How does AHK-Cu work?
Copper-binding tripeptide (alanine-histidine-lysine) similar to GHK-Cu in family but specialized for follicular activity. Activates dermal papilla cells in vitro. In plain terms, AHK-Cu is a peptide promoted for hair growth. A copper-binding tripeptide cousin to GHK-Cu, promoted specifically for hair-follicle support. Limited human data, most evidence is in vitro and topical formulation. Mechanistic detail like this comes largely from preclinical and early research, the human picture is limited.
What people use it for
- Users targeting hair-follicle support specifically
- Stack add-on alongside GHK-Cu for skin + hair routines
- Topical-only researchers
References
- The effect of tripeptide-copper complex on human hair growth in vitro — Pyo HK, Yoo HG, Won CH, Lee SH, Kang YJ, Eun HC, Cho KH, Kim KH — Archives of Pharmacal Research, 2007;30(7):834-9
Pepdex is an editorial reference, not medical advice. Peptides vary in legal and approval status by country, many are research compounds without full human safety data. Talk to a qualified clinician before starting anything.
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Last updated 2026-06-06.