Pure Encapsulations Melatonin Liquid Nutritionally Augments the Natural Functioning of the Pineal Gland, Supporting the Body's Natural Sleep Cycle Melatonin is a hormone produced by the pineal gland, which regulates the body’s sleep/wake cycle. Melatonin’s primary role is the regulation of the body’s circadian rhythm, endocrine secretions, and sleep patterns. Studies indicate that it facilitates the onset of sleep, as well as sleep efficiency. Key Benefits and Features: Ages 18 and up Natural sleep/wake cycle support Promotes regulation of the body’s circadian rhythm, endocrine secretions, and sleep patterns Helps facilitate the onset of sleep, as well as sleep efficiency Contains 99.5% pure melatonin Made with high-quality vegan ingredients backed by verifiable science Ingredients Serving Size: 1 ml (0.03 fl oz) (one full dropper) Amount/Serving Melatonin (micronized) 2.5 mg Other Ingredients: Purified water, apple juice concentrate, natural vegetable glycerin, black currant juice concentrate, xanthan gum, potassium sorbate, citric acid, and purified stevia leaf extract. Gluten Free, Non-GMO, Vegetarian Suggested Use As a dietary supplement, take 1 dropper daily, 1/2 to 1 hour before bedtime, or as directed by your health professional. Warning: Consult a healthcare professional if you are experiencing long-term sleep difficulties, before use in children, before use in pregnant or lactating women, those with a medical condition, and those taking medication. Do not drive or operate machinery when taking melatonin. This product may be contraindicated for individuals taking corticosteroids. Keep out of the reach of children. Storage: Keep tightly closed in a cool, dry place. More Info. This supplement contains 99.5% synthetic melatonin Hypoallergenic plant fiber is derived from pine cellulose