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 Our brains are wired to recognize faces through emotion and overall impression, not by cataloging every detail. This is called facial pattern satiationwhere our brains quickly stops noticing small, individual features and What Is GHK Cu? The Copper Peptide That Rejuvenates Skin GHK vs GHK Cu Without Copper, Basic Peptide Neurogan Health Copper, Collagen, and Controversy: Inside the GHK Cu Buzz The Effect of the Human Peptide GHK on Gene Expression Relevant to Nervous System Function and Cognitive Decline