Suitable for vegetarians vegans supports normal energy yielding metabolism contributes to the reduction of tiredness fatigue sublingual supplements are ideal for individuals who are unable to swallow capsules or tablets holland barretts liquid b complex provides an excellent source of b vitamins to support normal energy yielding metabolism and the reduction of tiredness and fatigue riboflavin b2 niacin b3 vitamin b6 and vitamin b12 also contribute to the normal functioning of the