Dietary Supplement Gluten and Excipient-Free Manufactured in a GMP Compliant Facility A powerful antioxidant, vitamin C is a water-soluble vitamin necessary to form collagen in bones, cartilage, muscle and blood vessels. It also aids in the absorption of iron. For patients who want to supplement their diet with additional vitamin C, our buffered formulas combines potassium/ magnesium ascorbate with lemon bioflavonoids including hesperidin and rutin. Buffered vitamin C has a pH of 4.4. Nourishes tissue growth and repair Supports adrenal and immune function Powerful antioxidant