GHK Cu: The Regenerative Peptide Everyone's Talking About If you're looking for next level skin support and cellular rejuvenation, it's time to learn about GHK Cu (Copper Peptide). This naturally occurring peptide declines GHK Cu peptide therapy for skin regeneration and anti aging Get glowing skin with GHK CU peptide therapy GHK CU is a naturally occurring plasma peptide that significantly declines during aging. GHK CU exhibits anti aging properties by: stimulating collagen production improving skin elasticity and 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