Does creatine cause hair loss? The claim shows up under nearly every creatine post, usually with total confidence. It traces back to one study, published in 2009, on 20 rugby players. That study never measured hair. A 2025 trial that did measure hair found no difference from placebo. If you have been holding off on creatine because of this, here is the full record on both studies, so you can decide on the data instead of the comment section.
The short answer
- No study has shown that creatine causes hair loss.
- The rumor comes from a 2009 study that found a rise in DHT, a hormone linked to male pattern baldness. It did not measure hair.
- That result has not been replicated. A 2025 randomized trial measured both DHT and hair directly and found no difference between creatine and placebo.
- If you are already losing hair from genetics, creatine is not the variable to watch. A dermatologist is the right call for that.
The rumor rests on one study of 20 men that never looked at hair
In 2009, researchers in South Africa published a study in the Clinical Journal of Sport Medicine on college rugby players (van der Merwe, Brooks, and Myburgh, 2009). Twenty players took creatine or a placebo in a crossover design. The creatine protocol was a loading phase of 25 grams per day for seven days, followed by 5 grams per day for 14 days. Both phases included added glucose.
The researchers measured hormones. Testosterone did not change significantly. Dihydrotestosterone, or DHT, rose about 56 percent after the loading week and stayed about 40 percent above baseline after the maintenance phase. The ratio of DHT to testosterone also rose.
That is the entire origin. One study. 20 men. Three weeks. A first week dose five times what most people take. And no measurement of hair at any point.
The missing link: why a DHT number is not a hair result
DHT is made from testosterone by an enzyme called 5 alpha reductase. In people who are genetically prone to male pattern hair loss, DHT acts on scalp follicles and shrinks them over time. That is why some hair loss medications work by lowering DHT.
So the internet built a chain. Creatine raised DHT in one study. DHT is involved in pattern baldness. Therefore creatine causes hair loss. Each link sounds plausible. But the last link, the one about actual hair, was never tested. And the first link had never been confirmed.
A few more facts matter. DHT levels move for many reasons. A temporary rise in blood DHT is not the same as follicle damage. And hair loss from DHT is driven largely by how sensitive your follicles are to it, which is mostly genetic.
Call it the missing link. The fear was never built on hair data. It was built on a hormone reading, followed by an assumption.
What the research says about creatine and hair loss when someone finally measured hair
For more than a decade after 2009, no study replicated the DHT finding. Many creatine studies measured testosterone along the way, and reviews of that data generally found creatine did not meaningfully change it. The ISSN position stand (Kreider et al., JISSN 2017) reviewed the safety literature on creatine monohydrate and did not identify hair loss as a documented effect.
Then someone tested the question directly. In 2025, a group including Lak, Forbes, Antonio, and Tinsley published a 12 week randomized, placebo controlled trial titled "Does creatine cause hair loss?" in the Journal of the International Society of Sports Nutrition (Lak et al., 2025). Resistance trained men aged 18 to 40 took either 5 grams of creatine monohydrate a day or a placebo.
The researchers measured DHT and the DHT to testosterone ratio. They also measured the hair itself: hair density, follicular unit counts, and hair thickness, using standard dermatology imaging tools.
The result: no significant difference between groups in DHT, in the DHT to testosterone ratio, or in any of the hair measures.
The two studies, side by side
| Detail | van der Merwe 2009 | Lak 2025 |
|---|---|---|
| Participants | 20 college rugby players | Resistance trained men, 18 to 40 |
| Dose | 25g/day for 7 days, then 5g/day, with glucose | 5g/day |
| Duration | 3 weeks | 12 weeks |
| DHT | Increased | No difference vs placebo |
| Hair measured | No | Yes. No difference vs placebo |
What one trial settles, and what it leaves open
One trial does not close every question. The 2025 study ran 12 weeks, and male pattern hair loss develops over years. It studied men, not women. A longer study would add more.
But the honest summary is this. The evidence that creatine causes hair loss was never evidence about hair. It was one unreplicated hormone result. The only study that looked at hair directly found nothing. If you are deciding on data, that is where the data sits.
If you are genetically prone to pattern hair loss, that process tends to happen with or without creatine. The useful step is to talk to a dermatologist about your own hair, not to avoid a supplement based on a study that did not measure it.
You do not need the dose that started the rumor
- 5 grams a day is the standard. It is the daily amount in the 2025 hair study and the amount the ISSN describes. The 2009 study used five times that for its first week. Loading is optional. See Do You Need a Creatine Loading Phase?
- Consistency matters more than size. At 5 grams a day, muscle stores fill over about 3 to 4 weeks and stay full only with daily intake. Call it the saturation rule. The missed day costs you more than any small dose ever will.
- If you see hair changes, check the usual factors first: family history, sleep, physical stress, diet, and recent illness. A dermatologist can sort out which one is in play.
- The other common rumor is about kidneys. That is covered in Creatine and Your Kidneys.
Where Revo stands
We make one product, and we built it around the dose the research actually supports. Each stick holds 5g of micronized creatine monohydrate, the same daily amount used in the 2025 hair study, plus electrolytes with 0g sugar. No loading by default. Made in an FDA registered, SQF certified facility in Norcross, Georgia, under cGMP. Third party tested, with a certificate of analysis available on request.
A box of 30 is $54.99, about $1.83 a stick. One stick in 12 to 16 ounces of water, no shaker, every day.
Try it for 30 days. If it does not work for you, tell us and we refund it. No forms. See Revo Creatine + Electrolyte Stick Packs, Pink Lemonade.
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
