Does creatine cause hair loss, by the evidence

1. 01

   The claim traces to one study, in 20 people, that measured DHT

   The entire creatine-hair-loss narrative rests on Van der Merwe et al. 2009: 20 college rugby players, loaded with 25 g/day creatine for 7 days then 5 g/day for 14 days, showed a ~56% rise in dihydrotestosterone (DHT) and a ~36% rise in the DHT-to-testosterone ratio versus placebo. Critically, the absolute DHT values stayed inside the normal reference range, the study lasted 21 days, and it measured a hormone, not hair. No hair-density, hair-count, or shedding endpoint was assessed. This single 21-day study in 20 athletes is the sole primary source behind a claim repeated across the internet.

2. 02

   The DHT rise has never been replicated in 15+ years

   A finding from one small study only matters if it reproduces. It has not. In the more than 15 years since 2009, no published trial has replicated the ~56% DHT increase, and several reviews note that other creatine studies measuring androgens found no significant change in testosterone or DHT (Kreider et al. 2017). A non-replicated hormonal change in 20 people is the weakest tier of evidence; treating it as established fact inverts how the literature is supposed to be read.

3. 03

   Zero trials have measured actual hair loss as an outcome

   The decisive gap: across more than 1,000 creatine studies, not one has used hair loss, hair density, or shedding rate as a measured endpoint. The hair-loss claim is therefore entirely inferential, built on a hypothesised chain (creatine raises DHT, DHT drives pattern baldness) where the first link was seen once and never again, and the outcome itself has never been tested. A 2025 review of the creatine-and-hair question (Antonio et al.) concluded there is no controlled evidence that creatine causes or accelerates hair loss.

4. 04

   Why DHT matters for hair, and why that does not implicate creatine

   DHT is the androgen that miniaturises hair follicles in androgenetic alopecia (male- and female-pattern hair loss), but only in people who are genetically susceptible at the follicle. The disorder is driven by inherited follicle sensitivity to DHT, not by transient swings in circulating DHT within the normal range. This is why the theoretical concern, even if the DHT rise were real and reproducible, would be confined to people already predisposed to pattern baldness, and why a within-range, unreplicated change is a thin basis for worry.

5. 05

   Who, if anyone, has a reason to be cautious

   On current evidence, no one needs to avoid creatine to protect their hair. If a person already has active androgenetic alopecia and wants to be maximally conservative while the evidence is incomplete, the reasonable move is not to skip creatine but to track outcomes: if shedding genuinely changes after starting, that is a measurable signal worth discussing with a dermatologist, who can address pattern hair loss directly (finasteride, minoxidil) far more effectively than supplement avoidance ever could. For everyone else, the risk-to-evidence ratio does not justify giving up creatine's well-established performance and lean-mass benefits.

6. 06

   The trade-off you would be making to avoid a hypothetical

   Skipping creatine over the hair claim means forfeiting one of the best-evidenced ergogenic aids: ~5-15% greater strength and power gains and ~1-2 kg of lean mass over a training block (Kreider et al. 2017; Branch 2003), plus emerging cognitive benefits. That is a real, repeatedly demonstrated benefit traded away to avoid a single, unreplicated, within-range hormonal change that was never even linked to hair in a measured outcome. Weighed by evidence quality, the trade goes one way. If you do supplement, 3-5 g/day of plain monohydrate is the dose, and our creatine $/g ranking covers the cheapest tested product.

Was als Nächstes gefragt wird.

Q01

Does creatine actually cause hair loss?

There is no direct evidence that it does. No trial has ever measured hair loss as an outcome of creatine. The claim traces to a single 2009 study (Van der Merwe, n=20) that measured a ~56% rise in DHT, a hormone, not hair, with values staying in the normal range. That DHT rise has never been replicated in 15+ years, and a 2025 review found no controlled evidence creatine causes or accelerates hair loss.

Q02

Where did the creatine hair-loss claim come from?

From one study: Van der Merwe et al. 2009, in 20 college rugby players, who showed a ~56% increase in dihydrotestosterone (DHT) after a 21-day creatine protocol. DHT is involved in male-pattern baldness, so the internet extrapolated 'creatine raises DHT' to 'creatine causes baldness.' But the study measured a hormone, not hair, the DHT stayed within normal limits, and the finding was never reproduced.

Q03

Does creatine raise DHT or testosterone?

The 2009 study reported a within-range DHT rise in 20 men, but it has not been replicated, and other creatine trials measuring androgens found no significant change in testosterone or DHT (Kreider et al. 2017). A single non-replicated hormonal finding is weak evidence; the weight of the literature does not show that creatine reliably alters androgen levels.

Q04

Should I avoid creatine if I am prone to male-pattern baldness?

The evidence does not support avoiding it. Androgenetic alopecia is driven by inherited follicle sensitivity to DHT, not by the small, unreplicated, within-range DHT change seen once in 2009, and no trial has measured creatine affecting hair. If you want to be conservative, track shedding after starting rather than skip it, and see a dermatologist for pattern hair loss, which has far more effective treatments than supplement avoidance.

Q05

Is creatine safe to take long term?

Yes for healthy adults. Across more than 1,000 studies and trials beyond 4 years, creatine monohydrate at 3-5 g/day shows no adverse renal, hepatic, or cardiovascular effects in healthy people (Kreider et al. 2017, ISSN position stand). The one reproducible effect is 1-2 kg of intracellular water in the first weeks. Pre-existing kidney disease warrants medical supervision. See our creatine side effects breakdown for the full profile.

Q06

What is the right dose of creatine if I take it?

3-5 g/day of creatine monohydrate, every day, no loading required. Loading (20 g/day for 5-7 days) only speeds saturation and causes more GI upset. Plain monohydrate beats the pricier HCl or buffered forms on cost with no loss of effect; our creatine $/g ranking covers the cheapest tested product.