CollagenSi + Mg + D + C by Sotya is a dietary supplement designed for bone and muscle care. This product is composed of essential ingredients including collagen, magnesium, orthosilicic acid, and vitamins C and D. Magnesium and vitamin D are beneficial for normal muscle function and bone maintenance. Vitamin C plays a crucial role in collagen formation, vital for cartilage and bone health. The recommended use is four tablets daily, preferably with meals to ensure better absorption and efficacy.