The Effect of the Human Peptide GHK on Gene Expression Relevant to Nervous System Function and Cognitive Decline Ever heard of GHK Cu peptide? It's a naturally occurring copper peptide that helps repair tissue, stimulate collagen, and support skin healing. When used in injectable form, it works at a deeper level GHK Cu Peptide for Skin & Hair Facial Serum & Scalp Solution Injectable GHK Cu: Beginner's Guide to Copper Peptide GHK CU 50mg Peptify Starting GHK Cu peptide that will support collagen production, hair growth , and overall skin rejuvenation. #peptide #ghk cu #wellness #epcw #suhesthetics