TSTR Super Bio Vitamin C capsules - buffered This Solaray product is based on Two-Stage, Time-Release Technology. This means, that 50 % of the contents is released immediately, and the other half within the next 12 hours. By taking two capsules during mealtime, you can guarantee a continuous flow of Vitamin C for your body. The product contains calciumcarbonate and magnesiumoxide, to build a buffer against the natural acidity of Vitamin C. A capsule contains 500 mg Vitamin C and 250 mg bioflavonoids. Bioflavonoids are water-miscable substances, which are often found in fresh fruits and vegetables, next to Vitamin C. Bioflavonoids increase the absorption of Vitamin C in the body. Which is better? Natural or synthetically produced Vitamin C? The determination whether a substance is natural or synthetic, is not a matter of origin, but a matter of molecular structure. When looking at the molecules of a simple substance like Vitamin C, one could not identify whether it stems from an apple or wheter it is synthetically manufactured from corn. Neither can our bodies identify this. In this case Ascorbic acid is Vitamin C, and Vitamin C is simply Ascorbic acid. It is true that Vitamin C never occurs by itself in nature, but always in connection with bioflavonoids and other active plant substances, which increase absorption of Vitamin C, and which prolong the length of time the vitamin is in the body, and which have some helping qualities of their own (for example protecting blood vessels). Super Bio Vitamin C is produced with the help of highpharmacological processes and it is not extracted from fruits. The pure and natural Vitamin C molecules then are binded to Acerola or other flavonoids, to create an environment which is beneficial for Vitamin C.