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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

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Light protection using amber vials or foil wrapping prevents photo-oxidation of aromatic residues