GHK Cu Peptide 100mg For Copper Binding Research 99% Pure Copper Peptides (ghk cu) Great for DIY 1 Gram Etsy Not all copper peptide serums are formulated the same Before you buy one, make sure you're actually getting pure GHK Cu at the right concentration not just a diluted blend. We spent Let's talk about one of my FAVORITE glow peptides: GHK Cu GHK Cu (Copper Peptide) is a naturally occurring peptide in your body that plays a HUGE role in healing, repair, and overall