Definitive Guide on Peptides for Skin and Hair Care Infusion Clinic ABQ GHK cu hard spots at injection site : r Peptides 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 Say hello to your skin's new BFF GHK Cu is a powerful peptide that supports collagen production, speeds healing, improves hair growth, and helps fight visible signs of aging. This tiny molecule GHK Peptide Injection and GHK Cu Benefits, Uses ,safety