Vitamin C Buffered Powder was designed for high dosing of vitamin C and for vitamin C “flushing,” which may help determine one’s individual need for vitamin C. Adding the alkalizing minerals calcium, magnesium and potassium results in a less acidic form of vitamin C that is better tolerated (less stomach upset) and provides the additional benefits of calcium, magnesium, and potassium supplementation such as alkalizing effects and bone mineralization.*