Melatonin is a neuro-hormone (amino acid) naturally produced in the pineal gland in the brain and present in high amounts in the gastrointestinal tract. It is involved in many of the body, brain and glandular biological functions including regulation of normal sleep/wake cycles. This mid-high potency is suited for individuals with more challenging sleep issues. The vegetarian capsules also makes this product suitable for vegetarians / vegans. Our NOW natural and organic Supplements are an effective way to ensure you and your loved ones are getting essential vitamins, minerals and nutrients for daily optimal health. Since 2000, the NOW brand has been supporting Canadians with a mission to provide products that empower people to lead healthier lives. 70% of the NOW products in Canada are made or packaged in Guelph, Ontario, employing hundreds of Canadians from coast to coast. NOW performs 31,000 quality tests every month to ensure you get the highest quality supplements at the best price possible. Our promise – what is on the label, is precisely what is in the bottle.