Biossance Squalane + Copper Peptide Rapid Plumping Serum Copper Peptides Before and After: Visible Skin Improvements Explained Hubmed In under 2 weeks my wrinkles are softened, my skin is firmer, and my glow is restored. Aging may be inevitable, but looking it is optional! You can neglect your skin Before vs. after 3 months of GHK Cu peptide therapy smoother texture, more even tone, and skin that looks healthier overall. Small peptide, big difference