Super Bio C Buffered Vegan Two Capsules Daily, 1000mg, 100ct, Veggie Capsule -Bio C Buffered is formulated using a patent-pending, two-stage, timed-release concept. Half of the Super Bio C Buffered is gradually released over a 12-hour period. Taking one capsule of Bio C Buffered in the morning and another 12 hours later helps to extend the availability of Vitamin C to the body over a 24-hour period. Bio C Buffered also contains Calcium Carbonate and Magnesium Oxide to buffer the natural acidity of Vitamin C. -Great for building and maintaining a healthy immune system. -Time released helps lower the consumption of capsules daily.