CollagenSI Mg+D+C is a dietary supplement that contains an effective combination of hydrolyzed collagen, marine magnesium, and essential vitamins such as C and D. Its formulation is designed to contribute to the normal functioning of muscles and the maintenance of bones under normal conditions. Additionally, vitamin C is essential for normal collagen formation, benefiting both bones and cartilage. Each dose includes 80 mg of vitamin C, 5 mcg of vitamin D, 346 mg of magnesium, 2100 mg of collagen, and 120 mg of orthosilicic acid. It is recommended to take 4 tablets daily with meals for maximum benefits of this product.