Ancient Minerals Magnesium Lotion Goodnight is a smooth, quickly absorbed emulsion of magnesium, MSM and melatonin in a skin-nourishing base of certified organic oils. Melatonin is a ubiquitous and powerful free radical scavenger that easily crosses cell membranes, however, production of melatonin is thought to decrease as we age. Rich in plant moisturizers including coconut oil and shea butter, this lotion soothes and hydrates without leaving your skin feeling waxy or greasy. Ancient Minerals Magnesium Lotion Goodnight is fragrance free, does not contain any formaldehyde releasing preservatives, and delivers 3mg melatonin and 25mg elemental magnesium per 1 mL.