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 One of my favorite peptides is GHK Cu. It has made such a dramatic impact on my skin in just one cycle I've been shocked! It supports collagen, healing, and overall skin Amazon.com: Copper Peptide Hair Serum with Copper Tripeptide 1 Dual Peptide Scalp Treatment plus Licorice Root Extract : Beauty & Personal Care Copper Peptide Skincare Routine: How to Layer Peptides Glimmer Goddess USA Copper Peptide GHK Cu Powder, DIY Blue Copper for Best Skin 1g