CanPrev Magnesium Sleep Gaba & Melatonin - Extra Gentle magnesium form with melatonin and GABA, this formulation is designed to help people relax, reset their circadian biological clocks, get better sleep while reducing the time needed to fall asleep for people with delayed sleep phase disorder. This proprietary magnesium-glycine complex provides a therapeutic 125mg of magnesium bis-glycinate, 100mg of GABA (gamma-aminobutyric acid) and 2.5mg of melatonin as natural sleep aids with every vegetable capsule.