Vitamin B2 as riboflavin 5′-phosphate
OPTIMUM Multivitamin contains vitamin B2 in the biologically active form into which standard riboflavin is converted in the body, namely riboflavin-5'-phosphate. In this native form, it plays a role as a coenzyme in many metabolic processes. Riboflavin-5'-phosphate belongs to a group of natural pigments (flavins). When excreted, riboflavin gives urine its characteristic bright yellow colour. To support good health, Multivitamin OPTIMUM contains a generous dose of vitamin B2 in pure, biologically active form.