Creatine Baldness Myth EXPOSED!

A single study of 20 rugby players, published in 2009, convinced millions of men that their creatine supplement was making them go bald — and the scientific record has spent 15 years trying to clean up that mess.

Quick Take

The 2009 study that started the creatine-hair-loss panic never measured hair loss — only a hormone called dihydrotestosterone (DHT)
The first randomized controlled trial to directly measure hair follicle health found zero effect from creatine on DHT or hair parameters after 12 weeks
Twelve additional studies examining creatine’s effect on testosterone have found no significant hormonal increases
A real gap remains: no trial has tested the high-dose loading regimen that triggered the original 2009 concern, leaving that specific scenario unanswered

How One Small Study Spooked an Entire Generation of Gym-Goers

Twenty college rugby players. A creatine loading phase. A 56% spike in DHT after seven days. That is the entire empirical foundation of one of the most persistent fears in sports nutrition. ^[1] The 2009 study that produced this finding never tracked whether a single hair fell out. It measured a hormone, not a follicle. But DHT is the androgen associated with male pattern baldness, and that biological plausibility was enough to launch a decade and a half of gym-floor anxiety, YouTube debunks, and supplement industry hand-wringing.

The mechanism people worried about is real in principle. DHT binds to androgen receptors in hair follicles and can cause follicle miniaturization in men who are genetically predisposed to androgenetic alopecia. ^[3] So the logic was not crazy. A rise in DHT, if sustained and if you carry the genetic risk, could theoretically accelerate hair thinning. The problem is that “theoretically could” and “demonstrably does” are separated by a chasm that the 2009 study never crossed — and that no follow-up study has crossed since. ^[1]^[2]

The 2009 Signal Has Never Been Replicated

Cleveland Clinic reviewed twelve studies examining creatine’s effect on testosterone and found none that reported significant hormonal increases. ^[1] GoodRx reached the same conclusion: most studies find that people taking creatine do not carry elevated levels of either testosterone or DHT. ^[2] That is not a fringe position. That is the mainstream scientific reading of the available evidence. The 2009 DHT spike stands alone, unreplicated, from a study small enough that baseline imbalances between the creatine and placebo groups could explain the entire result without creatine doing anything at all.

The First Trial to Actually Look at Hair Found Nothing

A 2025 randomized double-blind placebo-controlled trial became the first study in the literature to directly measure hair follicle health alongside androgen levels in creatine users. The results were unambiguous. There were no significant differences in DHT levels, DHT-to-testosterone ratio, or any hair growth parameters between the creatine and placebo groups over 12 weeks. ^[5] Testosterone did shift over time in participants, but those changes were independent of supplementation — meaning the gym training itself, not the creatine, was the variable. ^[6]

What the New Trial Still Cannot Tell You

The 2025 trial used 5 grams per day, the standard maintenance dose. The 2009 rugby study used a loading phase of roughly 25 grams per day for the first week — the specific protocol that produced the alarming DHT number. ^[7] That gap matters. The strongest direct evidence against the creatine-hair-loss claim does not technically refute the exact scenario that generated the claim. The trial also enrolled healthy young resistance-trained men, leaving women, older adults, and men with a family history of baldness without data that speaks directly to their situation. ^[5]

FALSE:
* The “56% increase in DHT” claim is from a 2009 study of only 20 college rugby players taking creatine and did NOT even measure hair loss. DHT increased during the loading phase and stayed somewhat elevated afterward.

— Brigham’s Coug (@That_Y_Lyfe) May 18, 2026

Those are legitimate scientific gaps, not reasons to panic. The absence of evidence for a loading-dose hair effect is not the same as evidence of an effect. But anyone telling you the question is completely and permanently settled is overstating what a single 12-week trial in young men can deliver. The honest answer is that standard-dose creatine shows no effect on hair in the best available direct evidence, and the loading-dose concern traces back to one unreplicated study that never measured the outcome anyone actually cares about. For most men taking creatine at normal doses, the science is about as reassuring as it gets without a decades-long population study. For men genetically predisposed to hair loss who want to run a high-dose loading phase, the data simply does not exist yet to answer that narrower question with certainty.