Does Creatine Cause Hair Loss? What the Evidence Actually Shows

Q: Does creatine cause hair loss?

There is no good evidence that it does. The worry traces back to a single 2009 study of 20 college rugby players, which found that three weeks of creatine raised dihydrotestosterone (DHT), a hormone linked to male-pattern baldness. That study never measured a single hair, and the finding was never replicated. In 2025, a 12-week randomized controlled trial finally did the direct experiment: it measured DHT and hair follicle health in men taking creatine versus a placebo, and found no difference in either. The people who study this for a living, the International Society of Sports Nutrition, list creatine and hair loss among the misconceptions their expert panel reviewed and did not find supported. So the honest answer is no: at normal doses, the best available evidence says creatine does not cause hair loss.

Q: Does creatine increase DHT?

One study did report a rise. In the 2009 rugby-player trial, DHT increased 56% after a week of heavy creatine loading (25 grams a day) and stayed about 40% above baseline during maintenance, while total testosterone did not change. But that is the only study to show it, and the 2025 randomized trial at the normal 5 gram a day dose found no change in DHT or in the DHT-to-testosterone ratio at all. Earlier work measuring the hormonal response to training also found creatine did not move testosterone. And even in the 2009 study, that was a change in a blood hormone reading, not a measurement of hair, and it was never linked to any actual hair change. A blood hormone reading is not the same thing as hair falling out.

Q: Is hair loss from creatine reversible, and will my hair grow back if I stop?

Because the evidence says creatine is not causing hair loss in the first place, stopping it is unlikely to regrow hair that is thinning for other reasons. If you are genuinely shedding, the cause is far more likely to be genetic male-pattern or female-pattern hair loss, which progresses on its own timeline whether or not you take creatine. Quitting a supplement will not reverse that. The productive move is not to guess, but to see a dermatologist who can identify what is actually driving the shedding and what, if anything, will help it.

Q: Does creatine cause hair loss in women?

There is no evidence that it does, and if anything the concern is even weaker for women. Female hair thinning is usually not driven by DHT the way male-pattern baldness is, and women have much lower androgen levels to begin with. No study has linked creatine to hair loss in women, and the 2025 trial that found no hair effect adds to that reassurance. Creatine also has specific, well-studied benefits for women, which we cover in our guide to creatine for women.

Q: Will creatine give me a receding hairline or make me bald if I am genetically predisposed?

Male-pattern baldness, or androgenetic alopecia, is driven by inherited genes that make scalp hair follicles sensitive to DHT. If you carry those genes, you may gradually lose hair regardless of what supplements you take, and if you do not, a normal DHT level does not make you bald. The best current evidence, including the 2025 randomized trial, does not show creatine accelerating hair loss. That said, if you have a strong family history and are noticing a receding hairline, that is a reason to see a dermatologist about your genetics, not a reason to blame the creatine.

Q: How much creatine is safe, and does the loading phase matter for hair?

Three to five grams a day of creatine monohydrate is the standard effective dose, and the International Society of Sports Nutrition safety review concluded that creatine is safe and well tolerated, with data on doses up to 30 grams a day for as long as five years. The loading phase, around 20 grams a day for a week, is optional; it only fills your muscle stores a little faster and is not required. It is worth noting that even the one study that ever reported a DHT rise, the 2009 trial, still saw DHT stay about 40 percent above baseline during its 5 gram a day maintenance phase, so a maintenance dose does not by itself avoid that hormone-only rise. The real reassurance is the 2025 randomized trial, which measured DHT and hair follicle health at 5 grams a day and found no change in either, so the standard 5 grams a day is the dose the direct evidence supports.

Q: What did the 2025 creatine hair loss study find?

It was the first study to measure hair directly. Researchers randomly assigned 45 resistance-trained men to 5 grams a day of creatine or a placebo for 12 weeks, and measured total testosterone, free testosterone, and DHT in blood, plus hair follicle health using a Trichogram and the FotoFinder system (hair density, follicular unit count, and hair thickness). There were no differences between the creatine and placebo groups for any hormone or any hair measurement. The authors concluded the trial provides strong evidence against the claim that creatine contributes to hair loss. In fairness, it ran 12 weeks in 38 men who finished, did not screen for a genetic baldness predisposition, and its author list includes creatine-industry advisors, so it is not the final word, but it is by far the most direct test yet.

Q: Should I take a DHT blocker like saw palmetto with creatine?

