Holistic Way Extra Strength Melatonin 10mg with Magnesium 150mg is a Non Sublingual fast-acting formulation that allows for best possible absorption and works to promote and support sound sleep. This formulation is added with 150mg of Elemental Magnesium to support healthy muscle function and encourage relaxation. It may help increase your sleep time thus giving better sleep quality for people with altered sleeping schedules like shift work and jet lag. Full disclosure & disclaimer: Results may vary across individuals.