I get a lot of questions about our SuperPeptide Serum specifically why it's such a vibrant shade of blue. Swipe through to learn why that Deep Sapphire is a marker of GHK Copper Peptide GHK Cu Tripeptide 1 HealthyDerm Copper Peptides GHK Cu Beef Tallow for Skin: Blue Balm with Methylene Blue, Manuka Honey & Vitamin E Natural Face and Body Moisturizer for Mature, Dry & Sensitive Skin 2OZ Copper Peptides GHK Cu Beef Tallow for Skin: Blue Balm with Methylene Blue, Manuka Honey & Vitamin E Natural Face and Body Moisturizer for Mature, Dry & Delicate Skin 2oz GHK Cu Blue Copper Peptide Serum