Natures Aid Low Acid Vitamin C 1000mg with added Rosehips and Citrus Bioflavonoids Vitamin C supplementaton is not advisable for people who sufer from renal stones. Vitamin C (as Ascorbic Acid, Sodium Ascorbate and Calcium Ascorbate), Microcrystalline Cellulose, Di-Calcium Phosphate, Rosehip Powder, Citrus Bioflavonoid prep (Citrus Bioflavonoids, Maltodextrin), Hydroxypropylmethylcellulose, Anticaking Agents (Silicon Dioxide, Vegetable Source Magnesium Stearate), Maize Starch. Take 1 tablet per day with food. 1 x Natures Aid 1000mg Vitamin C Low Acid 30 Tablets.