doi: 10.1016/j.jchromb.2016.02.015 102 GolabiS.GhasemiS.AdelipourM.BagheriR.SuzukiK.WongA.et al
Two of the most commonly referenced forms are: GHK-Cu (Copper Tripeptide-1) AHK-Cu (Copper Tripeptide-3) While both belong to the copper peptide family, they are used differently in cosmetic formulation depending on whether the goal is skin-focused or scalp- and hair-focused performance
GHK-Cu Peptide: Benefits, Dosage and Results (2026) GHK-Cu at a Glance What it does: Anti-aging, skin repair, hair growth, wound healing Dosage: 1-2mg/day injectable or topical Results in: 2-4 weeks (skin), 6-8 weeks (hair) Cycle: 8-12 weeks on, 4 weeks off Cost: ~$50-80 for 100mg vial Side effects: Minimal mild injection site redness GHK-Cu widely known as the "glow peptide" is a copper-binding peptide your body produces naturally, but levels drop by more than 50% after age 60
de Heer, J., Rasmussen, C., Coy, D
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