stacks include:
Bulking Stack ($179.98)
The Bulking Stack includes Trenorol, Testo-Max, DecaDuro, and D-Bal, which work together to supercharge your workouts and promote rapid muscle growth, fat burning, recovery, and strength.
Cutting Stack ($184.98)
This Cutting Stack bundle contains Anvarol, Clenbutrol, Winsol, and Testo-Max. Together, these products promote a lean physique and boost fat burning while preserving the muscle mass you’ve built up.
Growth Hormone Stack ($239.98)
This bundle includes Testo-Max, DecaDuro, D-Bal, HGH-X2, and Clenbutrol to boost the body’s natural growth and testosterone production. It helps burn fat and build muscle while increasing energy and strength.
Female Cutting Stack ($122.98)
This bundle, featuring Clenbutrol, Anvarol, and Winsol, works to boost metabolism and fat burning, helping women bodybuilders train harder and achieve faster results.
We want to note that Clenbutrol isn’t the same thing as clenbuterol (an asthma medication used unsafely by bodybuilders). However, Clenbutrol contains bitter orange, which we do not recommend consuming for safety reasons.
At Innerbody Research, we customize our evaluation criteria depending on the type and nature of the health-related service or product. But in general, for health products and services, we have five broad areas that we explore in our evaluations, including:
Quality: How well does the company deliver its core service(s) to the customer? For testing services, does the company adhere to the latest and most advanced testing technologies and achieve a very high degree of accuracy? For non-testing telemedical or teletherapy services, is the quality of the service high enough that we would recommend it to loved ones without hesitation? If not, why not? For health products, does the product or device meet a high level of safety? Is it manufactured with high-quality standards? Has it – or have its ingredients – been subjected to studies that confirm effectiveness?
User-friendly: How intuitive and convenient is the service or product? Does the device, program, app, or website achieve a good degree of user-friendliness for its customers?
Value: Are you getting your money’s worth? Are there any hidden costs or charges? Does the company offer discounts?
Privacy: If health data is stored, will your data be stored securely? Are payments secure? Does a company market your information?
Customer support: Particularly in situations where ‘one size fits all’ doesn’t make sense, how well does the company help make the service or product ideal for you or address your individual needs?