BULK POWDERS Pure OptiZinc Tablets, 30 mg, Pack of 90. Contributes to blood test levels and the maintenance of normal skin. A premium source of zinc in a simple supplement. Powered by 30 mg zinc in each tablet. Purposely formulated to be highly bioavailable, which helps it to become absorbed by the body. Zinc contributes to normal testosterone levels in the blood, normal immune system function and maintenance of normal hair and skin. Available in a convenient tablet form that only needs to be taken once per day.