Does creatine cause hair loss? Based on the best evidence available today, there is no good proof that it does. The fear comes almost entirely from one small 2009 study of 20 rugby players, which found that a high loading dose of creatine raised blood levels of DHT — a hormone linked to pattern hair loss — but that study never measured hair at all: no shedding, no hair density, no follicles. Since then, a 2025 randomised trial — the first study designed to test the question directly — gave 45 resistance-trained men either creatine or a placebo for 12 weeks and measured both their hormones and their hair, and found no significant difference in DHT, hair density, follicular unit count or hair thickness between the two groups. Reviews agree: at the standard dose of 3–5 grams a day, creatine has no consistent effect on testosterone or DHT. That does not mean creatine is proven 100% safe for everyone — no supplement can honestly carry that claim, and the 2025 trial was 12 weeks long and studied men aged 18–40 — but the evidence does not support the claim that creatine causes hair loss. If your hair is shedding, the more likely causes are genetics, stress, diet, deficiencies or medications, and those are worth checking first.
Does Creatine Cause Hair Loss? What the Studies Show
No study has ever shown that creatine causes hair loss. The claim rests on a chain of reasoning, not on a direct observation. Step one is real — DHT is involved in pattern hair loss. Step two is shaky — one small study suggested creatine might raise DHT. Step three has never been shown — that creatine users actually lose more hair. When a later study finally tested step three directly, by measuring hair itself rather than guessing from blood tests, it found nothing. The internet usually tells this story backwards: a forum post says creatine raised DHT, a video says DHT causes baldness, and the two get joined into “creatine causes baldness” as if it were proven. It was hypothesised, in 2009, on the basis of a hormone measurement in 20 young men, and it has never been replicated.
The Myth and Where It Started
The creatine hair-loss scare did not start in a clinic. It started in gyms and on forums, and it has a very specific origin: a single study published in 2009. Before that study, creatine’s reputation was almost entirely about strength, power and muscle recovery. After it, a new worry spread — that the supplement helping you lift more might be quietly costing you your hair.
The myth also feels true because most people start creatine in their late teens and twenties — exactly when male pattern hair loss often first shows — and because heavy training, dieting, poor sleep and stress all affect hair and tend to arrive with a new supplement routine. When several changes happen at once, the newest one takes the blame.
None of this means your concern is silly. Hair loss is distressing, and if you noticed shedding after starting a supplement, it is sensible to ask whether the two are connected. The honest answer is that the connection has been looked for and not found — but the evidence has real limits, and this article states them plainly.
DHT, Hair Loss and Why the Link Sounds Plausible
To understand why the 2009 study caused such a stir, you need a short primer on DHT. DHT stands for dihydrotestosterone, a more potent form of testosterone, made when an enzyme called 5-alpha-reductase converts testosterone into DHT in tissues including the scalp, skin and prostate. DHT is a normal hormone with important roles. The problem is specific to hair follicles in people who are genetically sensitive to it.
In androgenetic alopecia — male and female pattern hair loss — DHT binds to receptors in genetically sensitive hair follicles and, over years, shortens the growth phase of each hair cycle. The follicle gradually miniaturises: each new hair grows back thinner, shorter and lighter, until eventually it stops producing a visible hair at all. That is why pattern hair loss follows its familiar shapes — a receding hairline and thinning crown in men, a widening part in women — rather than falling out all at once.
Two points matter for the creatine question. First, follicle sensitivity matters more than the blood DHT level alone: two men can have the same DHT level and very different hair, because sensitivity is largely inherited — which is why pattern hair loss runs in families. Second, the process takes years, and a small rise that stays within the normal range — as the 2009 study’s did — is a long way from proof of faster balding.
The 2009 Study Explained: What It Found — and What It Did Not Measure
The study at the centre of the whole scare is van der Merwe et al., published in 2009 in the Clinical Journal of Sport Medicine (PubMed PMID 19741313). It is worth describing carefully, because most summaries of it leave out the parts that matter most.
Who was studied. Twenty college-aged rugby players. That is a very small group, and a very specific one: young, male, trained athletes. The study was double-blind and placebo-controlled, with a crossover design — each player took creatine for a period and a placebo for a period, without knowing which was which — which is a genuine strength. But a finding in 20 young rugby players is a long way from a general truth about every creatine user.
