Suggested Use: 1 capsule 1/2 to 1 hour before bedtime. Warning: Consult your physician before taking this product. May cause drug interactions or other serious complications. Melatonin 20 mg. - Pure Encapsulations Melatonin is available in 20mg dosages. Melatonin in lower doses is usually appropriate for sleep support, while the higher 20mg is used for hormone support, specifically breast, colon prostate and lungs. Clinically studied to provide antioxidant activity to the cells, angiogenesis balance and immune functioning. Please contact us to talk with one of our vitamin experts to assist you...