Is Sylvester Stallone On Steroids?

TRT Trey

Last Updated August 28, 2022

TRT Trey

 August 28, 2022


Is Sylvester Stallone on steroids?

Then you’ve come to the right place. Inside, you’ll find the official breakdown of whether or not Sylvester Stallone has ever used gear before…

Sylvester Stallone is an American actor, producer, director, and screenwriter. He is most famous for his breakout roll in the 1976 film Rocky, as well as his leading role in other film franchises like Rambo and The Expendables.

Ever sense his lead role as the amateur boxer Rocky Balboa, people have wondered if Sylvester Stallone has ever used steroids. Is it really possible to build a physique like that while staying natural? Or did Sylvester use anabolic steroids to get ready for his iconic movie roles? Let’s find out!

Disclaimer: The contents of are for informational and educational purposes. We do not provide legal advice. Likewise, we do not provide medical advice, diagnosis, or treatment. Please consult your physician prior to consuming any over-the-counter supplements, like a natural testosterone booster, and/or getting a prescription for a pharmaceutical medication. Your access to is subject to our full disclaimer and terms of use.

Sylvester Stallone Stats

Age: 75 Years Old
Height: 5'10"
Weight: 185 lbs
Estimated Body Fat %: About 8 Percent
Nickname: “Sly”

What Are Steroids?

Steroids are chemicals, usually hormones that the human body naturally produces. They help your cells, organs, and tissues do their jobs. Bodybuilders and other athletes sometimes inject synthetic versions of steroids into their bodies to enhance their physical performance.

Anabolic steroids are man-made versions of the hormone testosterone. They are sometimes used by bodybuilders and professional athletes to speed up their recovery time and boost their overall athletic performance. Unfortunately, steroids have many dangerous side effects, which is why they are illegal in the United States and many other countries. However, they are still used by a large percentage of the global population.

A recent meta-analysis found that as many as 6.4% of all men in the world have used anabolic steroids before [1]. Another study found that 2.9–4.0 million Americans may have used anabolic steroids, with possibly one million of these having experienced anabolic steroids dependence [2].

So how do steroids work? Steroids raise endogenous testosterone production and other muscle-building hormones in your body. These hormones bind to your muscles and other tissues and trigger an increase in various muscle-building pathways.

Bodybuilders and other athletes sometimes use steroids because of their ability to build muscles and enhance their physical performance. Recent studies found that anabolic steroids enhance total muscle mass, muscle strength, power, and cardiovascular endurance [3, 4].

Although steroids have many benefits, they also have serious side effects, which can negatively impact the human body. A meta-analysis performed in 2021 found that steroids can cause adverse effects on your brain, cardiovascular system, muscular system, liver, urinary system, and reproductive system [5].

Another recent meta-analysis showed evidence of an increase in self-reported aggression in healthy males following AAS administration [6].

Because of their side effects, anabolic steroids should be used with extreme caution.

Sylvester Stallone

Signs Of Steroid Use

What are the most common signs of steroid use? The truth is steroids have many side effects.

Here are some of the most common signs of long-term steroid use:

  • Pronounced Jawline
  • Larger Than Average Head
  • HGH Gut
  • Incredibly Jacked Physique
  • Underdeveloped Legs

Let’s take a closer look at each of these side effects.

Many long-term steroid users have a very large, pronounced jawline. This comes from long-term testosterone and growth hormone use. Both of these hormones have been shown to make the jaw larger and more masculine in men.

Another common side effect is a large, protruding stomach. This is sometimes called a “HGH gut” because it is caused by long-term growth hormone use. Even when someone is lean, their stomach sticks out in front of the rest of their body.

Other common side effects include a larger than average head, an incredibly jacked physique, and legs that are very small compared to their upper body.

Of course, having one of these signs does not automatically mean that someone is using steroids. However, if they have all five, or other obvious signs of steroid use, then it is very possible they are using performance enhancing drugs.

Is Sylvester Stallone On Steroids?

Is Sylvester Stallone really natural? Or did he use anabolic steroids to take his acting career to the next level? Let’s look at the facts before jumping to any conclusions.

Sylvester Stallone has the following signs of long-term steroid use:

  • Completely Shredded
  • Insanely Muscular
  • Rapid Body Transformations
  • Super Masculine Jawline

The most obvious sign that Sylvester Stallone might be using steroids is his incredibly shredded physique. Sylvester stays completely ripped year-round, with six-pack abs and very little body fat.

Sure, it’s possible for a natural bodybuilder to get ripped at the end of a grueling diet. But can you really stay ripped year-round as a natural athlete?

For most drug-free athletes this is extremely difficult, as testosterone and other muscle-building hormones start to decrease if you stay shredded for extended periods of time.

Another dead giveaway is his insanely muscular physique.

Sylvester Stallone got into incredible shape for his role as the character Rocky Balboa in the blockbuster film Rocky. Sylvester didn’t just look like a gifted boxer – he was so big and muscular that he looked like a real-life super hero!

Sylvester was even more jacked for his role in the Rambo films. Most natural bodybuilders train for 5, 10 or even 20 years and never come close to looking as jacked as Sylvester did in these films.

Sylvester was also known for his rapid body transformations to get ready for his movie roles.

He would absolutely transform his physique and add tons of muscle mass before he started filming for his Rocky and Rambo movies. Even in his 70s, Sylvester is able to transform his physique in a very short period of time.

Sylvester Stallone has never admitted to using steroids. However, he has admitted to using hormone replacement therapy. He takes testosterone and growth hormone injections to keep his body in peak physical condition and to slow down the aging process.

“Everyone over 40 years old would be wise to investigate it because it increases the quality of your life. Mark my words – in 10 years it will be over the counter.”

