Ascorbate (vitamin C) is a highly potent aqueous-phase antioxidant in plasma, which has been shown in vitro to retard LDL oxidation. USANA Vitamins Supplements Booster C 600™ has a special blend of immunity-supporting ingredients. It contains zinc, echinacea, and elderberry and includes USANA’s own proprietary vitamin C supplement Poly C as well. Booster C 600 is also the perfect seasonal companion to USANA’s other supplements that support immunity health: USANA Proflavanol® C100, USANA® Probiotic, Pure Rest™, and USANA’s Vitamin D supplement.

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