C-1000 provides a potent dosage of this key vitamin and is blended with Rose Hips and Bioflavonoids, which are natural synergists to Vitamin C. Vitamin C is perhaps the most popular vitamin. It is consumed in a supplemental form by millions of people across the world for its antioxidant properties, which are well-documented in medical research.Each tablet contains:Vitamin C (as Ascorbic Acid) 1000 mgRose Hips (Rosa canina) (Fruit)  (Standardized to contain 1.3% Vitamin C) 25 mgCitrus Bioflavonoids 25 mg   (from Citrus limon, Citrus paradisi and Citrus sinensis)(Fruit Peel) (Standardized to contain 37% Hesperidin)Non-Medicinal Ingredients: Cellulose, Tablet Coating (hypromellose, stearic acid (vegetable source), sunflower lecithin, triethyl citrate), Magnesium Stearate (vegetable source). Adult Dosage: Take 1 tablet daily with meals. Consult a health care practitioner for use beyond 4 months.