Cu Peptide Before and After: What to Expect for Skin and Hair GHK CU Cosmetic for Healthy Skin Aging and Wrinkle Support Skin Cancer Update! Haven't posted here lately, I've been working on my brand DEKKA + In August my doctor found skin cancer in my lower lip and cut it out. Shortly after 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