1.3 mg of synthetic melatonin.
Jet lag instructions-take 1 to 3 caps 1 hour before bed for 3 days before trip, then continue during the trip and for 3 to 4 days after return.
WARNING: Melatonin may have a strong sedating effect within 20 minutes of consumption. In rare cases it may stimulate seasonal affective disorder, depression, or have stimulatory effects. Not to be used during the day time. Not recommended for children or adolescents, for long-term administration, or for those with a prior history of seizures. Do not use while operating a motor vehicle or other machinery.