Pyridoxine is a water-soluble form of vitamin B6, an essential micronutrient involved in numerous enzymatic reactions, primarily as a cofactor in amino acid metabolism, neurotransmitter synthesis, and hemoglobin formation. It is converted in the body to pyridoxal 5'-phosphate (PLP), the active coenzyme form. Pyridoxine occurs naturally in foods such as poultry, fish, potatoes, and bananas. It is stable under acidic conditions but sensitive to light and heat in alkaline environments. Industrially, it is synthesized for use in dietary supplements and fortified foods. Deficiency leads to microcytic anemia, dermatitis, and neurological symptoms, while excessive intake may cause peripheral neuropathy.