Nutritional SupplementRelease Your Inner StrengthVitamin B-12, the energy vitamin, is a natural energy source. It is essential for many functions within the body and vital for maintaining optimum health including: Formation of red blood cells Maintenance of the central nervous system Support of healthy heart functions Combating chronic fatigue Formation of DNA Regulating metabolic pathways1st Step supplements are purchased by over 20 professional and university sports teams because they work.Natural Energy That Lasts | No Caffeine | No Crashing | Stimulant Free12 Bottles | 2 fl oz (60ml) EachMade in USAThis statement has not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent and disease.