High concentrated magnesium glycinate 500mg capsules, bulk 240 capsules (or 480 capsules) supply, convenient one a day formula, lasts up to 8 months. Potent full elemental magnesium, 100% chelated and purified for max bioavailability, most gentle form for easy digestion and absorption. Promotes replenishment of natural magnesium mineral levels over time, aids over 300 beneficial bodily functions in both men and women. Magnesium glycinate is considered one of the most bioavailable forms of magnesium and offers essential micronutrient mineral support for energy, joints, muscles, heart, and bones. Authentic non-GMO and non-irradiated magnesium supplements. Contains pure ingredients free of wheat, soy, dairy, gluten, and preservatives. Made in California and 3rd party lab tested for safety and potency.