GHK Cu Copper Peptide for Hair Loss: Results, Mechanism, and What to Expect 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 A Dermatologist's Take on the Copper Peptide (GHK Cu) Trend Rigid flexible nanocarriers loaded with active peptides for antioxidant and anti inflammatory applications in skin ScienceDirect People are turning themselves into lab rats': the injectable peptides craze sweeping the US Well actually The Guardian Copper Peptide (GHK Cu): Clinical Uses, Stability & Compounding Tips