NIOD Copper Amino Isolate Serum 3 1:1 (CAIS 3) ingredients (Explained) NIOD CAIS 2; Copper Peptides in your routine YouTube 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 , 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