Many people think injecting peptides like BPC 157, GHK Cu, or TB500 directly over a painful area sends the peptide straight into the damaged tissue. But thats not how it works. When you inject Copper Peptides: Do You Really Need to Inject Them? Nubeean Noosa Subcutaneous Injection Sites and Instructions for Safe Self Administration Say hello to your skin's new BFF GHK Cu is a powerful peptide that supports collagen production, speeds healing, improves hair growth, and helps fight visible signs of aging. This tiny molecule GHK Cu Copper Peptide Benefits, Uses & Safety Intra V