The Ordinary - 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
Deciem NIOD CAIS : The Copper Peptide Review - Bois de Jasmin
NIOD: The Skincare That You Need to Know About - Escentual's Blog