Calcium ascorbate is a gentle non-acidic form of vitamin C. The soluble fine crystals also provide a useful amount of calcium. Powders are ideal for those who find tablets difficult to swallow or those who require large amounts of this vitamin. The soluble fine crystals can be easily added to drinks or sprinkled on to foods, and each gram provides almost 900mg of vitamin C plus just over 100mg of calcium. Vitamin C contributes to collagen formation for the normal function of the skin, gums and the immune system. It also contributes to the reduction of tiredness and fatigue and to the protection of cells from oxidative stress. Soluble fine white crystals. Per 1/4teaspoon (1 gram): Vitamin C 897mg Calcium 103mg Allergen Advice The following list of allergens are excluded: Wheat, Gluten, Barley, Soya, Eggs, Milk and milk products, Lactose, Nuts, Sulphites, Celery, Fish, Shellfish and Yeast.Cautions Over 1000mg of Vitamin C may cause mild stomach upset in sensitive individuals.