Other Information: Each Tablespoon (15 ml) Contains: magnesium 500 mg. Store at room temperature. Avoid excessive heat above 104 degrees F (40 degrees C). Avoid freezing. Close cap tightly after use. Misc: Saline laxative. Genuine. No. 1 milk of magnesia brand. Sugar free. Stimulant free. Cramp free. Comfortable. Cramp free relief. Questions or comments? 1-800-986-0369 (Mon-Fri 9AM-5PM EST). Made in the USA of US & imported materials.