GHK Cu Peptide Serum: Copper Peptides for Skin Firmness Mythos Mythos Skincare Absolute GHK cu Stem Cells & Peptide Hair Growth Serum and Shampoo MTS Mall of California GHK Cu Copper Peptide Benefits, Uses & Safety Intra V Copper uglies = temporary., When you start GHK Cu, you can get a spike in free copper breakouts, texture, irritation., Its not the peptide failing. Its your body adjusting., Happens fast Can You Use GHK Cu Peptides with Vitamin C Serum? Expert Guide