This is a high strength supplement of vitamin B2, which is also known as riboflavin and each capsule provides a full 50mg of riboflavin. As with all Lamberts® supplements this product is manufactured in premises that operate to stringent pharmaceutical standards of GMP. Riboflavin is a very important nutrient as it contributes to: The normal functioning of the nervous system. The maintenance of normal red blood cells. The maintenance of normal skin. The maintenance of normal vision. The reduction of tiredness and fatigue. Daily intake: 1 capsule.