Copper peptide questions we get asked all the time , How often should you use it? Do you need to avoid the sun?, If youre new, start once daily (evenings are great), then build up if your skins Advanced GHK Cu Neck & Face Serum Premium Quality Neurogan Health 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), Neurogan + Health GHK CU Copper Peptide 120 MCG Tablets PrettyStick GHK Cu Peptides Benefits for Anti Aging Skin Rejuvenation How to Use With Micro Infusion