There is no need to if there is no evidence creatine is raising your DHT at normal doses, which is what the data show. Saw palmetto is marketed as a natural DHT blocker, but its evidence for hair loss is weak and inconsistent, so it is not something to rely on. If you are actually losing hair and want to treat it, the interventions with real evidence work by blocking DHT with prescription medicines such as finasteride or dutasteride, or by using topical minoxidil, and those belong in a conversation with a dermatologist rather than a self-assembled supplement stack.

Ask a gym forum whether creatine causes hair loss and you will get a hundred confident answers, most of them wrong in one direction or the other. It is probably the single most common worry about the most studied sports supplement there is, and it has kept a lot of people from taking something with real, well-documented benefits.

So let us do the thing the internet arguments almost never do: read the actual studies. There are really only two that matter, one from 2009 and one from 2025, and once you have seen both, the answer is a lot clearer than the noise suggests.

The short answer

There is no good evidence that creatine causes hair loss.
The entire fear traces to one 2009 study of 20 rugby players that found a rise in the hormone DHT but never measured a single hair.
In 2025, a 12-week randomized controlled trial measured DHT and hair follicle health directly, and found no effect on either.
DHT only drives hair loss in people genetically predisposed to male-pattern baldness, and the 2009 rise was a blood-hormone change that was never tied to any actual hair loss.
If you are losing hair and worried, the evidence-based step is a dermatologist, not quitting creatine.

Where the creatine hair loss fear comes from

The worry is built on a chain of reasoning that sounds airtight: creatine raises DHT, DHT causes male-pattern baldness, therefore creatine causes baldness. Each link feels plausible, which is exactly why the idea spread so fast across Reddit, gym threads, and supplement blogs. The problem is that a plausible chain is not the same as a proven one, and this one breaks at the very first link.

DHT, or dihydrotestosterone, is a real androgen and it genuinely is involved in male-pattern hair loss. That part is not a myth. What has been quietly oversold is the first step: the claim that creatine meaningfully raises your DHT, and that if it does, your hair pays the price. To see how thin that step is, you have to go back to the one study everyone is actually citing, usually without having read it.

The one study behind the entire scare

Nearly every hair loss warning about creatine descends from a single 2009 paper published in the Clinical Journal of Sport Medicine. Researchers gave 20 college-aged rugby players either creatine or a placebo in a double-blind crossover design: a week of loading at 25 grams a day, then two weeks of maintenance at 5 grams a day. They measured testosterone and DHT in the blood.

Total testosterone did not change. DHT, however, rose by 56% after the loading week and was still about 40% above baseline after maintenance, and the DHT-to-testosterone ratio climbed too. That 56% figure is the number that launched a thousand worried posts.

Here is what those posts almost never mention. The study never measured hair. Not a hairline, not a follicle, not hair density, nothing. It measured a hormone in the blood and stopped there. Its own authors were careful, concluding only that the finding meant "further investigation is warranted" and that long-term safety "cannot be guaranteed," which is a scientist's way of saying we do not actually know yet. The result was also contested at the time, drawing a published critique in the same journal. It was a small, single study, in 20 young athletes, that raised a question and explicitly asked someone to go answer it. For about fifteen years, no one did, and in the meantime the internet treated a question as if it were a verdict.

What DHT actually does to hair, and why the rise may not matter

To judge whether a DHT bump matters, you need to know how hair loss actually works. Testosterone is converted into the more potent DHT by an enzyme called 5-alpha-reductase. In androgenetic alopecia, the clinical name for male- and female-pattern baldness, DHT binds to receptors in scalp hair follicles and gradually shrinks them, a process called miniaturization, until they stop producing visible hair.

But there is a crucial condition attached to that sentence: it only happens in follicles that are genetically susceptible. Androgenetic alopecia is a polygenic, inherited trait, and variation in the androgen receptor gene, carried largely down the maternal line, is the single biggest determinant of who develops it. Men with lifelong high DHT do not all go bald, and plenty of men with perfectly normal DHT do, if they have the genes. The hormone is the messenger; your genes decide whether the follicle is listening.

The nuance that gets lost: elevated DHT in the blood is not the same as hair loss. A change in a circulating hormone level does not automatically translate into follicle miniaturization, and where it does, it does so only in people already carrying the baldness genes. For everyone else, a higher DHT reading is just a number.

