GHK Cu Peptide for Skin & Hair Facial Serum & Scalp Solution 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 youre rotating injection BEAUTY PEPTIDE DETAILS + TIPS + why this peptide is everywhere right now, GHK Cu (copper tripeptide) goes beyond surface level beautyits naturally found in the body but declines with age. Known Injectable Peptides for Anti Aging? A Dermatologist Explains GHK Cu GHK Cu Copper Peptide Collagen, Skin Rejuvenation & Hair Restoration