Trenorol Review (2024 Upd) Best Alternative to Trenbolone?

Benedict Ang, CPT, PN1-NC
Published by Benedict Ang, CPT, PN1-NC | Staff Writer & Senior Coach
Last updated: December 20, 2023
We personally test every product featured in our reviews and guides. By ordering products anonymously and getting a group of independent testers, we are able to get first-hand experience and provide data-driven recommendations. Learn more.

A while back, CrazyBulk came up with a natural and legal steroid for bulking called Trenorol.

I didn’t care much for it at the time, but upon hearing my colleagues got amazing results from it over and over, I decided to dive deep into the research and test it out.

So, I teamed up with other fitness trainers in TotalShape along with some of our clients, and we did some thorough testing over eight weeks time.

We’ve compiled and presented all of our most important data in this Trenorol review.

What Is Trenorol?

Close up image of Tenotrol

Trenorol is a supplement by CrazyBulk designed for athletes and bodybuilders to promote muscle growth and increase strength and stamina. It can help you reduce body fat percentage while preserving lean muscle mass.

Trenorol is made from all-natural ingredients combined to safely mimic the effects of the illegal steroid Trenbolone.

 "Our supplements are designed to help you build muscle mass, increase strength, and improve your endurance without the side effects of the illegal steroid Trenbolone."

- Steward Lochrie, CrazyBulk's CEO

Suited for Men and Women

Crazybulk Trenorol

CrazyBulk Trenorol

Rated With Total Shape's Scoring System


How Does Trenorol Work?

Trenorol works by stimulating the production of red blood cells (erythrocytes) in your body for better blood flow. Erythrocytes are responsible for carrying oxygen to your muscles, which is essential for rapid muscle growth and endurance.

Trenorol is designed to increase nitrogen retention in your muscles as well, which is another important factor in muscle building [1]. Nitrogen is also a key component of protein, which is the building block of muscle tissue.

What I like about Trenorol is that it comes in capsule form. The recommended dosage is three capsules per day with water approximately 45 minutes before your workout.

It took us about two weeks to see the first significant results.

What Are the Ingredients in Trenorol?

The ingredients in Trenorol include beta-sitosterol, nettle leaf extract, Samento inner bark, and pepsin.

I spent some time discussing Trenorol ingredients with our resident dietician to make sure that you understand what they actually bring to the table.

Trenorol contains the following:

  • 1Beta-Sitosterol: According to a study in the National Library of Medicine, this plant sterol has been shown to increase testosterone levels, which can lead to increased muscle mass and strength [2]. The ability of beta-sitosterol to increase testosterone levels makes it a key ingredient in Trenorol.
  • Nettle leaf extract: It is rich in minerals and vitamins that are essential for muscle development. It also acts as an anti-inflammatory agent, which can help reduce soreness after your workout [3].
  • Samento inner bark: This herb, also known as the cat's claw, has been used for centuries in traditional medicine to treat a variety of conditions. According to a study from the University of Chicago, this ingredient may boost the immune system and improve cognitive functions [4].
  • Pepsin: This digestive enzyme is responsible for breaking down proteins into amino acids, which are the building blocks of muscle tissue [5]. It does this by breaking down the bonds between the amino acids, which makes them easier to absorb after each meal when this natural supplement is taken with protein-rich foods.

"While not all peptides have been identified as substrates for pepsin… the main physiologic role of this enzyme appears to be the digestion of proteins in the stomach."

- Eric D. Wills, Editor

What Are the Benefits of Trenorol?

Man and woman after taking tenotrol

The benefits of Trenorol include increased strength and muscle growth, accelerated recovery time, and increased energy levels.

Based on my research, I noticed the following benefits after using Tenorol.

1. Increased Power and Strength

Trenorol is intended to increase the amount of oxygen carried to your muscles, as well as increase testosterone production, all of which should help you lift heavier weights and train for longer periods of time.

My clients and I definitely noticed a difference in our strength output after a few weeks of use.

