Wellness peptide craze: why people are injecting drugs 'not for human consumption' Fraley Whats the difference between GHK Cu (copper peptide) as a topical cream vs an injection? In this video I break down: What GHK Cu is and why its used in anti aging skincare What results GHK Cu (Copper Peptide) isn't just another trend. It's a naturally occurring peptide in our bodies that plays a vital role in healing, collagen production, skin regeneration, and even hair support. Here's all Cu Peptide Before and After: What to Expect for Skin and Hair Injectable Peptides for Anti Aging? A Dermatologist Explains GHK Cu