Does Creatine Cause Hair Loss?

Key takeaways

• One 2009 study (van der Merwe et al., 20 subjects) reported raised DHT after creatine loading.
• That DHT finding has not been replicated in any subsequent trial.
• No study has measured hair loss as an outcome and found creatine caused it.
• DHT is the mechanism behind androgenic hair loss, so the concern is biologically plausible — but
  plausible is not the same as demonstrated.
• If you are genetically predisposed and anxious about it, the evidence-based intervention is
  5-alpha reductase inhibition, not avoiding creatine.

Where the claim actually comes from

In 2009, van der Merwe and colleagues gave 20 college-level rugby players creatine and measured
serum hormones. They reported a 56% increase in DHT after a seven-day loading phase, and a level that
remained elevated above baseline through a 14-day maintenance phase. Testosterone did not change.

That is the entire evidential basis for the creatine-hair-loss claim. The study did not measure hair
loss. It had 20 participants. And in the fifteen-plus years since, no trial has reproduced the DHT
result.

Why the concern is biologically plausible anyway

Androgenic alopecia is driven by DHT binding to receptors in genetically susceptible scalp follicles,
progressively miniaturising them. Anything that genuinely and persistently raised DHT would in principle
accelerate that process in a predisposed person.

So the mechanism is not absurd — it is why the claim persists. What is missing is evidence that
creatine actually produces a sustained, meaningful DHT elevation, and evidence that any such elevation
translates into measurable hair loss.

Why do doctors say not to take creatine?

Hair loss is rarely the reason. Where clinicians raise caution it is usually about kidney function in
people with existing renal impairment, or about the fact that creatine raises serum creatinine and can
therefore muddy a kidney panel.

That second point is worth flagging to whoever orders your bloods, because an unexplained creatinine
rise otherwise looks like a reason to investigate.

What is the actual downside of creatine?

Water retention is the real and universal one — 1–2kg of intramuscular water in the first fortnight.
Some people report gastrointestinal discomfort at higher single doses, which usually resolves by
splitting the dose or taking it with food.

Beyond that, the safety literature is reassuring. Trials running up to five years in healthy adults
have not found harm to kidney, liver or cardiovascular markers.

What the research actually shows

Antonio et al. (2021), reviewing common creatine misconceptions, addressed the hair loss question
directly and concluded there is no evidence creatine causes hair loss. The authors noted the
van der Merwe finding stands alone and that DHT was not measured in most other creatine trials, so the
question is under-studied rather than settled in creatine’s favour — an honest distinction worth
keeping.

What can be said fairly: no controlled trial has demonstrated hair loss from creatine, and the single
hormonal finding underpinning the concern has not replicated in over a decade.

Practical summary

If you have no family history of male pattern baldness, this is not a concern worth acting on. If you
do, understand that the genetic predisposition itself is doing the work — training, elevated natural
androgens and age matter far more than a supplement.

Anyone genuinely worried can take creatine and monitor their hairline, or address the actual
mechanism directly: finasteride inhibits the enzyme converting testosterone to DHT and has solid
trial evidence, though with its own side effect profile worth reading properly. Topical options in the
hair products range work through a different, vascular mechanism and stack with it.

Frequently asked questions

Should I stop creatine if my hair is thinning?

Thinning while taking creatine is not evidence creatine caused it — androgenic alopecia progresses on
its own timeline. A dermatologist can assess the pattern properly.

Does creatine raise testosterone?

No. Studies measuring testosterone alongside creatine consistently find no change, including the 2009
study that reported the DHT rise.

Is there a form of creatine that avoids this?

No, and the question assumes a mechanism that has not been established. Monohydrate remains the form
with the evidence base.