Go Zinc Complex combines three forms of zinc with vitamin C, selenium, manganese, and vitamin B6. Zinc is the main nutrient here and is commonly used for immune support, skin repair, hormone health, and reproductive health. Using more than one form of zinc is intended to provide a broader absorption profile while keeping the elemental zinc dose moderate and practical.
The extra nutrients each add something useful. Vitamin C supports immune and antioxidant function, selenium adds antioxidant and immune support, manganese contributes to connective tissue and enzyme activity, and vitamin B6 supports normal hormone and nervous system function. Go Zinc Complex is a fuller zinc product, so it can make more sense than plain zinc if you want several supporting nutrients in the same capsule.