Is hormone replacement therapy really the same thing as taking anabolic steroids? They are similar, but slightly different.

Hormone replacement therapy is used to keep your testosterone (and growth hormone) levels at the high-end of the normal range, while anabolic steroids are used to blast your hormones to supra-physiological levels.

Sylvester Stallone has only admitted to using hormone replacement therapy, but based on all the evidence, we think the odds are extremely high that he used anabolic steroids to get ready for his Rocky and Rambo movies.

Sylvester Stallone Before And After Steroids

Sylvester Stallone has many of the usual signs of long-term steroid use, such as an insanely muscular physique and ripped six-pack abs. But did he always look this way?

The truth is, Sylvester Stallone looks completely different in his Rocky and Rambo movies compared to before he started acting. He gained a ton of muscle mass for these roles, and came in absolutely shredded. It’s hard to believe that an actor could transform their physique this quickly without the use of performance enhancing drugs.

Though Sylvester has never admitted to using steroids, there’s a very clear difference in Sylvester’s physique between the first and fifth Rocky movies—increasing rumors about whether or not he used steroids to juice up.

Sylvester Stallone steroids before and after

Legal Steroid Alternatives?

Sylvester Stallone may have used anabolic steroids to prepare for his blockbuster films like Rocky and Rambo, but that doesn’t necessarily mean they’re a good idea for everyone.

Anabolic steroids have many dangerous side effects and should be used with extreme caution.

Fortunately, there are many “legal steroid alternatives” that deliver similar results as steroids, but without any of the harsh side effects.

One of the most popular legal steroid alternatives on the market today is called ecdysterone.

Ecdysterone is a natural substance found in many plants, like spinach and quinoa. In recent years bodybuilders have started supplementing their diets with extra ecdysterone, as new research shows it has a powerful impact on muscle growth.

Some studies show that ecdysterone can increase protein synthesis by as much as 20%, while others demonstrate that ecdysterone is as effective as many anabolic steroids, including dianabol!

Best of all, ecdysterone is a natural substance, which means there are virtually zero long-term side effects.

If you are interested in getting started with ecdysterone, then we strongly recommend the company Huge Supplements. They manufacture all of their products right here in the United States, so you know you are getting the highest quality ecdysterone that money can buy.

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Testosterone Therapy vs. Steroids

Testosterone replacement therapy is a great alternative to anabolic steroids for men who want to optimize their natural testosterone levels.

The primary goal of testosterone replacement therapy is to raise men’s testosterone levels to the high-end of the normal, healthy range. This is completely different from anabolic steroids, which are used to raise the muscle-building hormones to extremely high levels.

Research shows that men who use testosterone therapy experience increased energy levels, improved muscle mass, greater endurance, and superior sexual performance [7, 8, 9].

There are many ways to get started with TRT. However, one of our favorite options is to use a trusted online provider like Fountain TRT.

Founded by a board certified urologist with decades of experience, Fountain TRT is one of the most trusted names in men’s health.

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Sylvester Stallone And Steroids | Verdict

What’s the verdict – does Sylvester Stallone use steroids?

We believe the odds are extremely high that Sylvester Stallone used anabolic steroids during his Hollywood acting career.

Sylvester had many signs of long-term steroid use, such as an incredibly muscular physique, and extremely rapid body transformations.

Sylvester completely changed his physique to get ready for his breakout role in the 1976 film Rocky. In fact, he went from looking like a “regular Joe” to a world-class boxer in just a few weeks! Sylvester got even bigger for his role in Rambo and many other movies.

Today Sylvester uses a doctor-supervised hormone replacement therapy protocol with testosterone and human growth hormone to maintain his ripped physique.

It’s hard to say if this counts as steroids, but the odds are very high that Sylvester was using performance enhancing drugs during his acting career.


  1. Sagoe D, Molde H, Andreassen CS, Torsheim T, Pallesen S. The global epidemiology of anabolic-androgenic steroid use: a meta-analysis and meta-regression analysis. Ann Epidemiol. 2014 May;24(5):383-98. doi: 10.1016/j.annepidem.2014.01.009. Epub 2014 Jan 30. PMID: 24582699.
  2. Pope Jr HG, Kanayama G, Athey A, Ryan E, Hudson JI, Baggish A. The lifetime prevalence of anabolic‐androgenic steroid use and dependence in Americans: Current best estimates. The American journal on addictions. 2014 Jul;23(4):371-7. doi: 10.1111/j.1521-0391.2013.12118.x. PMID: 24112239.
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  7. Al-Zoubi RM, Yassin AA, Alwani M, Al-Qudimat A, Aboumarzouk OM, Zarour A, Al Ansari A. A systematic review on the latest developments in testosterone therapy: Innovations, advances, and paradigm shifts. Arab J Urol. 2021 Aug 8;19(3):370-375. doi: 10.1080/2090598X.2021.1959260. PMID: 34552788; PMCID: PMC8451690.
  8. Kim SH, Park JJ, Kim KH, Yang HJ, Kim DS, Lee CH, Jeon YS, Shim SR, Kim JH. Efficacy of testosterone replacement therapy for treating metabolic disturbances in late-onset hypogonadism: a systematic review and meta-analysis. Int Urol Nephrol. 2021 Sep;53(9):1733-1746. doi: 10.1007/s11255-021-02876-w. Epub 2021 Jun 5. PMID: 34089171.
  9. Lunenfeld B, Mskhalaya G, Zitzmann M, Corona G, Arver S, Kalinchenko S, Tishova Y, Morgentaler A. Recommendations on the diagnosis, treatment and monitoring of testosterone deficiency in men. Aging Male. 2021 Dec;24(1):119-138. doi: 10.1080/13685538.2021.1962840. PMID: 34396893.
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