5mg melatonin per serving. Melatonin may help with relief of occasional sleeplessness* (Results may vary) 195 capsules, a 6 month supply (taken daily at the listed serving size) No artificial colors, flavors or chemical preservatives Vegan and gluten free Blended and packaged in a Good Manufacturing Practices (GMP) facility in the USA Alexa voice shopping enabled: to place your next order, just say, "Alexa, reorder Amazon Elements Melatonin" During the summer months products may arrive warm but Amazon stores and ships products in accordance with manufacturers' recommendations, when provided. If you like Natrol Melatonin, we invite you to try Amazon Elements Melatonin tablets An Amazon Brand