So even if you take the 2009 result at face value, two things gut the alarm. First, a blood DHT rise was measured, but its effect on actual hair was not, and cannot be assumed. Second, whatever DHT does, it does only to genetically predisposed follicles, and for those men the driver is their inherited biology, with or without a scoop of creatine. The 2009 study measured the messenger and never checked whether the message was received.

The study that finally tested it directly

In 2025, researchers finally ran the experiment the 2009 authors had called for. Published in the Journal of the International Society of Sports Nutrition, it randomly assigned 45 resistance-trained men, aged 18 to 40, to 5 grams a day of creatine monohydrate or a matching placebo for 12 weeks. And this time they measured what actually matters: not just total testosterone, free testosterone, and DHT in the blood, but hair follicle health directly, using a Trichogram and the FotoFinder imaging system to track hair density, follicular unit counts, and hair thickness.

The result was clean. There were no differences between the creatine and placebo groups for any hormone or any hair measurement. DHT did not rise. The DHT-to-testosterone ratio did not move. Hair density and thickness did not change relative to placebo. The authors concluded that their trial, the first to assess hair follicle health directly, "provides strong evidence against the claim that creatine contributes to hair loss."

	2009 study (van der Merwe)	2025 study (Lak)
Design	20 rugby players, crossover, 3 weeks.	45 men (38 finished), parallel randomized trial, 12 weeks.
Dose	25 g/day loading, then 5 g/day.	5 g/day, no loading phase.
Did it measure hair?	No. Blood hormones only.	Yes. Trichogram plus FotoFinder hair density and thickness.
DHT result	Rose 56% after loading, ~40% above baseline (P<0.001).	No difference versus placebo.
Hair result	Not measured.	No difference versus placebo.
What the authors said	“Further investigation is warranted.”	“Strong evidence against the claim.”

For roughly fifteen years, the 2009 hormone study on the left was the entire evidentiary basis for a claim about baldness. The 2025 trial on the right is the first study designed to actually answer the question.

Two honest caveats. The 2025 trial ran for 12 weeks in the 38 men who completed it, did not screen participants for a genetic baldness predisposition, and its author list includes people with creatine-industry ties. It is not the last word. But it is a randomized, placebo-controlled trial that measured hair directly, its result agrees with the underlying biology, and it agrees with every other study that has looked at creatine and male hormones. That is a far stronger footing than one 20-person hormone study that never looked at a hair.

What the rest of the evidence says

The two headline studies do not sit alone. The broader literature has repeatedly failed to find creatine moving male hormones at all: an earlier controlled study found that creatine did not alter the testosterone response to resistance training. And the field's main scientific body, the International Society of Sports Nutrition, has now addressed the hair loss question head on. Its expert panels list "does creatine cause hair loss or baldness?" among the common misconceptions they evaluated, in a 2021 review and again in a 2025 follow-up, and did not find it supported by evidence. The same group's safety position stand concludes that creatine is safe and well tolerated, with data covering doses as high as 30 grams a day for up to five years.

Put simply: no randomized trial, no systematic review, and no case series has ever shown creatine causing hair loss. The one study that even hinted at a mechanism measured a hormone, not a hair, and the one study that measured hair found nothing. For more on the supplement itself and the other myths attached to it, see our creatine benefits, dosing, and myths guide and our roundup of the best creatine supplements.

Does creatine cause hair loss in women?

If anything, the concern is even weaker for women. Female hair thinning is usually not DHT-driven the way male-pattern baldness is, and women have far lower androgen levels to begin with. No study has linked creatine to hair loss in women, and the 2025 trial, though conducted in men, adds to the reassurance because it found no effect on the hormone pathway that the worry depends on. Creatine also has specific, well-studied benefits for women across training and healthy aging, which we cover in our guide to creatine for women.

If you are worried, or already losing hair

The right move depends on your situation, so here is the honest, practical version.

No family history, no shedding, just cautious: there is no evidence-based reason to avoid creatine for the sake of your hair. Take the standard 3 to 5 grams a day. You can skip the optional 20 gram loading phase if you like, but that is not what makes it safe: in the 2009 study DHT stayed about 40 percent above baseline even at the 5 gram maintenance dose. The real reassurance is the 2025 trial, which measured DHT and hair at 5 grams a day and found no change in either.
You are noticing thinning or have a strong family history of baldness: your hair loss is very likely genetic and would be happening whether or not you touched creatine. Do not self-diagnose it as "the creatine" and lose both your hair and the benefits of the supplement. See a dermatologist, who can confirm what is actually going on.
On "natural DHT blockers" like saw palmetto: they are marketed hard for this, but the hair evidence is weak and inconsistent. Do not count on a supplement to solve a genetic process.
What actually works for genetic hair loss: the treatments with real evidence block DHT with prescription 5-alpha-reductase inhibitors such as finasteride or dutasteride, or use topical minoxidil. Those are decisions to make with a doctor, not a supplement swap you do on your own.

