Testosterone replacement therapy (TRT) has gone fully mainstream. What started as gym-circle talk is now openly discussed on podcasts, in interviews, and even by public health officials. For this 2026 update, we have split the list into two clear sections: public figures who have confirmed or publicly discussed their own use of TRT or hormone therapy, and the names that dominate online speculation but have never confirmed anything. We label each one clearly, with a source for every entry, so you know exactly which is which.
Confirmed: On the Record About TRT or Hormone Therapy
1. Andrew Huberman
The Stanford neuroscientist and podcast host confirmed in early 2026, during his interview with Dorian Yates, that he has been on low-dose TRT since age 45, at around 125 mg per week. The admission made waves given how much of his brand is built on supplements and protocols, but it made him one of the most prominent science communicators to go on the record about hormone therapy.
2. Joe Rogan
Still the most influential TRT advocate on the planet. Rogan has been on the therapy for well over a decade and discusses it regularly on The Joe Rogan Experience, crediting it with better energy, recovery, and muscle retention into his late 50s. He has even talked about getting his stepdad on TRT.
3. Sylvester Stallone
Stallone has been open since his 2008 Time magazine interview about using prescription testosterone and HGH, famously saying that everyone over 40 would be wise to look into it. Now pushing 80, he remains one of the longest-running celebrity examples of hormone therapy done under medical supervision.
4. Alan Ritchson
The Reacher star discovered TRT after the brutal season one shooting schedule left him burnt out with a shoulder injury and, in his words, ravaged hormones. His doctor recommended it ahead of season 2, and Ritchson has since become a vocal advocate, telling Men’s Health he recommends it especially for men in their forties and above.
5. Robbie Williams
The British pop star may be the most famous TRT patient of all. A Hollywood doctor famously told him he had the testosterone of a 100-year-old man while he was battling depression and fatigue. Williams credits doctor-supervised TRT with restoring his energy, mood, and physique, and continues to champion men’s health openly.
6. Robert F. Kennedy Jr.
After his viral Gold’s Gym workout videos, RFK Jr. confirmed he is on a doctor-prescribed anti-aging protocol that includes testosterone replacement, while stressing that he does not take anabolic steroids and that his TRT is bioidentical. He has also made declining testosterone and sperm counts a centerpiece of his public health messaging.
7. Kate Winslet
A reminder that TRT is not just for men. The Oscar winner revealed on the How To Fail podcast that testosterone replacement therapy revitalized her libido in her late 40s, and she has encouraged women to talk openly about hormone health as they age.
8. Dax Shepard
The Armchair Expert host has been candid about using testosterone injections and how they affected his physique, mood, and energy, including admitting his early heavy experimentation was more than he needed. He frames it as part of a broader men’s health conversation and has been transparent about adjusting doses under medical supervision.
9. Frank Grillo
Known for The Purge, Kingdom, and a string of gritty action roles, Grillo has said plainly that he takes one shot of testosterone a week after discovering low levels six years ago, and that PED use is common in Hollywood. He credits TRT with better sleep, recovery, and mood while staying camera-ready at 60.
10. Dan Bilzerian
The social media personality and poker player has spoken about using testosterone to maintain his muscular build and high-energy lifestyle, discussing it with Joe Rogan and treating TRT as a routine part of keeping up with his training.
11. Dorian Yates
The six-time Mr. Olympia has spoken about age-related hormone support to legally maintain muscle mass and health after his bodybuilding career. His 2026 sit-down with Andrew Huberman, where Huberman made his own TRT admission, put Yates back at the center of the conversation.
12. Mickey Rourke
The actor and former boxer denied using PEDs for his Oscar-nominated bulk-up in The Wrestler for years, but in 2024 he finally admitted on Instagram that he did use them, calling it a decision he regrets and one that took years to recover from. A confirmed case, though a cautionary one rather than an endorsement.
13. Charlie Sheen
Sheen admitted to Sports Illustrated that he took steroids for six to eight weeks to boost his athleticism while filming Major League, one of the earlier open admissions of hormone use in Hollywood.
14. Vitor Belfort
The former UFC champion competed with a sanctioned Therapeutic Use Exemption (TUE) for TRT and went on the greatest run of his career while on it, going 10-2 over 12 bouts while approaching 40. “TRT Vitor” became a meme for a reason. Exemptions were phased out in 2014, but Belfort remains the poster child of the TRT era in combat sports.
