3-in-1 High-Absorption Magnesium Complex - magnesium glycinate, magnesium malate and magnesium citrate for optimal absorption and bioavailability. Every batch is third-party tested for purity, potency and safety — because quality matters.3-in-1 High-Absorption Magnesium Complex - magnesium glycinate, magnesium malate and magnesium citrate for optimal absorption and bioavailability.