NutriCology Buffered Vitamin C Powder Description: With calcium, magnesium, and potassium as ascorbate chelates in solution. Buffered Vitamin C provides macrominerals calcium, magnesium and potassium carbonates which become mineral ascorbates in solution with a buffered, alkalinizing action (pH 6.8 in water). Disclaimer These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease. Weight (lbs): 0.65