Ultra Potent-C^® 1000 is a proprietary, patented vitamin C formula that features a buffered delivery system designed to help prevent the potential stomach upset sometimes associated with high vitamin C intake. Ultra Potent-C 1000 may help support healthy immune function and is a good source of antioxidants from vitamin C. Preliminary scientific research suggests that vitamin C in the form of Ultra Potent-C may result in improved uptake of the vitamin by white blood cells when compared to regular ascorbic acid. 90 ct bottle.

Vitamin C 1,000 mg 1,111% Niacin 70 mg 438% Calcium 40 mg 3% Sodium 10 mg <1% L-Lysine 33 mg ** Citrus Bioflavonoid Complex  [standardized to 45% (14.4 mg) full spectrum bioflavonoids] 32 mg ** Tetrasodium Pyrophosphate 14 mg ** Alpha D-Ribofuranose 13 mg ** Xylitol 9 mg ** L-Cysteine 8 mg ** L-Glutathione 5 mg **