Creatine and hair loss is one of the most Googled questions in sports nutrition. It is also one of the most misunderstood. The short answer is that there is no peer-reviewed evidence directly linking creatine supplementation to hair loss in humans. The longer answer involves one study, a hormone called DHT, and a lot of context that typically gets left out.
Where the Concern Comes From: The 2009 DHT Study
Every claim about creatine and hair loss traces back to a single study published in 2009 by van der Merwe and colleagues. The study followed 20 college-aged rugby players in South Africa. Half took a creatine loading protocol for three weeks; half took a placebo. At the end of the study, the creatine group showed a statistically significant increase in serum levels of dihydrotestosterone (DHT) — approximately 56% above baseline during loading and 40% above baseline during maintenance.
DHT is a derivative of testosterone. In men who are genetically predisposed to androgenic alopecia (male pattern baldness), elevated DHT can accelerate hair follicle miniaturization. This is the mechanism behind hair loss treatments like finasteride, which work by blocking the conversion of testosterone to DHT.
So the logical chain being suggested is: creatine raises DHT, DHT can contribute to hair loss in genetically susceptible men, therefore creatine may accelerate hair loss.
That chain is theoretically possible. It is also almost entirely unsupported by direct evidence.
The Problems With That Study
The 2009 paper is the only published study to ever examine creatine and DHT. It has never been replicated. Here is what makes it insufficient as a basis for concern:
Sample size of 20. Splitting into two groups of 10, this is an extremely small study. Small studies are susceptible to chance findings that disappear at larger scales.
DHT stayed within the normal reference range. The absolute DHT values in the creatine group, even at peak, remained within the clinically normal range. The percentage increase sounds alarming; the absolute values were not abnormal by standard laboratory measures.
No hair loss was measured or observed. The study did not measure hair loss, hair follicle density, or any marker of alopecia. The jump from “DHT increased” to “creatine causes hair loss” is an inference, not a finding.
The ratio measured was DHT to testosterone, not absolute DHT. Some analyses of this study note that the DHT:testosterone ratio increased, which could reflect DHT rising, testosterone falling, or both. The interpretation is more complicated than headlines suggest.
It has never been replicated. Dozens of studies have examined creatine supplementation in the 15 years since. None have measured DHT changes as an outcome or reported hair loss as an adverse effect.
What the Broader Research on Creatine Actually Shows
Creatine monohydrate is the most studied supplement in sports nutrition. Over 500 peer-reviewed studies have examined its safety and efficacy. The documented side effect profile is minimal: occasional gastrointestinal discomfort at high doses during loading, and modest intramuscular water retention in the first one to two weeks.
Hair loss does not appear in the adverse effect literature. Not in short-term studies. Not in long-term studies examining creatine use over months. Not in the clinical safety reviews conducted by the International Society of Sports Nutrition, which has classified creatine monohydrate as safe for long-term use in healthy individuals.
Who Should Actually Be Cautious
If you have a strong family history of male pattern baldness — meaning your father and grandfather both lost significant hair in their twenties — the honest answer is that the question is not fully settled. The 2009 study has not been definitively refuted, it simply has not been replicated. You have a genetic predisposition that involves DHT sensitivity, and there is weak theoretical evidence that creatine may modestly influence DHT metabolism.
The operative word is weak. If this is a genuine concern, it is reasonable to discuss with a dermatologist or your doctor before supplementing. That is not a reason to assume creatine causes hair loss — it is a reason to make an informed personal decision.
For everyone else: there is no meaningful evidence that creatine at the standard 5g daily dose causes or accelerates hair loss.
The More Likely Explanation If You Are Losing Hair
If you started taking creatine and noticed increased hair shedding around the same time, the most likely explanations are:
Timing coincidence. Male pattern baldness often becomes noticeable in the late teens and early twenties — exactly the same age range when most people start taking performance supplements. The overlap in timing is frequently mistaken for causation.
Increased training stress. Heavy resistance training increases testosterone and, by extension, DHT more significantly than creatine supplementation does. If you started a new training program alongside creatine, the training itself is a more likely contributor to any hormonal shifts.
Nutritional deficits. Inadequate protein, iron deficiency, and insufficient zinc are all well-documented contributors to hair shedding. Zinc in particular is commonly deficient in athletes. These are far more established causes of diffuse hair loss than creatine.
The Bottom Line
No study has ever directly shown that creatine causes hair loss in humans. One small study showed a DHT increase that stayed within normal ranges and was never followed up with a hair loss measurement. That study has not been replicated in 15 years of creatine research.
The overwhelming weight of evidence positions creatine monohydrate as safe, effective, and without meaningful hair loss risk for the general population. If you have a specific genetic predisposition to androgenic alopecia and want certainty, consult a physician. For everyone else, the evidence does not support avoiding one of the most well-researched performance supplements available over this concern.
PeakFusion Creatine Monohydrate delivers 5g per serving, unflavored, and independently tested at 100.8% assay on Lot B25I013. If you have been on the fence because of this question, the research does not support it as a reason to hold off. The product page is here.
For more on creatine, read how long creatine actually takes to work and why creatine monohydrate outperforms creatine HCl.
PeakFusion supplements are not intended to diagnose, treat, cure, or prevent any disease. Consult a healthcare provider before beginning any supplement protocol.