GHK CU Revive Amino GHK CU If your GHK injection site gets irritated try this 1. Dilute it by adding more water to the syringe 2. Let it sit until it reaches room temperature Also, make sure you're Squalane + Copper Peptide (GHK Cu) Rapid Plumping Serum In Vitro and in Vivo Studies of pH Sensitive GHK Cu Incorporated Polyaspartic and Polyacrylic Acid Superabsorbent Polymer ACS Omega GHK Cu Peptide: Hair Regrowth for Thinning & Alopecia