Glow from within with GHK Cu Copper Peptide , This powerhouse peptide supports collagen production, skin repair, and hair follicle health, helping improve skin firmness, radiance, and support 7 days on GHK Cu. Here's my honest update. I'm not going to hype this up because the real results don't even start until week 46. But something is already happening. Subcutaneous Injection Sites and Instructions for Safe Self Administration AHK CU Dosage Guide: How Much to Use Daily Neurogan Health GHK Cu (Copper Peptide) LeadWest Medical GHK Cu Peptide Dosage How to Use Copper Peptides, Injections Neurogan Health