How Long Does Melatonin Take to Work?

You've taken your melatonin, you're in bed, and you're wondering: how long until it starts working? The answer depends on the type of melatonin you take and when you take it. Here is a simple guide.

The short answer

According to the Sleep Foundation, supplemental melatonin typically takes effect within 20 to 40 minutes, and depending on the type of supplement, the effects may begin in as little as 20 minutes. Extended-release formulas work more slowly but for longer.

Does the format matter?

Format	How it works	Examples in our store
Quick-dissolve (sublingual) tablets	Melt under the tongue, no water needed	Webber Naturals 5mg Easy Dissolve, Webber Naturals 3mg
Dual action / timed release tablets	One layer releases melatonin quickly, a second layer releases it gradually	Adrien Gagnon 10mg Dual Action, Jamieson 10mg Timed Release
Gummies	Chewed and swallowed	Nature's Bounty Gummies, Jamieson Gummies
Liquid	Measured with a dropper	Adrien Gagnon Liquid 3mg

The Sleep Foundation notes that melts are absorbed more quickly than gummies, while extended-release pills take effect more slowly and work for longer.

When should I take melatonin?

Timing matters as much as the format. The labels of the products we sell recommend taking melatonin at or shortly before bedtime, for example:

• At bedtime only (Webber Naturals 5mg Easy Dissolve)
• At bedtime or 30 minutes before bedtime (Adrien Gagnon 10mg Dual Action)
• 30 to 90 minutes before bedtime (Webber Naturals 5mg Quick Dissolve and 10mg Dual Action)

General guidance from the Sleep Foundation suggests taking melatonin one to two hours before bedtime. Because advice varies, always follow the label of the product you buy, and ask your doctor or pharmacist if you are unsure.

Tips to help melatonin work

• Be consistent: take it at the same time each night, as the label directs.
• Dim the lights: your body naturally makes melatonin when it gets dark, so a dark, calm bedroom helps.
• Put screens away: bright light from phones and laptops late at night works against a good bedtime routine.
• Plan ahead: the labels warn not to drive or use machinery for 5 hours after taking melatonin, so only take it when you are ready to wind down for the night.

What if melatonin doesn't seem to work?

Check that you are taking it at the time your label recommends, and that you are following the label directions. Don't simply take more. Speak to your doctor or pharmacist, who can help you choose the right strength and format. The labels of our products also advise consulting a health care practitioner if you need melatonin for more than 4 weeks.

Frequently asked questions

Do gummies work as fast as tablets?
According to the Sleep Foundation, melts are absorbed more quickly than gummies. Gummies are still a popular choice for people who dislike tablets.

Do quick-dissolve tablets work faster?
Quick-dissolve tablets melt under the tongue, and the Sleep Foundation notes that melts are absorbed more quickly than gummies.

What is the difference between quick-dissolve and dual action?
Quick-dissolve tablets release melatonin all at once. Dual action tablets release part of it quickly and the rest gradually over the night.

Which strength should I take?
See our melatonin dosage guide for the difference between 1mg, 3mg, 5mg and 10mg, and always follow the label.

Shop melatonin

We stock melatonin from 1mg to 10mg in quick-dissolve tablets, dual action tablets, gummies and liquid. Orders are prepared within 2 business days and delivered to the UK and Europe in 2 to 6 business days, and to Australia and New Zealand in 2 to 9 business days.

Browse our melatonin collection →

This article is for general information only and is not medical advice. Our products are dietary supplements and are not intended to diagnose, treat, cure or prevent any disease. Always read the label and speak to a healthcare professional if you have questions about your health.