Frequently asked questions

Does creatine cause hair loss?

There is no good evidence that it does. The worry traces back to a single 2009 study of 20 college rugby players, which found that three weeks of creatine raised dihydrotestosterone (DHT), a hormone linked to male-pattern baldness. That study never measured a single hair, and the finding was never replicated. In 2025, a 12-week randomized controlled trial finally did the direct experiment: it measured DHT and hair follicle health in men taking creatine versus a placebo, and found no difference in either. The people who study this for a living, the International Society of Sports Nutrition, list creatine and hair loss among the misconceptions their expert panel reviewed and did not find supported. So the honest answer is no: at normal doses, the best available evidence says creatine does not cause hair loss.

Does creatine increase DHT?

One study did report a rise. In the 2009 rugby-player trial, DHT increased 56% after a week of heavy creatine loading (25 grams a day) and stayed about 40% above baseline during maintenance, while total testosterone did not change. But that is the only study to show it, and the 2025 randomized trial at the normal 5 gram a day dose found no change in DHT or in the DHT-to-testosterone ratio at all. Earlier work measuring the hormonal response to training also found creatine did not move testosterone. And even in the 2009 study, that was a change in a blood hormone reading, not a measurement of hair, and it was never linked to any actual hair change. A blood hormone reading is not the same thing as hair falling out.

Is hair loss from creatine reversible, and will my hair grow back if I stop?

Because the evidence says creatine is not causing hair loss in the first place, stopping it is unlikely to regrow hair that is thinning for other reasons. If you are genuinely shedding, the cause is far more likely to be genetic male-pattern or female-pattern hair loss, which progresses on its own timeline whether or not you take creatine. Quitting a supplement will not reverse that. The productive move is not to guess, but to see a dermatologist who can identify what is actually driving the shedding and what, if anything, will help it.

Does creatine cause hair loss in women?

There is no evidence that it does, and if anything the concern is even weaker for women. Female hair thinning is usually not driven by DHT the way male-pattern baldness is, and women have much lower androgen levels to begin with. No study has linked creatine to hair loss in women, and the 2025 trial that found no hair effect adds to that reassurance. Creatine also has specific, well-studied benefits for women, which we cover in our guide to creatine for women.

Will creatine give me a receding hairline or make me bald if I am genetically predisposed?

Male-pattern baldness, or androgenetic alopecia, is driven by inherited genes that make scalp hair follicles sensitive to DHT. If you carry those genes, you may gradually lose hair regardless of what supplements you take, and if you do not, a normal DHT level does not make you bald. The best current evidence, including the 2025 randomized trial, does not show creatine accelerating hair loss. That said, if you have a strong family history and are noticing a receding hairline, that is a reason to see a dermatologist about your genetics, not a reason to blame the creatine.

How much creatine is safe, and does the loading phase matter for hair?

Three to five grams a day of creatine monohydrate is the standard effective dose, and the International Society of Sports Nutrition safety review concluded that creatine is safe and well tolerated, with data on doses up to 30 grams a day for as long as five years. The loading phase, around 20 grams a day for a week, is optional; it only fills your muscle stores a little faster and is not required. It is worth noting that even the one study that ever reported a DHT rise, the 2009 trial, still saw DHT stay about 40 percent above baseline during its 5 gram a day maintenance phase, so a maintenance dose does not by itself avoid that hormone-only rise. The real reassurance is the 2025 randomized trial, which measured DHT and hair follicle health at 5 grams a day and found no change in either, so the standard 5 grams a day is the dose the direct evidence supports.

What did the 2025 creatine hair loss study find?

It was the first study to measure hair directly. Researchers randomly assigned 45 resistance-trained men to 5 grams a day of creatine or a placebo for 12 weeks, and measured total testosterone, free testosterone, and DHT in blood, plus hair follicle health using a Trichogram and the FotoFinder system (hair density, follicular unit count, and hair thickness). There were no differences between the creatine and placebo groups for any hormone or any hair measurement. The authors concluded the trial provides strong evidence against the claim that creatine contributes to hair loss. In fairness, it ran 12 weeks in 38 men who finished, did not screen for a genetic baldness predisposition, and its author list includes creatine-industry advisors, so it is not the final word, but it is by far the most direct test yet.

