Sublingual GHK Cu TruHealth Physical Therapy My friend Andy Hnilo uses GHK copper peptides in his Alitura skin care line, which helped him recover with almost no scarring from a horrific car accident that broke his jaw in five The Effect of the Human Peptide GHK on Gene Expression Relevant to Nervous System Function and Cognitive Decline GHK Cu may Prevent Oxidative Stress in Skin by Regulating Copper and Modifying Expression of Numerous Antioxidant Genes