New from American Health are Ester-C Effervescent Vitamin C Packets in a natural orange flavor. The powder dissolves in 4–6 fl. oz. of water, which “delivers the advanced active immune system support and potent antioxidant activity,” says the firm. The formula includes 1,000 mg of Ester-C, essential vitamins such as B6 and B12, plus electrolytes. SRP: $17.99, 21 ct.