Vitamin B6 also known as Pyridoxine is a water-soluble vitamin that your body needs for several functions. Vitamin B6 (Pyrodoxine) 100mg. Ultra-potent 7143% NRV dose of B6. Vitamin B6 (Pyrodoxine), Anti-caking Agents: Magnesium Stearate, Silicon Dioxide, Bulking Agent: Microcrystalline Cellulose.