What It DoesMelatonin-SR delivers 6-hour sustained sleep support through patented MicroActive technology. Unlike standard melatonin that works for only 2-3 hours, this formula maintains therapeutic levels throughout the night. Research shows it supports both sleep onset and sleep efficiency.Why It Works SUSTAINED RELEASE: MicroActive delivery system provides prolonged plasma presence up to 6 hours after a single dose, supporting full-night sleep. ENHANCED ABSORPTION: Patented technology demonstrates superior bioavailability compared to standard melatonin formulations. CIRCADIAN REGULATION: Supports your body's natural production of this sleep hormone and endocrine secretion patterns. What's InsideVegan capsules with high-quality ingredients backed by verifiable science. Each bottle contains 60 capsules providing 60 servings.Why we carry it: Pure Encapsulations' MicroActive technology represents the most advanced melatonin delivery system available in Canada.