Solaray Reacta-C With Black Elderberry Veg Capsule is the vegetarian dietary supplement contains 500 mg of vitamin C and 200 mg of black elderberry as key components. Reacta-C® is a clinically researched & patented 24-hour support formula that delivers vitamin C to the body all day & night for greater immune support. Vitamin C, also known as ascorbic acid, is a water-soluble vitamin that plays a crucial role in various bodily functions. It is an antioxidant, meaning it helps protect cells from damage caused by free radicals. Black elderberries have been traditionally used for their potential health benefits. They are rich in antioxidants and flavonoids. Both vitamin C and black elderberry are believed to support the immune system. Vitamin C plays a crucial role in immune function, while elderberry is often promoted for its potential to provide immune support. Elderberry also contains antioxidants, contributing to its potential health benefits. Solaray Reacta C with black elderberry Veg Capsule appears to combine the benefits of vitamin C with the potential immune-supporting properties of black elderberry, providing a convenient and potentially well-rounded supplement option. Reacta-C is a highly advanced vitamin C formula that provides a reacted complex of strontium calcium ascorbate with L-threonate. This complex of strontium ascorbate and calcium ascorbate with L-threonate is a non-acidic formula designed to be fast-acting, long-lasting, and gentle on the stomach. Indole-3-carbinol and a highly synergistic vitamin C support base are included for maximum bioavailability and effectiveness.