Please help docs! is melatonin safe and what dose should i start with?

See below: Melatonin is an over the counter supplement. If you're having trouble falling or staying asleep, prior to taking melatonin, it's advisable to see a sleep medicine specialist to help w/ your insomnia ; to figure out the cause. It may not be necessary to start w/ melatonin, ; possibly improved sleep hygiene (no alcohol, nicotine, caffeine, bright lights ; electronics prior to bed) may help you.