You start creatine, your training improves, and a few months later you notice more hair in the shower drain. The forums have a ready-made explanation: creatine raises DHT, DHT shrinks hair follicles, so stopping creatine should reverse the damage. It is a neat story, and it is mostly wrong. The honest answer to the question in the title is probably not. No study has shown that creatine causes hair loss in the first place, so stopping it rarely changes anything about your hair. That does not mean your shedding is imaginary. It means the cause is almost certainly something else, and stopping the supplement that gets the blame will not fix it.

This is worth getting right, because the decision has a real cost either way. Stop creatine and you give up a performance benefit that is well supported, for a hair benefit that has no evidence behind it. Keep taking it while your hair thins and you spend months blaming the wrong thing while the real cause goes untreated. Can stopping creatine reverse hair loss? Probably not. No study has shown that creatine causes hair loss in the first place, so stopping it rarely changes anything about your hair. That does not mean your shedding is imaginary. It means the cause is almost certainly something else, and stopping the supplement that gets the blame will not fix it. What follows is what the studies actually found, what stopping creatine does and does not do, and how to work out what is really happening with your hair.

The short answer: stopping creatine probably will not reverse hair loss

If you want one sentence: stopping creatine is unlikely to reverse hair loss, because the best evidence says creatine was never causing it. The entire hair loss worry traces back to one small study from 2009 that measured a hormone, not hair, and the only trial that has ever measured hair directly, published in 2025, found no effect at all. That is the core of it. Everything else in this article is the detail that supports that sentence, and the detail matters, because the 2009 finding was real, and dismissing it without explaining it would be dishonest.

There is one honest exception. If your hair loss started at the same time as a creatine loading phase, and you are genetically prone to pattern hair loss, it is possible in theory that a temporary rise in DHT nudged follicles that were already sensitive. Nobody can rule that out, because nobody has tested it. But even in that scenario, stopping creatine is not a reversal. Pattern hair loss is progressive and has no cure, according to the British Association of Dermatologists. At best, removing a possible trigger stops adding to the problem. It does not regrow what has miniaturised.

Where the creatine hair loss worry comes from

The fear has a single source, and it is worth reading properly rather than through forum summaries. In 2009, researchers at Stellenbosch University in South Africa published a study in the Clinical Journal of Sport Medicine. Twenty college-aged rugby players took creatine or a placebo in a double-blind crossover design, with a six-week washout between the two arms. The creatine arm loaded with 25 grams a day for seven days, then took 5 grams a day for fourteen days. Blood was drawn at baseline, after seven days and after twenty-one days.

Total testosterone did not change at any point. DHT did. After the seven-day loading phase, DHT was 56 percent above baseline, and after the fourteen-day maintenance phase it was still 40 percent above baseline. The ratio of DHT to testosterone rose by 36 percent after loading and stayed 22 percent above baseline after maintenance. Those are the numbers that have been repeated on every forum since, and they are accurate as far as they go.

What usually gets left out is the rest of the picture. First, the study never measured hair. Not hair counts, not shedding, not follicle size, not a single photograph of a scalp. It measured blood hormones for twenty-one days in twenty young men, sixteen of whom completed the study. The link to hair loss was an inference made afterwards by readers, not a finding of the paper. Second, the DHT values stayed within the normal clinical range for healthy young men throughout. Third, the absolute rise was small. The 2021 review of the creatine literature points out that baseline DHT was 23 percent lower in the creatine group than in the placebo group before supplementation started, 0.98 against 1.26 nanomoles per litre, and the rise in the creatine group was 0.55 nanomoles per litre after seven days and 0.40 after twenty-one days, while DHT in the placebo group fell slightly. A 56 percent rise sounds dramatic; a rise of half a nanomole per litre, staying inside the normal range, sounds different. Both descriptions are true, which is why the percentage alone misleads.

Fourth, and most important, the result has never been replicated. In seventeen years, no other study has reproduced the DHT rise, let alone documented hair loss. That does not make the 2009 study wrong. It makes it a single small finding that the rest of the literature has not confirmed, which is a weak foundation for a decision about your hair.

