Dee Cee Laboratories Formula 303 Natural Relaxant, natural relief for muscle spasm, tension, and stress. Formula 303 is an all-natural herbal remedy that harnesses the medicinal properties of valerian root, passion flower, and magnesium to provide you with relaxed muscles, stress relief, and natural relief from muscle pain relief, joint pain relief, leg cramp relief, and stress relief. A perfectly formulated balance of Valerian Root, Passion Flower, and Magnesium for sore muscle relief and much more. Formula 303 is made from natural ingredients and may have a distinctive earthy odor, taste, and color of tablets may vary. Gluten Free, Non-GMO manufactured for almost 60 years in the USA, in an FDA registered and inspected facility in full compliance with current Good Manufacturing Processes.