Ancient Minerals Magnesium Lotion Goodnight is a smooth, quickly absorbed emulsion of magnesium chloride and melatonin in a skin-nourishing base of certified organic oils. Ancient Minerals is fragrance free and does not contain any formaldehyde releasing preservatives.A gentler concentration of magnesium chloride than our magnesium oil or magnesium gel products, Ancient Minerals Magnesium Lotion Goodnight provides melatonin while protecting the most sensitive of skin.