What Do Peptides Do for Skincare: The Ultimate Guide Biossance GHK Cu peptide = one of the most powerful ingredients for skin regeneration , It helps improve elasticity, smooth fine lines, and boost that natural glow., Once you start theres no going back , 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 Two Weeks on GHK CU by Rory Uphold The Ladies Room