Erbenobili Multi-Magnesium Magnesium Compost is a supplement designed to maintain adequate magnesium intake, an essential mineral for muscle and bone health. It may be beneficial in preventing magnesium deficiencies. Composition Ingredients: Magnesium citrate, magnesium oxide, magnesium carbonate, magnesium gluconate, microcrystalline cellulose (bulking agent), magnesium stearate (anti-caking agent). Instructions for use Take 1 tablet per day with water, preferably during a meal.