What dose was used. The players took a loading dose of 25 grams of creatine per day for 7 days, followed by 5 grams per day for 14 days. That loading dose is important: 25 grams a day is five times the standard 3–5 gram daily dose most people take.
What it found. Serum testosterone did not change. DHT rose by 56% after 7 days of loading, and stayed 40% above baseline after 14 days of maintenance. The DHT-to-testosterone ratio rose by 36% after loading and stayed 22% above baseline. Those percentages sound dramatic, and they are the numbers quoted in almost every scare story. What is usually left out is that the DHT values stayed within the normal physiological range throughout.
What it did NOT measure. This is the critical point, and it is the one most summaries skip. The study never measured hair loss. It did not count shedding, it did not measure hair density, it did not examine follicles, and it did not photograph hairlines. It measured blood hormones only. Its authors did not claim that creatine causes hair loss — they reported a hormone change and noted that it could, in theory, be relevant to hair. The leap from “DHT went up in blood tests” to “creatine makes you bald” was made by other people, later, on the internet.
Has it been replicated? No. In the sixteen years since it was published, no other study has reproduced the finding. That is exactly what Cleveland Clinic’s Dr. Jacob Hill pointed to: “The study was very small, and it didn’t directly connect creatine to hair loss. What’s more, recent investigations haven’t replicated those results.” A single unreplicated result in 20 people is a starting point for more research, not a verdict.
The 2025 Trial That Measured Hair Directly
If the 2009 study is the reason the fear exists, the 2025 study is the reason it should be doubted. Lak et al., published in 2025 in the Journal of the International Society of Sports Nutrition (PubMed PMID 40265319; PMCID PMC12020143), is the first trial designed to directly test whether creatine affects hair — and the first study in this debate that actually looked at hair.
Who was studied. Forty-five resistance-trained men aged 18–40 were randomised to receive either creatine monohydrate or a placebo (maltodextrin) for 12 weeks. The trial was double-blind, so neither the men nor the researchers knew who was taking what. Thirty-eight men completed the study. That is still a modest sample, and it is still men only — but it is more than double the size of the 2009 study, and it was designed from the start around the hair question.
What dose was used. Five grams of creatine monohydrate per day — the standard maintenance dose that most people actually take. No 25-gram loading phase. This matters, because it means the trial tested the dose real users take, not an extreme short-term dose.
What was measured. Alongside the hormones — total testosterone, free testosterone, DHT and the DHT-to-testosterone ratio — the researchers measured hair itself: hair density, follicular unit count and cumulative hair thickness, using a Trichogram and a FotoFinder imaging system.
What it found. No significant group-by-time differences for any hormone or any hair outcome (p > 0.05). Creatine did not raise DHT in this trial, and it did not change hair density, follicular unit count or cumulative hair thickness compared with placebo. The authors’ conclusion was unusually direct for a scientific paper: there is “strong evidence against the claim that creatine contributes to hair loss.”
What it does not prove. The trial lasted 12 weeks, it enrolled only resistance-trained men aged 18–40, and it did not follow men with a strong family history of baldness for years. Pattern hair loss develops over years, not weeks, so a 12-week trial cannot rule out every long-term effect in genetically prone people. What the trial does show is that, over three months at the standard dose, creatine had no measurable effect on DHT or on hair — which is precisely the effect the myth predicts should have appeared.
Cleveland Clinic’s review of the question, published on its health site, reached the same conclusion in plainer language: a 2025 study showed creatine didn’t significantly affect DHT or hair density and thickness, and the 2009 study it is usually contrasted with was very small and never directly connected creatine to hair loss.
What the Reviews Say About Creatine and DHT
Individual studies can mislead; reviews that gather all the studies together are a better guide to what the evidence says overall. The most relevant review here is Antonio et al., published in 2021 in the Journal of the International Society of Sports Nutrition (PubMed PMID 33557850). It is an evidence-based review of common creatine misconceptions, and it examined 12 studies that measured testosterone and DHT in creatine users.
Its finding was straightforward: there is no consistent effect of creatine on testosterone or DHT at standard doses of 3–5 grams per day. Some individual studies found small changes; others found none; taken together, the pattern does not support a reliable hormone effect at the dose most people use. That fits with the 2025 trial, which found no DHT change at 5 grams a day, and it sits awkwardly with the 2009 study, which found a DHT rise at a 25-gram loading dose. The dose difference is the most likely explanation for the disagreement: a very high short-term loading dose may move DHT temporarily, while the standard maintenance dose does not appear to do so consistently.
