Vitamin C (ascorbic acid) is a key antioxidant, protecting 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, preventing LDL oxidation, promoting wound healing, 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.