It also makes no sense that creatine would affect testosterone or DHT levels. Creatine isn't in this metabolic pathway for testosterone and DHT:
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I am personally very sensitive to scalp inflammation. I get a telltale itch whenever I stop treating hair loss. Creatine has never had any discernable effect for me, and I have long periods on and off creatine for many years.
I respect that others will decide to stop creatine based on that study alone. I personally would want to see more studies and understand the mechanism for this result.