Ghk cu Peptide Face Serum NEW Cobalt Blue Bottle 2 Oz Etsy Two Ingredients. Real Hair Transformations. How Neurogan Health's GHK Cu Serum Is Changing What Customers Expect From Hair Care Ways2Well 12 weeks in, and my skin has NEVER looked better! GHK peptides are doing their thing., Alright, I need to give you an updateit's been 12 weeks since I started using GHK peptides from Transcend, and GHK Cu before and after : r Biohackers GHK Cu before and after : r Biohackers