Sulfur Proline or Super Sulfur is for professional use only! This Sulfur is three times the strength of regular Angstrom Sulfur. Dietary Supplement Super Sulfur 32oz. is known as a healing mineral. Liquid Sulfur is required for proper digestion, metabolism of carbohydrates, influences liver, promotes bile secretion, and regulates nerve impulses, cell formation, and essential in the stimulation of egg and sperm production.