15. Chael Sonnen
Never shy with a mic, Sonnen publicly acknowledged being on TRT and defended it openly during his UFC run, even after his elevated testosterone ratio made headlines following the first Anderson Silva fight. He remains one of the most transparent voices about what athletes actually did under commission oversight.
16. Dan Henderson
A legend of the sport, Henderson was among the roughly 15 MMA fighters competing with approved TUEs for TRT under the athletic commission rules of the era, and has talked about using it to extend his career at the highest level until his retirement at 46.
17. Nate Marquardt
Another veteran who acknowledged TRT use with a medical exemption, granted by New Jersey in 2011 during his Strikeforce run, where he won the welterweight title. His case drew heavy commission scrutiny and is often cited as a turning point in how quickly regulations around TRT shifted in professional sports.
Alleged: The Names Everyone Speculates About (Unconfirmed)
To be clear: none of the people below have confirmed using TRT, and several have credited their physiques entirely to training and diet. What follows is a summary of the speculation that circulates online, not a claim that any of them are on hormone therapy.
18. Jeff Bezos
The Amazon founder’s transformation from lanky bookseller to jacked space cowboy is probably the single most discussed physique in TRT circles. Entire Reddit threads, like this one on r/TRT and this one on r/nattyorjuice, debate what he may or may not be on. Bezos himself has never commented, so it remains pure speculation.
19. Dwayne “The Rock” Johnson
Johnson has admitted to trying steroids briefly at 18 or 19, which keeps the rumor mill running about what maintains his build in his 50s, with Joe Rogan among those publicly calling on him to come clean. He has never confirmed TRT or any current hormone use, and credits a legendary training and eating regimen.
20. Hugh Jackman
The Wolverine transformations sparked years of natty-or-not debate. Jackman has consistently and explicitly denied using steroids, attributing everything to training, an ocean of chicken, and preparation time. He belongs on the speculation list only because the internet refuses to drop it.
21. Chris Hemsworth
The Thor star’s claim of putting on 40 pounds of muscle in five months made him a central figure in the fake-natty debate, since experts say natural gains top out around 8 to 15 pounds a year. Hemsworth has not confirmed any hormone therapy and credits his trainers and a famously enormous meal plan.
22. Henry Cavill
The Superman star’s dense, consistent muscle mass keeps him a fixture in online speculation. Cavill has publicly refused steroids and HGH, reportedly turning them down when his own trainer raised the question before Man of Steel, and even asked for minimal digital touch-ups.
23. Mark Wahlberg
Famous for extreme role-to-role body transformations and 4 a.m. workouts, Wahlberg is a perennial name in TRT speculation, and some TRT industry outlets claim he has discussed hormone therapy as part of his regimen. Wahlberg himself has never directly confirmed testosterone therapy.
24. Mel Gibson
Gibson’s lean, muscular look in his late 60s has been the subject of media reports linking him to TRT and anti-aging treatments, but he has never publicly confirmed hormone therapy himself.
25. Arnold Schwarzenegger
Arnold has always been open about his steroid use during his competitive bodybuilding days, when it was legal. Whether he uses TRT today is a common assumption in bodybuilding circles, but he has not confirmed any current hormone therapy.
26. Zac Efron
His Baywatch physique launched a thousand forum threads. Efron has confirmed only diuretics and a brutal regimen, calling that shape unrealistic and unsustainable and saying he never wants to be in it again. He has never confirmed hormone use, and the speculation remains just that.
27. Jason Momoa
The Aquaman star’s size and conditioning keep him in the natty-or-not conversation, though he has never confirmed TRT and is known for an unconventional, activity-heavy training style.
28. Terry Crews
Shredded and energetic well into his late 50s, Crews attracts constant speculation but has flatly denied ever taking steroids, calling himself 100 percent natural and crediting decades of consistent training, intermittent fasting, and discipline.
Notice some names missing from previous versions of this list? We trimmed the entries where the “speculation” was really just one blogger’s guess, think Seal, Tim McGraw, or Jeremy Piven, and kept the names with genuine, widespread online discussion. Looking fit at 50 is not a confirmation, and we would rather keep this list credible than long.
Curious what getting on TRT actually involves? Start with our guide on how to get prescribed testosterone in different countries. And if you would rather support your levels naturally first, check out whether fasting increases testosterone and our breakdown of the Ray Peat diet. Know of another public figure who has gone on the record about TRT? Contact us and let us know.
