Viridian Ester C is a highly effective & highly absorbable patented form of vitamin C. Ester C is a neutral p H presentation of vitamin C, where the vitamin C is buffered to make it gentler on the stomach particularly where larger amounts are consumed. Ester C is absorbed faster & retained for longer than regular vitamin C, in fact it reaches the cells in more than four times the quantity when compared to regular vitamin C. Ingredients One vegetarian capsule provides Ester C 950mg providing Ascorbic Acid (Vitamin C) 750mg, Calcium 85.5mg, Threonic Acid 9.5mg, Vegetarian cellulose capsule 120mg. Directions Take one to three capsules daily with food.