B complex The role of B complex - Valens B complex Why buy Valens B complex Where to buy Symptoms of vitamin B deficiency may show themselves on your skin, hair or nails! B vitamins (B1, B2, B3, B5, B6, B12, biotin and folic acid) help our body to convert food into energy. Individual vitamins of this group contribute to normal functioning of the nervous system, psychological function, reduction of tiredness and fatigue as well as maintenance of normal hair and skin. The most endangered people for B vitamin deficiency are those older than 50, pregnant women who have higher intake needs and people with unbalanced diet. Similar issues can also occur to physically active people, who lose their vitamins and minerals through sweat. Large amounts of sugar in food may damage and change your gut flora, which causes microbiota to stop producing their own B vitamins. Similar issues can occur if you drink a lot of black coffee, black tea or alcohol.