Copper Peptide (GHK Cu) 2% Recovery Serum Two new treatments, now available Copper Peptide Skin Complex brings prescription grade GHK Cu Acetate to support skin repair and renewal at the cellular level. Lash Growth Serum combines bimatoprost and latanoprost, prescription strength Copper peptide questions we get asked all the time How often should you use it? Do you need to avoid the sun? If you're new, start once daily (evenings are great), Ghk Cu Best Time Of Day Injection