Does Creatine Cause Hair Loss? The DHT Study Explained

No study has ever shown that creatine causes hair loss. The concern traces almost entirely to a single 2009 trial that measured a hormone marker, not hair follicles, not shedding, not thinning. Understanding what that study actually did changes the conversation completely.

The 2009 study everyone cites

The paper is van der Merwe et al., published in the Clinical Journal of Sport Medicine in 2009. Researchers gave 20 male college rugby players either creatine or a placebo for three weeks. The creatine group loaded at 25g per day for seven days, then dropped to 5g per day for the remaining two weeks.

What they measured was dihydrotestosterone (DHT) and testosterone. DHT rose by around 56% during the loading week and remained about 40% above baseline by the end of the study. Testosterone did not change significantly.

What they did not measure: hair loss, hair follicle miniaturisation, or any clinical marker of androgenic alopecia. Not one hair was counted. The word "hair loss" does not appear in the study's findings.

Why DHT and hair loss are not the same thing

DHT is a potent androgen derived from testosterone. In people who are genetically predisposed to androgenic alopecia, DHT can bind to receptors in scalp hair follicles and shorten the growth cycle over time. That mechanism is real and well-established.

But elevated DHT does not cause hair loss in everyone. Whether follicles respond to DHT depends on genetics, specifically on androgen receptor sensitivity inherited from both sides of the family. Someone without that genetic predisposition can have high DHT and keep a full head of hair. Someone with it may be losing hair before any supplement enters the picture.

The 2009 study showed a transient hormonal change in 20 people. It said nothing about whether any of those 20 men lost hair, were predisposed to lose hair, or would lose hair in future. Drawing a causal line from that paper to "creatine causes baldness" is a substantial leap.

Has any other research replicated the DHT finding?

Frankly, the evidence is thin on both sides. A handful of studies have looked at creatine and androgen levels; results have been inconsistent. Some have found no significant change in DHT. No large, pre-registered trial has specifically set out to measure creatine's effect on DHT with hair loss as an endpoint. That gap is worth saying plainly: the question has not been settled, and anyone telling you it definitively does or does not cause hair loss is going further than the data allows.

What we do have is decades of research into creatine's safety profile more broadly. Creatine monohydrate is one of the most studied sports supplements in existence. The evidence on creatine's general safety is reassuring across a wide range of populations and durations. Hair loss is not among the established adverse effects listed in systematic reviews.

What the loading dose question adds

The 2009 study used 25g per day for the first week — a classic loading protocol. The DHT spike was largest during that phase. It is worth noting that a loading phase is not required to saturate muscle creatine stores; it simply gets there faster. Whether you need a loading phase at all is a separate question, but anyone particularly concerned about transient hormonal changes might reasonably prefer to skip loading and use a standard daily dose instead.

The authorised intake for the performance benefit is 3g per day. Creatine increases physical performance in successive bursts of short-term, high-intensity exercise, and that effect is obtained with a daily intake of 3g.

Who should take the concern seriously

If you have a strong family history of androgenic alopecia — particularly if you are already noticing some thinning — the honest answer is that the uncertainty is not fully resolved. No study clears creatine completely on this point, because no study has looked carefully enough. That is a different thing from evidence of harm, but it is also not a clean bill of health.

If hair loss is a genuine concern for you personally, speak to your GP or a dermatologist before starting creatine. They can assess your individual risk factors in a way that no supplement article can.

What creatine Pump House sells

If you decide creatine is right for you, Pump House keeps it simple. The micronised creatine monohydrate powder is a single ingredient with no additives, sweeteners or fillers — 60 servings of 5g per tub. If you prefer a tablet, the creatine monohydrate tablets deliver 1,000mg per tablet; three tablets a day reaches the 3g level linked to the authorised performance claim. Neither format requires a loading phase.

The hair loss question is legitimate. It deserves a straight answer rather than dismissal or alarm, and the straight answer is: one study found a DHT rise, no study has found hair loss, and the science has not looked hard enough to call it closed. Speak to a doctor if you have personal reasons to worry.