Amazon.com: GHK Cu Copper Peptide Serum Anti Aging Face Serum for Skin Firming, Wrinkle Reduction, Hydration & Collagen Boosting, 30ml(1 fl oz) : Beauty & Personal Care GHK Cu Peptide Progress: Week 3 Results 2 weeks in on GHK Cu and the glow is REAL., Brighter complexion, More even skin tone, Less breakouts, Softer fine lines, Thicker, fuller hair, This is just the beginning. Consistency is How to Measure and Inject GHK Cu (Copper Peptide for Skin and Tissue Repair) YouTube 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 Copper Peptide Collagen Boost & Skin Regeneration Calibrate Hydration