21st Century MgO 400 mg Tablets

What the brand says

Sold as “21st Century MgO 400 mg Tablets - 90 ct, Pack of 2”

21st Century MgO 400 mg Tablets, 90 Count is a dietary supplement formulated to provide 400 mg of magnesium oxide per tablet. Magnesium oxide is a source of elemental magnesium used to support daily nutritional intake. Each bottle contains 90 solid tablets, designed for oral use. The tablets are uncoated and intended for routine supplementation according to individual needs or as directed. Packaged in a plastic bottle with a tamper-evident seal for storage integrity.