Buffered C Powder makes it easier for individuals with a sensitive or compromised digestive system to take a higher amount of vitamin C. It also provides calcium, magnesium, and potassium. Vitamin C (ascorbic acid) is a key antioxidant, helping protect cells throughout the body from free radical damage.* It also plays an integral role in the production of cellular energy, in addition to helping to maintain healthy cholesterol levels already in the normal range and maintaining healthy immune function.* Taking a high amount of vitamin C – several grams daily – has been advocated for optimizing both immune function and antioxidant support.* But taking a high amount can be a challenge for individuals who have a sensitive or compromised digestive system. Thorne's Buffered C Powder supplies not just vitamin C, but also calcium, magnesium, and potassium mineral-ascorbates that serve as a buffer, which allows sensitive individuals to take a larger amount of vitamin C with ease and comfort.**