Does Creatine Cause Hair Loss?

Does creatine cause hair loss? The short answer

No study has ever shown that creatine causes hair loss. A 2025 randomized controlled trial, the first built specifically to check this, tracked hair density, follicle count, and hair thickness in men taking creatine for 12 weeks and found no difference against placebo. The fear that started this whole conversation traces to a single 2009 study that measured a hormone, not hair, and that hormone finding has never been repeated since.

Where the Claim Comes From

The entire concern traces back to one 2009 study of college-age rugby players, published in the Clinical Journal of Sport Medicine. Researchers gave a small group of athletes a creatine loading phase for seven days, followed by a lower maintenance dose for two more weeks, then measured blood hormones. Dihydrotestosterone, known as DHT, rose 56 percent after the loading phase and stayed roughly 40 percent above baseline through the maintenance phase. The ratio of DHT to testosterone climbed 36 percent after loading and was still 22 percent above baseline at the two-week mark. Testosterone itself did not move.

That is the entire finding, and what it left out matters as much as what it found. The study measured a blood marker in 20 rugby players. Nobody counted shed hairs, tracked hairlines, or measured hair density, because hair was never the outcome the researchers reported. What they measured were hormones and body composition, and that single hormone reading is the entire foundation the creatine hair loss fear has stood on since 2009.

DHT and Hair Loss

DHT is a real and well established part of the male-pattern baldness story. In people who are genetically prone to it, hair follicles are sensitive to DHT and shrink over time, which is exactly why DHT-blocking treatments are used to slow that kind of hair loss (the hair loss guide covers how those treatments work). That connection is why the 2009 finding felt like a smoking gun: if creatine raises DHT, and DHT drives baldness in people prone to it, then maybe creatine drives baldness too.

The logic reads cleanly. The problem is that the second half of that chain, whether creatine users lose more hair, was never tested until recently. A reasonable-sounding hypothesis is not the same as a demonstrated effect, and for more than a decade, that gap between plausible and proven is exactly where this myth lived.

What the 2025 Trial Found

In 2025, researchers finally ran the study built to close that gap. A 12-week randomized controlled trial, published in the Journal of the International Society of Sports Nutrition, followed 38 men between 18 and 40 years old, split into a creatine group and a placebo group, and measured hair the way the question demands: density, follicle count, and cumulative hair thickness, alongside DHT and testosterone.

The result was no difference, on any measure. Creatine did not change DHT, did not change testosterone in any way tied to supplementation, and did not move a single one of the hair measurements compared with placebo. In the study authors’ own words, the trial was “the first to directly assess hair follicle health following creatine supplementation, providing strong evidence against the claim that creatine contributes to hair loss.”

This result outweighs the 2009 finding for a simple reason. The 2009 study measured a proxy, a hormone, and stopped there. The 2025 study measured the actual outcome everyone was worried about, checked the hormone too, and neither one moved. A study that tests the exact thing people fear and comes back negative carries more weight than a hypothesis built on a marker from a much smaller, older study.

What the Evidence Shows

Here is a plain map of where the two studies leave things. This is a research-status summary, not advice, and it does not tell anyone what to take.

What this does not settle: two studies are still a thin evidence base, and both were done in younger men rather than in people already experiencing hair loss, so nobody has specifically tested creatine in men with active male-pattern baldness or a strong family history. That is a fair gap to name. The direction of the best available evidence is clear regardless, and it runs against the myth, not toward it.

Should You Worry

For most people, no. The performance benefits of creatine rank among the best documented in all of sports nutrition, and the hair-loss risk now sits at zero direct evidence, with one negative trial actively arguing against it. If you have no family history of male-pattern baldness, current research gives little reason for concern.

If you are genetically prone to male-pattern baldness and this still worries you, that is a personal judgment call, and a reasonable place to be cautious about anything, not only creatine. This page will not tell you a dose to take, a dose to avoid, or a schedule to follow, because that is not what education content should do, and the evidence does not support that kind of specificity anyway. The useful move is to know what the studies found, talk with a clinician if you carry real risk factors, and decide from there. For the full picture on the compound itself, see the complete creatine guide, and if hair loss specifically is the concern, the hair loss guide covers what does and does not affect it.

The Short Version

See the rest of the safety picture in the complete creatine guide, or check the hair loss guide for what else affects your hair.

Frequently Asked Questions