AHK

A tripeptide studied in cosmetic and dermatological research for its role in signaling around hair follicle activity and skin matrix support.

In the literature, AHK appears most often in work focused on hair growth, skin health and anti-aging. Studies in this area tend to look at mechanisms and observed effects in laboratory and preclinical settings rather than outcomes in people, so the picture is best read as a map of where researchers have been curious — not as evidence of any benefit.

Because it is catalogued here under powder peptides, AHK also shows up in discussions of wound healing. Coverage across those topics varies widely in quality and depth, and much of it is early-stage. Reading the underlying research directly is the only way to judge how strong any particular finding is.