Help support your immune system with Natures Aid High strength Vitamin C 1000mg effervescent in natural orange flavour. Ingredients CITRIC Acid, Vitamin C (as ascorbic acid), Sodium bicarbonate, sweetener (Sorbitol), Sodium Carbonate, inulin, potato starch, Natural orange flavouring, Tri-Calcium Phosphate, sweetener (sucralose), Maltodextrin, beetroot powder, colouring (riboflavin Phosphate).