In Each 15 mL Other Information: Each 15 mL contains: magnesium 1000 mg; store at room temperature. Avoid freezing. Close cap tightly after use. Genuine. Saline laxative. Stimulant free cramp free. No. 1 Milk of Magnesia brand. Full strength of regular Phillips' in half the dose! Phillips' is gentle and stimulant free so it works more like nature intended. Some laxatives contain stimulants and can cause abdominal discomfort and cramps. Stimulant free Phillips' is different. It encourages your body to take its natural course and relieves constipation comfortably. You don't have to feel worse before you feel better. Questions or comments? 1-800-986-0369 (Mon - Fri 9AM - 5PM EST). Made in the USA of US & imported materials.