presentationsoluble fine white powder. per 1/4 teaspoon (1 gram): vitamin c 1000mg suitable for vegetarians.usage & administration vitamin c powders 1 to 3 grams daily. small intakes several times daily (freshly made up) are more beneficial than a large single daily dose. other information allergen advice see presentation section for ingredients listed in bold. the following list of allergens are excluded: wheat barley soya eggs milk (and milk products) lactose nuts sulphites celery fish shellfish yeast and gluten containing ingredients.cautions over 1000mg of vitamin c may cause mild stomach upset in sensitive individuals.storage instructions to be stored in a cool dry place and protected from light.legal category food supplement.