Copper Amino Isolate Serum 3 1:1 harnesses the power of two key ingredients to target visible What's the difference between NIOD CAIL vs. CAIS NIOD Say hello (again) to NIOD Copper Amino Isolate Serum 3 1:1 (CAIS 3 1:1)., CAIS 3 1:1 is the third generation of NIOD's (multi) award winning Copper Amino Isolate Serum. The formula respects NIODs 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 Amazon.com: GHK Cu Copper Peptide Supplement, Anti Aging & Hair Growth Support, Improves Skin Elasticity & Firmness, Thicker, Fuller Hair, Easy Absorption, Precisely Dosed, 90 Vegan Capsules : Health & Household Favorite copper peptide : r PanPorn