Description Alvityl Mela-Sleep Flash Sublingual Spray 20 ml is a food supplement formulated with melatonin, which helps reduce the time it takes to fall asleep. Its practical and portable format is particularly suitable for people who have difficulty falling asleep at night, in case of waking up during the night or in case of jet lag recovery. Its sublingual spray format guarantees rapid action and better bioavailability of melatonin. This bottle provides approximately 100 sprays, or 50 nights. Natural lemon flavor. Non-habit forming. Gluten-free, alcohol-free, sugar-free, lactose-free. Vegan.