AHK-Cu
Overview
Mechanisms
Evidence
Anecdotes
[educational]Copper tripeptide-3 (Ala-His-Lys; one aa off GHK-Cu), part of albumin; one in-vitro human-hair-growth study (via follicle growth); far less data than GHK-Cu; possible hair option, even combined with GHK-Cu — but for any non-hair use, prefer GHK-Cu. — GHK-Cu deep dive