Which is the active form of ascorbic acid?
Ascorbic acid is the standard form of vitamin C. Calcium ascorbate is ascorbic acid bound to calcium. It also provides a supplemental form of calcium. Magnesium ascorbate is ascorbic acid bound to magnesium. It is also a supplemental form of magnesium. There is also a fat-soluble form of vitamin C, called ascorbyl palmitate.