CA, Herbal [Structural] provides the body with natural sources of calcium, magnesium and silicon. Magnesium works synergistically with calcium, and silicon strengthens body tissues, including the sheath surrounding the nerves. Herbal CA also contains natural sources of vitamins A and C. The formula consists of: Alfalfa herb Horsetail herb Oatstraw stem Plantain herb Marshmallow root Wheat grass herb Hops flowers These herbs help boost the body's absorption of calcium, enhance the digestion of calcium and support the structural system. Take 1 capsule with a meal three times daily.Stock No. 823-5 (100)826-3 (50) ATC:Take one capsule with a meal twice daily.