Magnesium Citrate - Muscle, Nerve and Energy Support, Improved Heart Health Function: Sleep support Ingredients: Magnesium Directions: Take 1~2 capsules twice a day after meals. Shipping: Ships within 48 hours on weekdays Shelf life: 2 years Magnesium Citrate 1000 mg: We put 1000 mg of magnesium into every two capsules (500 mg/capsule), chelated for better absorption TRUSTED FORMULA: Our magnesium citrate is formulated and produced under strict cGMP guidelines; our magnesium supplements are third-party tested to ensure the quality and purity of each batch.