Pyridoxine HCL Dietary Supplement Energy Production Heart Health Nerve Function Potency & Quality Guaranteed An FDA Regulated Facility Gluten-Free VegetarianCarlson - Providing the highest quality nutritional supplements since 1965.Vitamin B-6 or pyridoxine HCl is essential for the metabolism of polyunsaturated fatty acids, carbohydrates and protein. It is vital for the production of red blood cells and helps to maintain nervous system health.