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 Close up of Blue Copper Peptides GHK Cu in Pipette. Beauty serum for anti aging beauty routine Stock Photo Alamy GHK Cu Doesn't Destroy Peptides Here's What Really Happens YouTube GHK Cu Peptide: Benefits for Tissue Repair, Healing, and Recovery Revolution Health & Wellness New research suggests a blood based aging marker may not only predict lifespan, but also respond to intervention. Link in bio. #longevity #geroscience #glycans #agingmarker #biomarkers GHK Cu is getting a lot of attention right now, and for good reason. This is not just a skin peptide. It's a copper binding tripeptide with documented effects on gene expression, collagen synthesis,