What DHT actually does to hair

To understand why the 2009 numbers scared people, you need the mechanism, and the mechanism is real. DHT, dihydrotestosterone, is made when the enzyme 5-alpha-reductase converts free testosterone into DHT. In people who are genetically sensitive to it, DHT binds to androgen receptors in hair follicles on the top and front of the scalp and gradually shrinks them. The British Association of Dermatologists describes the process as miniaturisation: each new hair grows back thinner, shorter and lighter than the one before, until eventually the follicle stops producing visible hair at all.

Two features of that process matter for the creatine question. The first is that genetics decide it. Having DHT is normal. What turns DHT into hair loss is an inherited sensitivity in the follicles themselves, which is why pattern hair loss runs in families and why two men with identical hormone levels can have very different hairlines. The second is the timescale. The British Association of Dermatologists says pattern hair loss tends to progress very slowly, over several years to decades, and that there is no cure. That slowness cuts both ways. A three-week hormone blip is a poor explanation for sudden shedding, and stopping a supplement is a poor route to reversing a process that took years to develop.

What the later evidence found

The 2009 study was not the last word. In 2021, an international team of creatine researchers published a review in the Journal of the International Society of Sports Nutrition that took the hair loss question head on. They counted twelve other studies that had investigated creatine and testosterone, using doses from 3 to 25 grams a day for periods from six days to twelve weeks. Two reported small, physiologically insignificant increases in total testosterone after six and seven days. The other ten reported no change. Five of the studies also measured free testosterone, the form the body uses to produce DHT, and none found an increase. Their summary was blunt: the current body of evidence does not indicate that creatine supplementation increases total testosterone, free testosterone, DHT or causes hair loss or baldness. They also noted that no study had reported hair loss or baldness in humans, and that intense resistance exercise itself can raise androgenic hormones, which complicates any attempt to blame the supplement rather than the training.

Then came the study the debate had been waiting for. In 2025, Lak and colleagues published the first randomised controlled trial designed to answer the hair question directly, in the same journal. Forty-five resistance-trained men aged 18 to 40 were randomly assigned to 5 grams of creatine monohydrate a day or a placebo of maltodextrin for twelve weeks. Thirty-eight completed the study. Blood was drawn at baseline and at twelve weeks to measure total testosterone, free testosterone and DHT. And for the first time, hair was actually measured: the researchers used a Trichogram test and a FotoFinder system to assess hair density, follicular unit count and cumulative hair thickness.

The result was unambiguous. There were no significant differences between the creatine and placebo groups in any hormone, including DHT and the DHT to testosterone ratio, and no significant differences in any hair growth parameter. Total testosterone rose in both groups over the twelve weeks and free testosterone fell in both, changes that were independent of supplementation and most likely reflect training. The authors concluded that the study provides strong evidence against the claim that creatine contributes to hair loss. It is one trial, with 38 finishers, and twelve weeks is short for a hair study. But it is the only trial that has ever measured the thing everyone was arguing about, and it found nothing.

So what happens when you stop creatine?

Stopping creatine does two things that are well documented, and neither of them is a hair treatment. First, your muscle creatine stores drain gradually. The International Society of Sports Nutrition position stand puts the washout at about four to six weeks for stores to return to baseline, and the biopsy studies behind that figure agree at about four weeks. Hultman and colleagues found muscle creatine no different from baseline thirty days after the last dose. Nothing in those studies found stores falling below where they started, so stopping does not leave you depleted, just back to your unsupplemented level. The water weight that comes with saturated stores fades over the same period, and the performance edge on short, high-intensity efforts fades with it. The muscle you built while training stays, provided you keep training.

Second, and this is the gap in the evidence, nobody has measured what happens to DHT after stopping creatine. The 2009 study measured DHT while people were taking it. The 2025 trial measured DHT while people were taking it. No study has tracked DHT or hair through a washout period. So the claim that stopping creatine lowers DHT is an inference, not a finding. It is a reasonable inference, given that muscle stores return to baseline in a month, but it is not data, and it should not be presented as data. If the DHT rise in 2009 was real, it would be expected to fade as the stores drain. If it was a quirk of a small study that never replicated, there was nothing to fade in the first place.

There is also a timing problem that catches people out. Hair operates on a delay. When follicles are pushed into their resting phase, called telogen, the hairs stay in place for about three months before they shed. Shedding that appears today usually reflects something that happened two to four months ago. That means two things. If you stop creatine today and your shedding continues for another two months, that does not prove stopping failed; those hairs were already on their way out. And if your shedding started two months after you began creatine, the timing looks suspicious but proves nothing on its own, because any number of triggers from the same window could be responsible.

