Brand: Allergy Research GroupColor: BlueFeatures: Contains Ester-C patented buffered ascorbic acid with calcium, non-acidic to support higher doses Bioavailability enhanced vitamin C, with bioflavonoids for broad immune and antioxidant protection* Suggested Use: Take 1 or 2 capsules one or two times daily between meals, or as directed Free of wheat and gluten, dairy, eggs, soy, fish, shellfish, peanuts, tree nuts, and yeast Since 1979 Allergy Research Group has committed to using pure and low allergy potential ingredients Binding: Health and Beautymodel number: 70080Part Number: 70080Details: Esterol contains vitamin C in the form of Ester-C calcium ascorbate, and the bioflavonoids quercetin, rutin, and proanthocyanidins from grape seed extract. Several studies suggest that the unique structure of Ester-C may make it more readily absorbed and less rapidly excreted than other forms of vitamin C.* Rapid cellular uptake and delayed renal excretion of ascorbic acid are conducive to providing optimum cellular concentration for biochemical activity.* Ester-C has a pH of 7.0, potentially reducing acidity and improving bowel tolerance.* Bioflavonoids work synergistically with vitamin C.* Since 1979, Allergy Research Group has used only the purest, and whenever possible, lowest allergy potential natural ingredients available. Many very sensitive individuals who react to supplements in general can tolerate Allergy Research Group products. Strict quality control procedures are followed in every stage of production, including inspection, manufacturing, packaging, and storing. Allergy Research Group fully discloses all active and inactive ingredients on every product label, allowing you to make informed choices for your nutritional support. Physicians and healthcare practitioners around the world depend on Allergy Research Group for their patients' nutritional support. This brand originated with the ground-breaking oxidant/antioxidant work of Stephen Levine, Ph.D.