Botox in a Bottle? Meet GHK Cu: The Ultimate Prescription Only Copper Peptide Cream Looking for firmer, smoother, more radiant skin without irritation? GHK Cu (Copper Tripeptide 1) is a powerful regenerative ingredient that GHK Cu (Copper) For Sale (50mg) Core Peptides Peptide Labz Copper Peptide Hair Growth Serum, 10% GHK cu, 5% AHK cu, Rejuvenates Follicles Walmart.com Amazon.com: Skin Perfection Copper Peptide Serum GHK CU 1% for Face & Hair Copper Peptides for Skin, Hair, & Scalp 1% Blue Liquid for Face, Neck, Body, Scalp Multi Use Serum Booster with Buy GHK Cu 100mg (Copper Peptide) 99% Purity, USA Made