Beyond that, I am not a fan of the sickly-sweet tablets, gummies, and other forms of melatonin I've come across. This is where Onnit's Instant Melatonin Spray comes in. Photograph: Molly HigginsCourtesy of Onnit Chevron Chevron Onnit Instant Melatonin Mist $13 Onnit $13 AmazonKeep in mind that melatonin is meant to be a sleep aid, not a cure-all. That being said, one serving of this spray has 3 milligrams of melatonin, which takes about six pumps to dispense. Onnit's Instant Melatonin Spray is International Genetically Modified Organism Evaluation and Notification certified (IGEN) to verify that it uses truly non-GMO ingredients.