It is also worth noting what the reviews do not say. They do not say creatine is risk-free for everyone. Cleveland Clinic’s guidance is clear that you should talk to a healthcare provider before starting any supplement, and that there is not enough evidence of safety in pregnancy and breastfeeding, or in people with diabetes or chronic kidney or liver disease.
Study Comparison — 2009 vs 2025 at a Glance
The two studies that matter most in this debate are easy to confuse, because both are about creatine and DHT. The table below puts them side by side so the differences are obvious: different sizes, different doses, different measurements, different results.
| Study | Year | Who | Dose | What was measured | What it found |
|---|---|---|---|---|---|
| van der Merwe et al., Clinical Journal of Sport Medicine | 2009 | 20 college-aged rugby players, double-blind placebo-controlled crossover | 25 g/day loading for 7 days, then 5 g/day maintenance for 14 days | Blood hormones only | Testosterone unchanged; DHT rose 56% after loading, 40% above baseline after maintenance; DHT stayed within the normal range; hair never measured; never replicated. |
| Lak et al., Journal of the International Society of Sports Nutrition | 2025 | 45 resistance-trained men aged 18–40, double-blind randomised placebo-controlled trial; 38 completed | 5 g/day creatine monohydrate for 12 weeks | Hormones PLUS hair (density, follicular unit count, cumulative hair thickness via Trichogram and FotoFinder) | No significant group-by-time differences for any hormone or hair outcome (p > 0.05); authors concluded “strong evidence against the claim that creatine contributes to hair loss.” |
| Antonio et al., J Int Soc Sports Nutr (review) | 2021 | Review of 12 studies measuring testosterone/DHT | Standard doses of 3–5 g/day | Testosterone and DHT across the included studies | No consistent effect of creatine on testosterone or DHT at standard doses. |
Read the table as a whole and the story is clear. The study that found a DHT rise used a high loading dose, measured hormones only, and has never been replicated. The study that measured hair directly, at the standard dose, found no effect on DHT or on hair. The review that gathered all the studies together found no consistent hormone effect at standard doses. That is not a tie. It is a weight of evidence that points one way — against the claim — even while leaving honest room for the limits set out above.
Why Your Hair Might Be Shedding Anyway If You Lift
Even if creatine is not causing your shedding, the shedding itself is real, and lifters have several genuine reasons to shed more hair than usual. If you started creatine and noticed more hair in the shower drain, the cause is more likely to be one of these — and several of them are fixable.
Genetics and DHT sensitivity. This is the single biggest factor in pattern hair loss, and it is the one you cannot change. If your father, uncles or grandfathers lost their hair early, your follicles are more likely to be sensitive to DHT, and your hair loss was probably going to begin around now whether or not you took creatine. Our guide to hair shedding vs hair loss explains how to tell pattern thinning apart from temporary shedding.
Stress and overtraining. Heavy training is a physical stressor, and intense training blocks or a sudden jump in volume can push more hairs into the shedding phase at once — a condition called telogen effluvium. The shedding usually shows up two to three months after the stressful period, which is another reason the timing can mislead.
Diet and rapid weight loss. Cutting sharply, dropping calories or cutting out whole food groups can trigger shedding. Hair is not essential for survival, so when the body is short of energy or nutrients, hair growth is one of the first things it cuts back on. Rapid weight loss is a well-known trigger for telogen effluvium, and it often coincides with starting a supplement routine.
Vitamin D and iron deficiency. Both are common, both affect hair, and both are more common in people who train indoors, eat restricted diets or donate blood regularly. Low vitamin D is linked to shedding, and low iron — with or without anaemia — is one of the most common correctable causes of hair loss in both men and women. A simple blood test can check both, and both are fixable. Our article on vitamin D deficiency hair loss covers the signs, the test to ask for, and what correction looks like.
