Rapamycin & GHK Cu Cream LeadWest Medical If your GHK injection site gets irritated try this , 1. Dilute it by adding more water to the syringe , 2. Let it sit until it reaches room temperature , Also, make sure youre rotating injection GHK Cu Peptide: Hair Regrowth for Thinning & Alopecia The Effect of the Human Peptide GHK on Gene Expression Relevant to Nervous System Function and Cognitive Decline Glow from within with GHK Cu Copper Peptide , This powerhouse peptide supports collagen production, skin repair, and hair follicle health, helping improve skin firmness, radiance, and support