Moly-B 500 mcg by Carlson Labs is made of components that are found in some foods. such as cheese and grains. It is taken to break down proteins in the body so that they can be used for energy. Moly-B 500 mcg by Carlson Labs is comprised of a vitamin that is often stored in the liver and the kidneys. It can sometimes be stored in the lungs and the spleen. Moly-B 500 mcg by Carlson Labs can be taken to decrease symptoms that are seen by those who suffer from allergies. It can be used to help treat gout. acne and anemia.