Ester C is a unique form of vitamin C containing non-acidic mineral ascorbates and naturally occurring metabolites (powerful boosters that help your body efficiently absorb vitamin C). Ester C's patented manufacturing process neutralizes the pH, making Ester C much gentler on the digestive system than ordinary ascorbic acid. We have combined this powerful antioxidant with bioflavonoids,rose hips and acerola to give you a potent, well rounded immune system booster and protector. Now available in both 1000 Mg. tablets or 625 Mg. capsules.