2. Reduced Recovery Time

Trenorol's claimed ability to increase the amount of oxygen carried to your muscles should also help reduce recovery time after intense exercise. This is because oxygen is essential for the repair and regeneration of muscle tissue.

While rigorous research is definitely needed, in our testing, Trenorol helped reduce muscle recovery time by up to 50% for some of my colleagues.

3. Muscle Growth and Weight Loss

In addition to its support for gaining lean muscle mass, Trenorol should also help you lose body fat. By increasing free testosterone in the red blood cells, Trenorol works to help your body burn fat for energy [6].

This feature is especially beneficial for people who are trying to lose weight and gain muscle mass at the same time, and it could potentially improve sexual health as well.

Potential Side Effects

There have been no reports of serious side effects to taking Trenorol. It's generally considered safe, thanks to its natural and carefully selected ingredients. However, we also have to take into account the fact that everybody reacts differently to dietary supplements.

During our research, we did come across a few side effects that have been reported by users, and we also experienced some of them ourselves:

  • Headaches: This is the most common side effect that has been reported. Headaches are usually caused by dehydration, so it's important to make sure you're drinking plenty of water when taking Trenorol [7].
  • Nausea: Some of my clients have reported feeling nauseous after taking Trenorol. This is usually due to the fact that their digestive tracts are not used to the highly concentrated extracts that Trenorol contains.
  • Restlessness: A few colleagues, including myself, have reported feeling restless after taking Trenorol. This is most likely due to the fact that Trenorol contains a good amount of caffeine. If you are sensitive to caffeine, it's best to start with a lower dose and increase it gradually.

The side effects of Trenorol are relatively mild and should not be a major cause for concern. With that said, it's always best to speak to your doctor before starting a new supplement, especially if you have a medical condition or are taking medication.

  • A legal alternative to anabolic steroids
  • No needles or prescriptions required
  • Safe and natural ingredients to help with protein synthesis and immune system
  • 60-day money-back guarantee
  • Only available for purchase online

How It Compares to Other Supplements

How It Compares to Other Supplements

We compared Trenorol to the other three leading competitors, including two products included in the CrazyBulk Bulking Stack, to see what makes it different.


Crazy Bulk offers a safe and effective alternative to Dianabol in D-Bal.

D-Bal contains a simple yet proven formula to boost testosterone production and muscle growth.

One key ingredient in D-Bal is 200 mg Ashwagandha, which studies prove increases muscle mass and strength. Trenorol approaches things differently and excludes Ashwagandha from its formula [8].

This testosterone-boosting supplement also includes 800 mg of methylsulfonylmethane (MSM), which our dietitians said may help reduce muscle swelling and speed up recovery times [9].
Another ingredient essential for muscle growth is vitamin D3, which D-Bal contains and Terenorol does not. After discussing D-Bal’s formula with our dietitians, we came to the conclusion that it contains a formula with solid ingredients that may help with bulking.

I personally tested D-Bal with our group of volunteers and experienced a noticeable improvement in recovery time.


DecaDuro is another all-natural supplement that derives its name from an illegal substance, this time Deca-Durabolin, a favorite among bodybuilders.

DecaDuro’s formula maximizes nitrogen retention, protein synthesis, and red blood cell production for strength and muscle gains by including l-arginine and l-citrulline [10].

Additionally, unlike Trenorol, DecaDuro includes acetyl-l-carnitine to support muscle mass growth [11].

Most in our test group experienced a noticeable difference in muscle mass over several weeks of testing and reported no adverse side effects. I was also involved and found I had less joint pain, which often occurs after my intense workouts.

I placed an order directly on the official website and received free shipping, and the order arrived in just a few days. Additionally, there are tons of options to stack these supplements to tailor to your fitness goals.


TestoPrime testosterone booster contains a lineup of natural ingredients like D-aspartic acid, fenugreek, and vitamins B5 and B6 that have a good reputation for supporting fat loss and boosting testosterone levels, all with minimal side effects [12].

Like some other similar muscle-building supplements, TestoPrime includes Ashwagandha, known for reducing inflammation, improving cognitive abilities, and aiding in nutritional digestion [13].
During our trial period, most in our group saw noticeable improvements in energy levels and mood, and those results were supported by overwhelmingly positive online reviews.

