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Zinc Chelate from Standard Process has 91% of the daily value of zinc per tablet. Zinc can be purchased at any health food store, but what makes this different are the ingredients Standard Process adds to their supplements to make them more usable by the body. While this is not a liver product, the three ingredients in the proprietary blend support the liver, which helps to boost the immune system and promote the creation of new cells. This is one of the best zinc products on the market, and we highly recommend talking to your practitioner about starting it.