Solgars calcium ascorbate crystals powder 125 g is a buffered formulation providing 100 percent pure and fully reacted calcium ascorbate vitamin c is a water soluble nutrient with revered antioxidant properties in addition to helping to fight cell damaging free radicals it also promotes collagen formation which is important for healthy nails skin hair and joints vitamin c supports respiratory and immune system health promotes blood vessel integrity enhances healthy blood flow and is b