Support an active lifestyle with vitamin B12 to help reduce tiredness and fatigue, support energy metabolism and help psychological function. These handy capsules from Swanson Health each contain 500mcg as methylcobalamin, and also support your immune health. Support an active lifestyle with vitamin B12 to help reduce tiredness and fatigue, support energy metabolism and help psychological function. These handy capsules from Swanson Health each contain 500mcg as methylcobalamin, and also support your immune health. Complements a well-balanced diet. 500µg of Vitamin B12 per capsule. Reduces fatigue, supports energy metabolism and aids psychological function. Suitable for vegetarians. 30 capsules per pack Support an active lifestyle with vitamin B12 to help reduce tiredness and fatigue, support energy metabolism and help psychological function. These handy capsules from Swanson Health each contain 500mcg as methylcobalamin, and also support your immune health.