Melatonin is just a small part of how we formulated our Rest Gummies, as they also include well-researched GABA, L Tryptophan, Ashwagandha, and L Theanine... just to name a few. It is also at the lowest dose of 2.5mg per gummy.  All of these ingredients, together, help with the much needed deep, restorative sleep. Please note that melatonin supplements are not sleeping pills. Oral melatonin supplements support the human body’s natural circadian rhythms and promote healthy sleep. When taken an hour before bedtime, melatonin supports the natural rise in melatonin that typically occurs before sleep. Taking a low dose of melatonin does NOT stop your own melatonin production.