If your hair is thinning on creatine, what to check first

Before deciding about creatine, work out what kind of hair loss you actually have, because the pattern points to the cause. Pattern hair loss, the DHT-driven kind, is gradual and patterned: a receding hairline, thinning at the crown, or diffuse thinning across the top in women. It progresses over years. Telogen effluvium, the shedding kind, is sudden and diffuse: hair coming out all over the scalp, often in handfuls in the shower, usually starting about three months after a trigger such as illness, major stress, surgery, a crash diet or a new medication. The British Association of Dermatologists notes that telogen effluvium usually recovers on its own within about six months once the trigger has passed, and that no medication speeds up regrowth. The NHS adds that losing 50 to 100 hairs a day is normal, and that hair loss caused by a medical condition or stress usually stops or grows back once you recover.

That distinction is practical. If your shedding is sudden, diffuse and started a few months after a stressful event, creatine is a long way down the list of suspects, and stopping it will not shorten the three-month lag built into the hair cycle. If your thinning is gradual and patterned and runs in your family, it is androgenetic alopecia, and it was probably coming anyway. Creatine may or may not have nudged it, but stopping creatine will not reverse miniaturisation that took years to develop.

Either way, the right next step is a proper assessment rather than a supplement experiment. The NHS advises seeing a GP if you are worried about hair loss, if it is sudden or patchy, or if it is affecting your wellbeing. A GP or dermatologist can check the pattern, look at the scalp, and test for the common reversible causes that get missed: iron deficiency, thyroid problems, vitamin D deficiency and medication effects. Those are worth ruling out before you blame a supplement, because they are treatable and creatine is not the likely culprit.

If the diagnosis is pattern hair loss, the treatments with evidence are not supplement changes. Minoxidil 5 percent, applied to the scalp, may slow progression and act as a hair growth stimulant. Finasteride, a prescription tablet, reduces DHT levels, which may slow hair loss and possibly help regrowth. Neither is a cure, and both only work for as long as they are used. That is the honest comparison to keep in mind: the interventions that actually change DHT do so by a large, measured amount and still only slow the process. Quitting a supplement with no proven effect on hair is not in the same category.

Keep taking it or stop? A practical way to decide

There is no rule here, only a trade-off, and it depends on what matters more to you. If your hair worries you and you would rather not carry even a theoretical risk, stopping costs little. Creatine is cheap, the performance edge is modest, and your training gains stay if you keep training. Stop, give it a fair test, and judge the result on a realistic timeline: nothing meaningful can be judged before three to six months, because that is how long the hair cycle takes. Take dated photos of your hairline and crown under the same light once a month, so you are judging evidence rather than anxiety.

If you stop and the shedding continues unchanged after six months, you have your answer. Creatine was not the cause, and you can restart it knowing that. If the shedding slows, you still have not proven causation, because telogen effluvium resolves on its own in about six months anyway, and pattern loss fluctuates. But you will have made a decision you can live with, which is worth something.

If you keep taking it, do so with the evidence in mind rather than the fear. The largest review of the field found no effect on testosterone, free testosterone or DHT. The only trial that measured hair directly found no effect on hormones or hair. The one study that found a DHT rise never measured hair, never replicated, and kept DHT inside the normal range. That is not a guarantee. It is the strongest evidence available, and it points in one direction.

One practical note either way: skip the loading phase if you restart. The 2009 DHT rise, such as it was, appeared during a 25 gram a day loading week, and the 2025 trial that found no effect used a flat 5 grams a day with no loading. A standard 3 to 5 gram daily dose reaches full saturation in about three to four weeks without loading. There is no evidence that loading is safer or riskier for hair, but if the loading week is the part that worries you, there is no reason to do it.

Frequently asked questions

Can stopping creatine reverse hair loss?

Probably not. No study has shown that creatine causes hair loss, so stopping creatine is unlikely to reverse hair loss. The only trial to measure hair directly, a 2025 randomised controlled trial, found no effect of creatine on hormones or hair. If your hair is thinning, the cause is most likely pattern hair loss or a shedding episode with another trigger, and neither reverses by stopping creatine.

