GHK Cu Copper Peptide Neck & Face Serum Buy Thymalin 99% Pure Peptide Direct Peptides Summary of my experience with peptides so far. PS. Forgot to add Melanotan 2. I did a short course in an attempt to reverse gray hair. Had to stop it on the Snapklik.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