Officially started my "copper uglies" phase of GHK CU, phase is NOT for the weak. No pin pain, but my skin is purging and I hate it GHK Cu Research Guide: Copper Peptide Overview and Laboratory Research HealthyDerm Copper Peptides GHK Cu Beef Tallow for Skin Blue Balm with Methylene Blue Manuka Honey and Vitamin E Natural Face and Body Moisturizer for Buy Glow Peptide Online GHK Cu + BPC 157 + TB 500 Your copper peptide product should be this exact blue. If it isn't, you already have your answer. GHK Cu is blue because of coordination chemistry, not dye. The Cu ion at the center GHK Cu Blue Copper Peptide Serum