Meet the ingredient your skin has been waiting for. GHK Cu, or Copper Tripeptide 1, is one of the most researched anti ageing actives in skincare. It firms. It renews. It supports collagen. And now GHK Cu Copper Peptide Anti Aging Serum Advanced Repair Deep Hydration Youth Revival 30ml Luxury Facial Serum TikTok Shop Ghk cu Peptide Face Serum NEW Cobalt Blue Bottle 2 Oz Etsy 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 1% GHK CU solution: is this applied directly on skin or diluted further? : r DIYaesthetics