If you enjoy an active lifestyle why not top up your Vitamin B12 levels to reduce tiredness and fatigue, support energy metabolism and aid psychological function? A water-soluble vitamin, these handy, high-strength, lozenges, are each packed with 1000µg of B12, and also support normal functioning of the immune system. If you enjoy an active lifestyle why not top up your Vitamin B12 levels to reduce tiredness and fatigue, support energy metabolism and aid psychological function? A water-soluble vitamin, these handy, high-strength, lozenges, are each packed with 1000µg of B12, and also support normal functioning of the immune system. Complements a well-balanced diet. 1000µg of vitamin B12 per lozenge. Reduces fatigue, supports energy metabolism and aids psychological function. Supports normal immune function. 100 lozenges per pack B12 Active are lozenges that provide 1000mcg of Vitamin B12 and 400mcg of Folic acid per dose. Try some today.