GHK Cu Peptide (50mg) Advanced Skin Rejuvenation & Healing Support The GHK Cu pen works. But needles at home were never the answer. We took the same clinically backed copper peptide complex and put it into a serum you can use in 30 seconds, GHK Cu is everywhere right now. Hair growth, skin repair, inject this and look 25 again., You can inject GHK for years, but if the body receiving the signal isnt set up to respond, nothing BEAUTY PEPTIDE DETAILS + TIPS + why this peptide is everywhere right now, GHK Cu (copper tripeptide) goes beyond surface level beautyits naturally found in the body but declines with age. Known