Should I take a DHT blocker like saw palmetto with creatine?

There is no need to if there is no evidence creatine is raising your DHT at normal doses, which is what the data show. Saw palmetto is marketed as a natural DHT blocker, but its evidence for hair loss is weak and inconsistent, so it is not something to rely on. If you are actually losing hair and want to treat it, the interventions with real evidence work by blocking DHT with prescription medicines such as finasteride or dutasteride, or by using topical minoxidil, and those belong in a conversation with a dermatologist rather than a self-assembled supplement stack.

The bottom line

The creatine and hair loss story is a textbook example of how one small study, misread and amplified for fifteen years, becomes accepted as fact. The 2009 study measured a hormone, not a hair, and hedged its own conclusion. Everything since, capped by a 2025 trial built specifically to answer the question, points the same way: at normal doses, creatine does not meaningfully raise DHT, and it does not appear to affect your hair.

If you are losing hair, the culprit is almost always your genetics, and the honest answer is a dermatologist who can treat the real cause, not giving up one of the most well-supported supplements in the world over a myth. Creatine has better things to offer than a scare that never had the evidence to back it.

Reviewed for accuracy by

Vladimir Salamakha

B.S. in Chemistry, University of South Florida · a formulation scientist with 15 years developing compliant, evidence-based products across nutritional supplements and personal care. More about the author →

A quick note This guide is general information and an evidence-based look at a common supplement myth. It is not medical advice, not a diagnosis, and not a substitute for care from a qualified clinician. If you are experiencing hair loss, see a dermatologist, who can identify the actual cause and the treatments that fit it. Do not start or stop any supplement or medication based on an article. Dietary supplements are not intended to diagnose, treat, cure, or prevent any disease.

Sources

van der Merwe J, Brooks NE, Myburgh KH. Three weeks of creatine monohydrate supplementation affects dihydrotestosterone to testosterone ratio in college-aged rugby players. Clin J Sport Med, 2009;19(5):399-404. PMID 19741313. · Green G. Creatine supplementation and DHT:T ratio in male rugby players (letter). Clin J Sport Med, 2010;20(3):220. PMID 20445368. · Lak M, Forbes SC, Ashtary-Larky D, et al. Does creatine cause hair loss? A 12-week randomized controlled trial. J Int Soc Sports Nutr, 2025;22(sup1):2495229. PMID 40265319. · Antonio J, Candow DG, Forbes SC, et al. Common questions and misconceptions about creatine supplementation: what does the scientific evidence really show? J Int Soc Sports Nutr, 2021;18(1):13. PMID 33557850. · Antonio J, Brown AF, Candow DG, et al. Part II. Common questions and misconceptions about creatine supplementation. J Int Soc Sports Nutr, 2025;22(1):2441760. PMID 39720835. · Kreider RB, Kalman DS, Antonio J, et al. International Society of Sports Nutrition position stand: safety and efficacy of creatine supplementation in exercise, sport, and medicine. J Int Soc Sports Nutr, 2017;14:18. PMID 28615996. · Eijnde BO, Hespel P. Short-term creatine supplementation does not alter the hormonal response to resistance training. Med Sci Sports Exerc, 2001;33(3):449-453. PMID 11252073. · Azzouni F, Godoy A, Li Y, Mohler J. The 5 alpha-reductase isozyme family: a review of basic biology and their role in human diseases. Adv Urol, 2012;2012:530121. PMID 22235201. · Lolli F, Pallotti F, Rossi A, et al. Androgenetic alopecia: a review. Endocrine, 2017;57(1):9-17. PMID 28349362. · Hillmer AM, Hanneken S, Ritzmann S, et al. Genetic variation in the human androgen receptor gene is the major determinant of common early-onset androgenetic alopecia. Am J Hum Genet, 2005;77(1):140-148. PMID 15902657. · Dhurat R, Sharma A, Rudnicka L, et al. 5-Alpha reductase inhibitors in androgenetic alopecia: shifting paradigms, current concepts, comparative efficacy, and safety. Dermatol Ther, 2020;33(3):e13379. PMID 32279398.