Melatonin 5mg Sublingual Orange 100 tabs from Source NaturalsMelatonin Sublinguals Orange and Peppermint Flavor, 1 mg, 2. 5 mg and 5 mg Melatonin is a neurohormone produced in humans by the pineal gland. A favorite of travelers, it governs the body's circadian rhythms. Melatonin is also a potent antioxidant. Supplement Facts for 5 mg orange Serving Size: 1 tablet Amount %DV Melatonin 5 mg Coenzymated Vitamin B 6 (Pyridoxal 5' Phosphate) 500 mcg 0. 17 Other Ingredients: sorbitol, mannitol, natural orange flavor,