GHK CU Beverly Hills Rejuvenation Center Copper Peptide (GHK Cu): Clinical Uses, Stability & Compounding Tips Fraley What's the difference between GHK Cu (copper peptide) as a topical cream vs an injection? In this video I break down: What GHK Cu is and why it's used in anti aging skincare GHK Cu is a peptide that helps improve skin by boosting collagen and healing damage. It can be used as a cream (topical) or an injection. The cream is great for wrinkles, scars, and hydration, but it GHK Cu Topical vs Injection Which is the Better Copper Peptide Form? Fraley What's the difference between GHK Cu (copper peptide) as a topical cream vs an injection? In this video I break down: What GHK Cu is and why it's used in anti aging skincare