This is Betteryou’s most pure magnesium oil. Supersaturated, naturally filtered, absolutely nothing added. It is the most soluble source available allowing the mineral to reach the body tissue without loss. In this way essential magnesium enters the cells immediately, efficiently replacing magnesium lost through modern diet and pressured lifestyles. Pure enough for use during pregnancy and for children of any ages. Scientifically proven to increase magnesium levels.