GHK Cu for Skin Rejuvenation WeCare Pharmacy Absence of evidence isnt evidence of absence its a popular argument, but its not how we should be guiding treatment decisions. In this short, I respond to a comment about GHK Cu injections for Cu Peptide Before and After: What to Expect for Skin and Hair Aseir Custom GHK Cu + Carbon 60 = The Tag Team Hair Loss Treatment You Can Use At Home Jay Campbell