Does creatine cause hair loss?

The evidence-led answer

NST verdict

On current evidence, no, creatine does not appear to cause hair loss. The worry traces to a single 2009 study that found a rise in the hormone DHT after creatine loading in a group of rugby players. That study never measured hair, and no one has directly repeated its hormone finding since. In 2025 a randomised controlled trial finally measured both the hormones and the hair, density, follicle counts, hair thickness, in men taking 5 grams of creatine a day for 12 weeks, and found no difference from placebo on any of them. The honest caveat is that this is still one short study in young men, so a small or very long term effect is not completely ruled out. But there is no good evidence based reason to avoid creatine for fear of losing your hair.

Where did the creatine hair loss idea come from?

From one study, in 2009. A crossover trial in 20 college aged male rugby players found that after a week of creatine loading, dihydrotestosterone (DHT) rose by around 56%, and the ratio of DHT to testosterone by around 36%. Both stayed elevated, about 40% and 22% above baseline, through two more weeks on a maintenance dose. Total testosterone itself did not change. The crucial detail: this study did not measure hair at all, not hair count, not thickness, not shedding. It measured a hormone ratio and nothing else. The authors themselves called for further investigation.

Does creatine raise DHT, and does that matter?

DHT is the androgen most closely linked to male pattern hair loss, so a study showing a DHT rise is a fair thing to take seriously and follow up. But two things temper it. First, a change in a blood hormone ratio is not the same as hair loss: follicles miniaturising and hair actually thinning is the outcome that matters, and the 2009 study did not look at it. Second, the 2009 hormone finding has never been directly replicated; it remains a single result in a single small group. So the mechanism was plausible enough to check, which is exactly what eventually happened.

What happened when someone actually measured hair?

In 2025, a double blind randomised controlled trial did the direct test. It gave 38 resistance trained men either 5 grams of creatine monohydrate a day or a placebo for 12 weeks, and measured total testosterone, free testosterone, DHT and the DHT to testosterone ratio, along with hair follicle health, hair density, follicular unit count, cumulative hair thickness, and a Trichogram. There were no differences between the creatine and placebo groups for any hormone or any hair measure. The researchers described the result as strong evidence against the claim that creatine contributes to hair loss.

What do the experts say?

A widely cited review of creatine misconceptions concludes that the evidence does not show creatine causes hair loss or baldness. The International Society of Sports Nutrition position stand reports that creatine is well tolerated in long term use, doses up to 30 grams a day for five years in healthy people, with no signal of androgenic side effects.

So is it settled?

Not completely, and it is worth being honest about that. The direct evidence is still one 12 week trial in young men. It cannot rule out a small effect the study was not powered to detect, an effect that only shows up over years rather than weeks, or an effect specific to people who are genetically prone to male pattern baldness and who use high doses. What the 2025 trial does do is remove the main empirical reason people cite for avoiding creatine, and it is the only study that has ever actually looked at hair.

If you do take creatine, which one?

Creatine monohydrate is a commodity. The effective, well studied form is plain creatine monohydrate at about 3 to 5 grams a day, with no loading phase needed; the creatine article covers dosing. Fancier forms, hydrochloride, buffered, liquid, cost more without a proven advantage. So the honest recommendation is a category, not a brand: any plain creatine monohydrate that is single ingredient and, ideally, carries a purity mark such as Creapure or third party testing (Informed Sport, NSF). The products listed with this article are review pending candidates only, NST has not tested them, and no price, rating, ranking or affiliate link has been recorded. A reviewer verifies each against the product review brief before any of this becomes a recommendation.

What this means in practice

If you want the strength and muscle benefits of creatine, the hair loss claim is not a strong reason to skip it. If you are still cautious, the standard 3 to 5 grams a day as a maintenance dose, with no loading phase, is the lowest exposure way to take it, and it is exactly the dose the 2025 trial used. If you already have male pattern hair loss and want certainty for your own situation, raise it with a doctor or dermatologist rather than guessing. Nothing here is a reason to start or stop a hair treatment.