Every dose of Nature's Bounty Immune 24 Hour + provides advanced, long-lasting immune support with 1,000 mg of Ester-C. Clinically studied to stay in your white blood cells for up to 24 hours, Ester-C is the only Vitamin C with 24 hour immune support. Highly bioavailable Ester-C can increase Vitamin C levels in the body, which is important for white blood cell function. White blood cells play a vital role in the immune system and contribute to the health of the upper respiratory tract. This formula contains Vitamin D, Vitamin A, and Zinc for extra immune plus antioxidant support. It also includes Elderberry & Echinacea. Immune 24 Hour + rapid release softgels provide 9 essential nutrients to help keep you healthy.

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