Does creatine cause hair loss?

There is no direct evidence that it does. The concern comes from a single 2009 study of twenty rugby players that found a rise in DHT, the hormone linked to pattern baldness, but never measured hair at all. A 2021 review of twelve further studies found no effect of creatine on testosterone or DHT, and a 2025 trial that measured hair density and follicle health directly found no differences between creatine and placebo over twelve weeks.

Does creatine raise DHT?

One small 2009 study found DHT rose by 56 percent after a week of high-dose loading and stayed 40 percent above baseline during maintenance, while testosterone did not change. But the DHT values stayed within the normal clinical range, the absolute rise was small, and the result has never been replicated. Twelve other studies reviewed in 2021 found no consistent effect on testosterone, and the 2025 trial found no effect on DHT at a standard 5 gram daily dose.

How long does creatine stay in your system after you stop?

Muscle creatine stores return to baseline in about four to six weeks after stopping, according to the International Society of Sports Nutrition position stand. The decline is gradual rather than sudden, and stores do not fall below their starting level. The performance edge and the extra water weight fade over the same period, but muscle built through training stays if you keep training.

Will my hair grow back if I stop taking creatine?

That depends on what caused the loss, not on the creatine. If the shedding is telogen effluvium, hair usually grows back over months once the trigger has passed, whether or not you stop creatine. If it is pattern hair loss, the follicles miniaturise gradually over years, and stopping creatine does not reverse that process. No study has tested stopping creatine as a hair loss treatment, so there is no evidence for regrowth from quitting.

Should I stop creatine if my hair is thinning?

It is a personal trade-off rather than a medical necessity. If the worry matters more to you than the performance benefit, stopping costs little and is easy to test over three to six months, which is the minimum time the hair cycle needs to show a change. But see a GP or dermatologist first, because the common reversible causes of hair loss, such as iron deficiency and thyroid problems, are worth ruling out, and pattern hair loss needs proven treatments rather than supplement changes.

What actually works for hair loss if I keep taking creatine?

The treatments with evidence for pattern hair loss are minoxidil 5 percent applied to the scalp, which may slow progression and stimulate growth, and finasteride, a prescription tablet that reduces DHT levels. Neither is a cure and both only work while they are used. A dermatologist can confirm the diagnosis and discuss whether either suits you, and can check for other causes before you change your supplement routine.

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. Clinical Journal of Sport Medicine. 2009;19(5):399-404. PMID 19741313. https://pubmed.ncbi.nlm.nih.gov/19741313/
• Lak M, Forbes SC, Ashtary-Larky D, Dadkhahfar S, Robati RM, Nezakati F, Khajevandi M, Naseri S, Gerafiani A, Haghighat N, Antonio J, Tinsley GM. Does creatine cause hair loss? A 12-week randomized controlled trial. Journal of the International Society of Sports Nutrition. 2025;22(sup1):2495229. PMID 40265319. https://pubmed.ncbi.nlm.nih.gov/40265319/
• Antonio J, Candow DG, Forbes SC, Gualano B, Jagim AR, Kreider RB, Rawson ES, Smith-Ryan AE, VanDusseldorp TA, Willoughby DS, Ziegenfuss TN. Common questions and misconceptions about creatine supplementation: what does the scientific evidence really show? Journal of the International Society of Sports Nutrition. 2021;18(1):13. PMID 33557850. https://pmc.ncbi.nlm.nih.gov/articles/PMC7871530/
• 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. Journal of the International Society of Sports Nutrition. 2017;14:18. PMID 28615996.
• British Association of Dermatologists. Hair loss male pattern (androgenetic alopecia): patient information leaflet. Updated June 2024. https://www.bad.org.uk/pils/hair-loss-male-pattern-androgenetic-alopecia
• British Association of Dermatologists. Telogen effluvium: patient information leaflet. https://www.bad.org.uk/pils/telogen-effluvium
• NHS. Hair loss. https://www.nhs.uk/conditions/hair-loss/

Related reading

• Creatine for Your Brain: What the New Sleep-Deprivation Trial Means for Self-Experimenters
• Creatine Without the Gym: What the New 12-Week Trial Found in Adults Over 45
• What Are the Potential Side Effects of Creatine for Women?