Copper Amino Acid Chelate
Copper Amino Acid Chelate is a tier 1 form of Copper, used in 1,347 on-market products and providing 30.0% elemental copper by weight.
1,347
on-market products
tier 1
quality tier
30.0%
elemental fraction
Basis: Cu(C2H4NO2)2, pure 1:2 stoichiometric chelate, MW 211.67 (AAFCO preferred ratio; commercial raw material may be diluted with excess glycine, lowering the actual %)
Why this tier: Copper glycinate was the form used in a human RCT (DiSilvestro 2012) that raised erythrocyte SOD1 and plasma ceruloplasmin.
Source: DiSilvestro RA et al. 2012, Metabolism 61(9):1242-6, PMID 22444781