Progressive Laboratories Multi-Scorb is a sustained release form vitamin C that does not upset the digestive system, even in high doses. 

Mineral ascorbates do not lower stomach pH or cause irritation. Since the body can only absorb a certain amount of the vitamin during a given period of time, sustained release also allows for better absorption.

Ingredient

Amount Per Serving..... %DV

Vitamin C (as mineral ascorbates) .....1000 mg .....1667%

Calcium (as calcium ascorbate) .....50 mg .....5%

Magnesium (as magnesium ascorbate)..... 30 mg..... 8%

Zinc (as zinc ascorbate)..... 3 mg..... 20%

Manganese (as manganese ascorbate)..... 3 mg..... 86%

Potassium (as potassium ascorbate) .....60 mg .....<1%

Citrus Bioflavonoid 5X Complex™ (as undiluted hesperidin, naringin and rutin) .....125 mg..... *

Other Ingredients

gelatin (capsule), rice flour, leucine.

Dosage

Two vegetable capsules, once daily or more.