Neurogan Health, copper peptide GHK CU, 120 mcg, 60 tablets iHerb GHK Cu: The Regenerative Peptide for Skin, Hair, and Healing Pulse & Remedy 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), You're injecting what now?! We've been flooded with questions about injectable peptides, so here's the bottom line: I would not inject these into myself or anyone I care about. Note: This is Why Are People Injecting Themselves with Peptides? The New Yorker GHK CU: Skincare Precautions & Proper Use TikTok