Enjoy an active lifestyle? Vitamin B2, also known as riboflavin, supports energy metabolism, reduces tiredness and fatigue, and protects your body from oxidative stress. Vitamin B2 is also involved in keeping the skin and eyes healthy - each capsule from Swanson Health contains 100mg. Enjoy an active lifestyle? Vitamin B2, also known as riboflavin, supports energy metabolism, reduces tiredness and fatigue, and protects your body from oxidative stress. Vitamin B2 is also involved in keeping the skin and eyes healthy - each capsule from Swanson Health contains 100mg. Complements a well-balanced diet. 100mg of vitamin B2 per capsule. Supports energy metabolism and reduces tiredness and fatigue. Protects the body from oxidative stress. Maintenance of normal skin. Maintenance of normal vision. 100 capsules per pack Vitamin B2 by Swanson Health can help the reduction of tiredness and fatigue and help maintain normal red blood cells within the body. Get energetic, read more!