Not all peptides are created equal and neither are our bodies., This is GHK Cu, a copper peptide (nasal spray) supplement from @NeuroGAN. I love experimenting, but I dont go in blind. My longevity Copper Peptide Barrier Cream Yunasence GHK Cu with Ceramides YUNASENCE GHK Cu Peptide Therapy Topical Cream BHive Management Organic Copper Peptide GHK CU Anti Aging Moisturizer Lightweight Hydrating Cream