Our Zinc & Copper tablets use chelated, bioavailable forms of picolinate and bisglycinate which are better absorbed by the body and reduce stomach discomfort. (From 10 mg of Copper Bisglycinate). Bulking Agents (Micro Crystalline Cellulose, Di Calcium Phosphate), Zinc Picolinate, Copper Bisglycinate, Anti Caking Agents (Magnesium Stearate, Silica Dioxide).