Vitamin B12 is an important vitamin b12, b6 & folic acid vitamins & dietary supplementsVitamin b12, folic acid and essential b vitamins important nutritional supplements for depression Enjoy More Energy & Stamina - & Reduce Risk of Heart Disease With Vitamin-B12, B-6 & Folic AcidVitamin B at the Diet ChannelVitamin B, or the B complex, is comprised of several vitamins.