Medications and hair habits. Several medicines can increase shedding, including some acne treatments, blood-pressure drugs, antidepressants and steroids — including anabolic steroids, which are a very different thing from creatine and which do raise DHT substantially. If you started any new medication around the same time as creatine, review it with your doctor before blaming the supplement. Bleach and heat also cause breakage, which looks like thinning even though the follicles are fine, and constant traction from tight caps or hairstyles can cause traction alopecia over time.
| Likely cause of shedding in lifters | How it shows up | What to do |
|---|---|---|
| Genetics / DHT sensitivity | Gradual thinning at the temples or crown, or a widening part, over months to years | See a dermatologist; discuss minoxidil and, for men, finasteride. |
| Stress or overtraining | Diffuse shedding all over the scalp, 2–3 months after a hard training block or stressful period | Ease training load, prioritise sleep, wait for the cycle to reset. |
| Diet or rapid weight loss | Diffuse shedding after a sharp cut or crash diet | Eat enough protein and calories; reintroduce variety; shedding usually slows within months. |
| Vitamin D or iron deficiency | Diffuse shedding, sometimes with fatigue or brittle nails | Ask your doctor for blood tests; correct the deficiency if found. |
| Medication | Shedding that began weeks after starting a new drug | Review the medication with your doctor; do not stop a prescribed drug on your own. |
| Hair habits (bleach, heat, tight styles) | Breakage and short pieces rather than hairs lost from the root | Reduce heat and bleach, use a gentle shampoo, loosen styles. |
Should You Stop Taking Creatine?
What the evidence says. The best available evidence — a 2025 trial that measured hair directly, and a 2021 review of 12 hormone studies — does not support stopping creatine for hair reasons. At the standard dose of 3–5 grams a day, no consistent DHT effect and no hair effect has been shown. Stopping is not a medical requirement on the basis of the evidence we have.
When it is still reasonable to pause and check. If your shedding started exactly when you began creatine, and nothing else changed at the same time — no new medication, no diet change, no stressful period, no new hair treatment — then it is reasonable to want to rule creatine out for your own peace of mind. Stopping for a few months is a personal choice, not a medical requirement. If the shedding stops after you stop, that is useful information — though still not proof, because shedding from stress or diet often resolves on its own in the same timeframe. If it continues after three to four months off creatine, creatine was almost certainly not the cause.
What to do instead of guessing. Get checked. A dermatologist can look at your scalp, measure your hair density and tell you whether you are seeing pattern hair loss, temporary shedding or breakage. A blood test can check vitamin D and iron. And a quick review of your medications, diet and training load will usually turn up a more likely suspect than creatine. If you want a plan for the hair itself while you wait, our guide on how to stop hair fall walks through the steps that help most people first.
A note on dose. If you are taking a loading dose — 20 to 25 grams a day — consider that the 2009 DHT finding came from exactly that kind of high dose, and that loading is not necessary. The standard approach is 3–5 grams a day from the start; it takes a few weeks longer to saturate your muscles, but it avoids the high-dose period entirely.
What Actually Helps Hair Loss
If your hair is thinning, the treatments that work are the ones with real evidence behind them — and they work whether or not creatine is in the picture. None of them is a miracle, all of them take months, and all of them work best when started early.
Get a proper diagnosis first. Pattern hair loss, temporary shedding and breakage need different treatments, and guessing wrong wastes months. A dermatologist can diagnose the cause with a scalp examination and, if needed, blood tests. That single appointment is worth more than a year of trying products at random. Our hair growth calculator can help you set realistic expectations about regrowth timelines once you know what you are treating — hair grows roughly half an inch a month, so visible change always takes months, not weeks.
Minoxidil. The most widely used over-the-counter treatment, applied to the scalp as a foam or liquid. It prolongs the growth phase of the hair cycle and can slow shedding and increase density in both men and women. It needs to be used consistently, and it takes three to six months to judge.
Finasteride (for men). A prescription tablet that blocks the conversion of testosterone to DHT, lowering DHT levels in the scalp. It is one of the most effective treatments for male pattern hair loss. It is for men only, it needs a prescription, and it has its own side-effect profile to discuss with your doctor.
Treat deficiencies. If blood tests show low vitamin D or low iron, correcting them can reduce shedding. This is one of the few causes of hair loss with a genuinely simple fix, and it is worth ruling out before spending money on anything else.
Scalp care and gentle handling. A healthy scalp grows better hair. That means a gentle shampoo suited to your scalp, not scrubbing aggressively, and giving bleached or heat-styled hair a break. If you are choosing products, our guide to the best shampoo for hair fall covers what to look for and what to avoid — and what shampoo alone cannot do, so you do not waste money expecting it to regrow hair.
What does not help. Expensive “DHT-blocking” shampoos, biotin megadoses without a deficiency, and unproven supplements marketed to lifters have little evidence behind them — money spent there is money not spent on the treatments that do work.
