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Seasonal Support FormulaAntioxidant ProtectionNon-GMOA Dietary Supplement Vegetarian/VeganHow it works: C-1000 + Zinc-15 combines vitamin C with zinc for powerful immune system support. This product utilizes TRAACS™ Zinc Bisglycinate a form of zinc that has been shown in clinical studies to have superior bioavailability compared to other forms of supplemental zinc.