Understanding Looksmaxxing and Skincare Transformations GHK Cu: The Science Behind the Copper Peptide Transforming Skin Repair and Regeneration Meto blog 12 weeks in, and my skin has NEVER looked better! GHK peptides are doing their thing., Alright, I need to give you an updateit's been 12 weeks since I started using GHK peptides from Transcend, and GHK Cu (50mg) Alpha BioMed The Only Peptide that Builds Collagen, Muscle, and Hair (longevity peptide)