The power of Vitamin C is combined with Quercetin, a bioflavanoid found in buckwheat. Contains buffered Vitamin C, which is better absorbed and is less harsh on the stomach. Antioxidants help protect against cellular damage, and combat free radicals in the body. They are often used for allergies, respiratory and immune system support. Ingredients: Rose Hips, Bioflavanoids, Calcium Ascorbate, Quercetin, Acerola, Hesperidin and Rutin. An average-size horse uses 1/2 oz. per day. Combines well with Equinacea, Garli+C and Bleeders Blend.