Amazon.com: GHK Cu Copper Peptide Supplement, Anti Aging & Hair Growth Support, Improves Skin Elasticity & Firmness, Thicker, Fuller Hair, Easy Absorption, Precisely Dosed, 90 Vegan Capsules : Health & Household 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 and skin peptides (topical) Skin regeneration and wrinkle reduction Longevity Protocols Organic Copper Peptide GHK Cu Anti Aging Moisturizer Lightweight Hydrating Cream