However, some users, myself included, did experience minor digestive upset and heartburn that our dietitians attributed to the pomegranate extract and garlic in the formula.

TestoPrime’s pricing is on par with other testosterone boosters, and like many other supplements I order for testing, there was a discount for bulk purchases and free shipping.

Where To Buy Trenorol?

Buy Trenorol on the Crazy Bulk website. A bottle of 90 capsules (a one-month supply) costs $64.99.

However, you can save money by purchasing multiple bottles at once. For example, two bottles cost $129.99, and you get an additional bottle, including free shipping.

Suited for Men and Women

Crazybulk Trenorol

Crazybulk Trenorol

Rated With Total Shape's Scoring System


Other User Testimonials

Other User Testimonials

As always, we do not take the manufacturer's word for it and like to see what others are saying. Trenorol has been getting some great reviews, with users reporting outstanding results.

"I've only been using Trenorol for two weeks and I've already gained three pounds of muscle. I'm also seeing a significant increase in my strength and endurance."

- Sam on Reddit

"Trenorol is the real deal. I've been using it for four weeks and have gained eight pounds of muscle. My strength has also increased significantly."

- J_train on Facebook

"While I can't speak for everyone, I will say that Trenorol worked very well for me. I gained 15 pounds of muscle in eight weeks and my strength increased tremendously."

- Larry on Quora


Is Trenorol Legal in USA?

Yes, Trenorol is legal in the USA. It is a safe and natural alternative to anabolic steroids.

Is Trenorol Safe?

Yes, Trenorol is safe, and there have been no reports of serious side effects. However, as with any supplement, it's always best to speak to your doctor first before using it.

When Should I Take Trenorol?

You should take Trenorol three times per day with meals.

Can I Take Trenorol with Other Supplements?

Yes, you can take Trenorol with other supplements. Its natural ingredients are compatible with most other bodybuilding supplements. However, if you are taking medication, it's always best to consult with a medical professional.

Our Verdict on Trenorol

Overall, it seems that Trenorol is living up to the hype and delivering some good results.

In our extensive testing and research, Trenorol proved to be a safe, legal, and effective alternative to the illegal anabolic steroid Trenbolone.

It supported most of my clients in building muscle mass, losing fat, and increasing their strength and endurance.

However, as we always say, supplements are not a magic pill, and you will still need to put in the hard work in the gym if you want to see long-term results.

But if you're looking for a natural and effective way to improve your performance in the gym, we can safely recommend Trenerol as a tested and proven option.

We Recommend This Product

Crazybulk Trenorol

Crazybulk Trenorol

Rated With Total Shape's Scoring System

  • A legal alternative to anabolic steroids
  • No needles or prescriptions required
  • Safe and natural ingredients
  • 60-day money-back guarantee
  • Get the BEST PRICE until the end of April
  • Only available for purchase online
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About The Author

Benedict Ang, CPT, PN1-NC
Staff Writer & Senior Coach
Benedict Ang, CPT, PN1-NC is an ex-National Soccer player turned MMA and Kickboxing champion, with ACE CPT and PN1-NC certifications. His advice is rooted in education and experience, ensuring that readers receive scientific and battle-tested insights. His mission is to empower his clients and readers to realize their potential and become the best versions of themselves.
Learn more about our editorial policy
Dr. Kristy June Dayanan, BS, MD is an author with a BS degree from University of the Philippines and an MD from University of Perpetual Help System. Her ability to simplify medical science complexities and dietary supplement jargon for the average reader makes her a valued medical fact checker and reviewer.
Learn more about our editorial policy
Dr. Harshi Dhingra, MBBS, MD is a published peer-reviewed author and renowned physician from India with over a decade of experience. With her MBBS from Bharati Vidyapeeth and an MD from Rajiv Gandhi University, she actively ensures the accuracy of online dietary supplement and medical information by reviewing and fact-checking health publications.
Learn more about our editorial policy

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