? NPN : 80055098 Manufactured in Canda. ✓ Third Party Tested for Heavy Metals Microbiology. ✓ 100 natural and non-GMO: ProteinCo's Vitamin C supplement is made from 100 natural ingredients and is non-GMO, ensuring a high-quality and safe product for consumption. ✓ Rapid and time-release formula: The combination of ascorbic acid and calcium ascorbate in this supplement ensures both immediate absorption and extended release of Vitamin C. This allows your body to benefit from the positive effects of Vitamin C for a longer period of time compared to taking ascorbic acid alone. ✓ Unique nutrient combination: This Vitamin C supplement is formulated with two forms of Vitamin C (ascorbic acid and calcium ascorbate) along with added calcium. This combination offers extensive benefits over taking each nutrient separately, providing a more powerful and synergistic effect. ✓ Combination of Ascorbic Acid Calcium Ascorbate - 500 mg per capsule 180 capsules.