Reacta-C by Solaray is a dietary supplement that provides 500 mg of vitamin C in a patented formula. Designed to offer prolonged immune support, its formulation includes a nutrient-rich complex with strontium ascorbate and calcium ascorbate, along with L-threonate. This combination generates a non-acidic, fast-acting, and long-lasting product that is gentle on the stomach. Additionally, it incorporates concentrates of lemon bioflavonoids, hesperidin, rutin, and acerola, which enhance the bioavailability of vitamin C. Ensuring potency, purity, and identity, Reacta-C is vegan, contains no GMOs, and is lab-verified. It is recommended to take one capsule daily with a meal or a glass of water.