GHK Cu: The Midlife Peptide Your Skin Has Been Missing (and Why It's Not Just About Wrinkles) Relished Food Holistic Nutrition Before their use in skincare, Copper Peptides were originally introduced in wound healing research. Listen to the sounds of copper peptides and stay tuned to learn more 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), Amazon.com: BLUPROTIN Copper Peptides Serum for Face, GHK CU Peptide with Propylene Glycol&Copper Tripeptide 1&Hyaluronic acid, Anti Aging Anti Wrinkle Moisturizing Restore Collagen Enhance Skin Elasticity 30ml : Beauty & Personal Care Two Weeks on GHK CU by Rory Uphold The Ladies Room Why I Use GHK Cu: The Copper Peptide That Talks to Your Cells