Magnesium Oxide is derived from ancient oceanic deposits and is a rich source of elemental magnesium (58% average). The natural reaction of Magnesium Oxide in the human body at a certain dosage, facilitates a relaxation of the bowels, which will allow intestinal impurities to be excreted. Manufactured in a cGMP facility. Product is Made in the USA. Manufacturer is a Natural Products Association member, Organic Certified by ECOCERT, certified organic by CCOF, Food and Drug Administration Registered. Suggested Usage: Start by taking 4 capsules with an 8 oz. glass of water at bed time. Magnesium Oxide capsule dosage can be adjusted to achieve desired results. Supports Healthy Digestion and Regularity Optimized O2 Magnesium Oxide Complex Made with Organic, Vegan Excipients Non-GMO GMP Tested