If youre playing with raw GHK Cu, heres the secret that makes it actually work on your skin: mix it with hyaluronic acid. , Not microneedling, not fancy devices just a clean HA serum as the Skin Perfection GHK Cu Copper Peptide Serum Booster, 1 Percent Blue Liquid For Face, Neck, Body, Hair, And Scalp, 0.5 oz Walmart.com Copper Peptide Serum Benefits: Complete Guide to GHK Cu Glimmer Goddess If you're short on time: , , Melissa from the lab is mixing the Activator & Copper Concentrate serum from NIOD's Copper Amino Isolate Serum 2:1 (CAIS2). , The colour change upon mixing is Rejuvenation and Youth with GHK Cu Peptide Treatment Dr. Ahmet zyigit