Pyridoxine Hydrochloride (HCl) is a form of Vitamin B6 that is bonded with hydrochloride to increase absorption. Pyridoxine is just another term for Vitamin B6. It is an essential vitamin for everyone, especially women, as it has been specifically tied to balancing hormones in women. This vitamin is involved in many different metabolic functions and usually works as a coenzyme in them to make sure that this metabolism all goes according to plan. Vitamin B6 is especially essential for amino acid metabolism and it is also used in the production of GABA. Pyridoxals in general facilitate the metabolism and conversion to energy of all food types and are instrumental in helping to release energy that has been stored for later use in the muscles. Vitamin B6 is found throughout the diet in sources like fruit, vegetables, and grain. Pyridoxine HCl may support heart function, promote brain health, support healthy mood, fortify the joints.* This is the powder form. It is pure and free from any fillers or additives.