Copper Uglies lets talk about it , If youve started GHK Cu injectable peptide and noticed a temporary worsening in your skin (dullness, breakouts, or uneven texture), youre not alone. This Copper Peptides vs Retinol: Do You Need Both? Nubeean Noosa What Is GHK Cu Peptide? Ever heard of the "Copper Uglies"? It sounds scary, but it's actually a sign of over enthusiasm! Copper peptides are incredible for skin remodeling, but they work on a "break down and