NIOD Copper Amino Isolate Serum 3 1:1 (CAIS 3) ingredients (Explained) Hi : ) CAIS is NIOD's Copper Amino Isolate Serum. It contains GHK peptides bound to copper which is known as copper peptides (GHK Cu) that are found in our plasma and are good What's the difference between NIOD CAIL vs. CAIS NIOD NIOD CAIS 2; Copper Peptides in your routine YouTube Copper Amino Isolate Serum 3 1:1 harnesses the power of two key ingredients to target visible GHK Cu peptide = one of the most powerful ingredients for skin regeneration , It helps improve elasticity, smooth fine lines, and boost that natural glow., Once you start theres no going back ,