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. Metabolic Maintenance uses only USP-quality (99.5% or higher purity) vitamin C, with a pH equal to 2.4. For patients who want to supplement their diet with additional vitamin C, their buffered formulas combine low-acidity potassium/ magnesium ascorbate with lemon bioflavonoids including hesperidin and rutin. • Nourishes tissue growth and repair • Supports adrenal and immune function* • Powerful antioxidant • Gentler on sensitive stomachs Ingredients Serving size: 2 Capsule Servings per container: 90 Ingredient Quantity Vitamin C 1049 mg Citrus Bioflavonoids 150 mg Other Ingredients: Hydroxypropyl methylcellulose. Suggested Use / Directions: As a dietary supplement, take 2 capsules daily with meals, or as directed by a healthcare practitioner. Serving Size: 2 capsules Amount Per Serving: Vitamin C ... 500mg(as Ascorbic Acid, Calcium Ascorbate, Sodium Ascorbate, and Ascorbyl Palmitate)Calcium ... 12mg(as Calcium Ascorbate)Sodium ... 12.5mg(as Sodium Ascorbate)Citrus Bioflavonoids ... 75mg*(Standardized to 25% bioflavonoids) Other Ingredients: Hydroxypropyl methylcellulose This product is Egg Free, Gluten Free, Nut Free and Dairy Free. Size 180 caps