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 Mitigating GHK Cu Injection Pain: Tips and Tricks Gabriel Alizaidy, MD, MS posted on the topic LinkedIn Multi Peptide + Copper Peptides 1% The Ordinary If youre using GHK Cu and it stings a little (which is common) this ones for you , In this reel Im sharing the small tweaks that have helped me make peptide injections way more comfortable Multi Peptide + Copper Peptides 1% The Ordinary