Fraley Whats 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 its used in anti aging skincare What results 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 Before and After Pictures Topical GHK Cu Skin Results, Face Serum Reviews & Photo Results Neurogan Health GHK Cu Peptide: What It Does for Body Composition and Metabolic Health