Melatonin is a hormone in your body that plays a role in sleep. The production and release of melatonin in the brain is connected to time of day, increasing when it's dark and decreasing when it's light. Melatonin production unfortunately declines with age, especially after 50+ years. Melatonin is also available as a supplement, typically as an oral tablet or capsule. Most melatonin supplements are made in a lab and are actually harmful to your body, however our Sleep Patch is made from 100% vegan ingredients, including melatonin from natural rice. Use our Transdermal Melatonin patch as an external dietary supplement. Peel one patch from backing and apply 30 minutes prior to your desired sleep time. Patch is effective for up to 8 hours.  Remove patch to discontinue Melatonin effects. Do not operate machinery for 12 hours after applying patch