B1 (thiamine). Thiamine plays an essential role in metabolism by helping convert nutrients into energy. It plays a central role in the release of energy from carbohydrates.

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• B2 (riboflavin). Riboflavin works cooperatively in the body with other B vitamins to convert food into energy. It also acts as an antioxidant. 
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• B3 (niacin). Niacin plays a role in cellular signaling, metabolism, and DNA production and repair.
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• B5 (pantothenic acid). Like other B vitamins, pantothenic acid helps your body obtain energy from food and is also involved in hormone and cholesterol production. 
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• B6 (pyridoxine). Pyridoxine is involved in amino acid metabolism, red blood cell production, and the creation of neurotransmitters.
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• B9 (folic Acid). Folic Acid is needed for cell growth, amino acid metabolism, the formation of red and white blood cells, and proper cell division.  
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• B12 (cyanocobalamin). Perhaps the most well-known of all the B vitamins, B12 is vital for neurological function, DNA production, and red blood cell development.