The short answer: probably not. The concern about creatine and hair loss traces back to a single 2009 study, but more recent and rigorous research has found no connection between creatine supplementation and hair loss. Here’s what the evidence actually shows and why this idea took hold in the first place.
Where the Concern Started
In 2009, a study of college-aged rugby players in South Africa found that three weeks of creatine monohydrate supplementation raised levels of DHT (dihydrotestosterone), a hormone involved in pattern baldness. During a seven-day loading phase, DHT levels jumped 56% above baseline. After switching to a lower maintenance dose for 14 more days, DHT remained 40% above baseline. The ratio of DHT to testosterone also increased by 36% during loading and stayed 22% elevated during maintenance.
This was a legitimate, peer-reviewed finding published in the Clinical Journal of Sport Medicine. But here’s the critical detail: the study never measured hair loss. It measured hormones in the blood. The leap from “DHT went up” to “creatine causes baldness” happened mostly on internet forums and in supplement discussions, not in the research itself.
Why DHT Matters for Hair
DHT is a potent form of testosterone that plays a role in androgenetic alopecia, the medical term for common pattern baldness. When DHT binds to receptors in hair follicle cells, it can trigger a process called miniaturization. Over time, affected follicles produce thinner, shorter, and lighter hairs until they eventually stop producing visible hair altogether. This is what causes the receding hairline and thinning crown that characterize male pattern baldness.
The key word here is “can.” DHT only shrinks follicles in people who are genetically susceptible. Your hair follicles need to have a specific sensitivity to androgens for DHT to cause damage. That sensitivity is inherited, which is why pattern baldness runs in families. Many people walk around with high DHT levels and full heads of hair because their follicles simply aren’t wired to respond that way.
The Study That Directly Tested Hair Loss
For over a decade, the 2009 rugby study stood alone. No one replicated its DHT findings, and no one actually looked at whether creatine users lost hair. That changed with a 2025 randomized controlled trial published in the Journal of the International Society of Sports Nutrition, designed specifically to answer this question.
Researchers recruited 45 resistance-trained men between the ages of 18 and 40 and randomly assigned them to take either 5 grams of creatine monohydrate per day or a placebo for 12 weeks. Unlike the 2009 study, this trial measured both hormone levels and actual hair follicle health. The results were clear: there were no significant differences between the creatine and placebo groups in DHT levels, the DHT-to-testosterone ratio, or any hair growth measurements. This was the first study to directly assess hair follicle health following creatine supplementation, and it found no evidence that creatine contributes to hair loss.
The researchers also noted that their results contradict the earlier 2009 findings on DHT conversion entirely. So not only did creatine fail to cause hair loss, it didn’t even raise DHT in this more recent trial.
What Else Could Explain Thinning Hair
People who take creatine tend to exercise intensely, and intense exercise itself can affect hair. Heavy resistance training and prolonged endurance exercise raise cortisol, the body’s primary stress hormone. When cortisol stays elevated over weeks or months, it can push hair follicles prematurely into their resting phase, a condition called telogen effluvium. This causes a noticeable increase in shedding that typically shows up two to three months after the stressful period. The hair usually grows back once the stress resolves.
Nutritional deficiencies are another common culprit. Athletes and bodybuilders who follow restrictive diets to hit specific body composition targets often fall short on iron, zinc, or protein, all of which are essential for healthy hair growth. Inadequate calorie intake alone can trigger shedding. If someone starts creatine at the same time they ramp up training intensity or tighten their diet, they might blame the supplement for hair changes that actually stem from overtraining or under-eating.
And then there’s simple timing. Male pattern baldness typically becomes noticeable in a person’s 20s and 30s, which is exactly when most people start taking creatine. Hair loss that was going to happen anyway can easily get attributed to whatever supplement someone recently added to their routine.
Does Genetic Risk Change the Picture?
If you have a strong family history of pattern baldness, you might wonder whether creatine poses a unique risk for you specifically. The logic seems reasonable: even if average DHT levels don’t change for most people, maybe your genetically sensitive follicles would react differently to any temporary hormone fluctuation.
The honest answer is that this hasn’t been studied in a targeted way. The 12-week trial found no hair changes across its entire group, but it wasn’t designed to isolate people with high genetic susceptibility. That said, the fact that creatine didn’t raise DHT at all in this more rigorous study significantly weakens the theoretical pathway. If creatine isn’t reliably increasing DHT in the first place, genetic sensitivity to DHT becomes less relevant.
The Bottom Line on Creatine Safety
Creatine monohydrate at 3 to 5 grams per day is one of the most extensively studied sports supplements available, and it has a strong safety profile at that dose. The standard recommendation is 3 to 5 grams daily, with no advantage to loading at higher doses. Harvard Health notes that higher loading doses simply put more stress on the kidneys without improving results.
Based on the current body of evidence, creatine does not appear to cause hair loss. The one study that raised the concern measured hormones, not hair, used a small sample, and has not been replicated. The one study that actually measured hair found nothing. If you’re noticing thinning while taking creatine, your training stress, diet, and family genetics are all more likely explanations worth exploring.