When to See a Doctor or Dermatologist
Most shedding is temporary and settles on its own. But some patterns deserve a professional look sooner rather than later, because early treatment works better and a few of them signal something other than ordinary hair loss.
See a doctor or dermatologist promptly if you notice patchy hair loss — round bald patches, or hair coming out in clumps — because that can be alopecia areata, which needs specific treatment. See one if shedding is rapid and severe, or if it has gone on for more than six months without slowing. Itching, redness, scaling, pain or sores on the scalp are also reasons to go: they suggest a scalp condition that needs treating, and no supplement change will fix it. A widening part, a visibly receding hairline, or a thinning crown that is getting worse month by month are worth an appointment too — those are the patterns where early treatment with minoxidil or finasteride makes the biggest difference. And if you have other symptoms alongside the shedding — fatigue, weight change, irregular periods, or a new medication — mention those, because they can point to a thyroid problem, a deficiency or a drug effect.
Bring a short history to the appointment: when the shedding started, what changed around that time (creatine, new medication, diet change, illness or stressful event), and a photo of your hairline from a year ago if you have one. That timeline is what lets a dermatologist separate a coincidence from a cause.
The Bottom Line on Creatine and Hair Loss
The claim that creatine causes hair loss has been repeated so often that it feels settled. It is not settled — and the direction of the evidence has changed since the claim was made. The fear comes from one small 2009 study that found a DHT rise at a high loading dose and never measured hair at all. The best study since then, a 2025 trial that measured hair directly at the standard dose, found no effect on DHT or on hair. Reviews of all the hormone studies agree that there is no consistent effect at standard doses. And in more than 500 published studies of creatine, hair loss has never appeared as a documented adverse effect.
That does not prove creatine is safe for everyone — no single trial can do that, and the 2025 trial’s 12-week window and men-only sample are real limits. But the honest answer to “does creatine cause hair loss” is: the evidence does not support the claim, and the study that started the fear never tested hair in the first place. If your hair is shedding, look first at genetics, stress, diet, deficiencies, medications and hair habits — and if you are worried, see a dermatologist.
Frequently Asked Questions About Creatine and Hair Loss
Does creatine cause hair loss?
There is no good evidence that it does. One small 2009 study found that a high loading dose raised blood DHT, but it never measured hair. A 2025 trial that measured hair directly — density, follicular unit count and thickness — found no effect of creatine on DHT or on hair at the standard 5 g/day dose. Reviews agree there is no consistent effect on testosterone or DHT at standard doses.
Will creatine make me go bald if baldness runs in my family?
If baldness runs in your family, your follicles are more likely to be sensitive to DHT, and pattern hair loss may develop whether or not you take creatine. The 2025 trial did not follow men with a strong family history of baldness for years, so it cannot rule out every long-term effect in genetically prone people. If you are concerned, talk to a dermatologist, who can assess your risk and discuss proven treatments such as minoxidil and, for men, finasteride.
Does creatine raise DHT?
At the standard dose of 3–5 g/day, the evidence says no consistent effect. A 2021 review of 12 studies found no consistent effect of creatine on testosterone or DHT at standard doses, and the 2025 trial found no DHT change at 5 g/day. The only study that found a DHT rise used a 25 g/day loading dose in 20 rugby players, the DHT values stayed within the normal range, and the finding has never been replicated.
Should I stop taking creatine if my hair is shedding?
The evidence does not require it — no trial has shown that creatine causes shedding. Stopping for a few months is a personal choice, not a medical requirement, and it can help you rule creatine out for your own peace of mind. A more useful first step is to see a dermatologist and check the common causes of shedding: genetics, stress, diet, vitamin D and iron levels, medications and hair habits.
How long would it take for hair to recover after stopping creatine?
There is no documented recovery timeline, because no trial has shown that creatine thins hair in the first place. Hair grows roughly half an inch a month, so if shedding had a reversible cause, visible improvement would take at least three to six months — but that timeline applies to shedding in general, not to creatine specifically. If your shedding continues three to four months after stopping creatine, creatine was almost certainly not the cause.
Is creatine safe for hair in women?
The trials that tested hair directly were done in men, so there is less direct evidence for women — but there is also no evidence of hair effects in women. No study has shown creatine causing hair loss in women, and hair loss has never appeared as a documented adverse effect of creatine in the safety literature. Women considering creatine should talk to a clinician first, especially during pregnancy or breastfeeding, where there is not enough evidence of safety.