This form of vitamin C is gentle on the stomach and minimises acidic irritation that can occur from other forms of vitamin C such as ascorbic acid. Calcium Ascorbate 1500mg. Ascorbic Acid 1350mg. Once dispatched, no recalls can be made.
I have been using this product for many years and totally (obviously) recommend it. I know it is the best thing to arrest any illness. This is the most bio-available source of vit c.