Biotin
Biotin is also a water-soluble member of the B vitamin family, but according to scientists, is not a vitamin of concern, at all. It is available in many foods at reasonably high levels. However, Biotin is again a key vitamin and is involved in energy generation from carbohydrates and especially fats, though there is no evidence that even near deficiencies are present in the population. It is also needed for health hair, skin and nails too.
Prime Fifty have only used Biotin at the NRV (RDA) in their Energising tablets and their Muscle Maintenance products to guarantee that biotin is not in short supply under any circumstance.