How much melatonin should I take?

Less than the bottle suggests. The AASM's clinical practice guideline for circadian rhythm sleep-wake disorders describes 0.5-3 mg as the optimal range. In a double-blind trial in the Journal of Clinical Endocrinology & Metabolism, a 0.3 mg physiological dose restored sleep efficiency in older adults with disturbed sleep, while the 3 mg dose — although it also improved sleep — induced hypothermia and left plasma melatonin elevated into the next day's daylight hours. Start at 0.5-1 mg. If that does nothing, the answer is usually a timing change, not a bigger dose.

Is 10 mg of melatonin too much?

For almost everyone, yes. It is more than three times the top of the 0.5-3 mg range the AASM cites, and roughly thirty times the 0.3 mg physiological dose used in the JCEM dose-response trial. Melatonin's job is to signal darkness, and the receptor system does not reward you for shouting. Higher doses are the ones associated with lingering next-day grogginess, which is consistent with the finding that a 3 mg dose already leaves melatonin circulating into daylight. The reason 10 mg dominates the shelf is that it prints well on a label, not that it works better.

When should I take melatonin?

It depends on what you are fixing. For general use, 30-60 minutes before bed is the conventional approach. But if the actual problem is a body clock that has drifted late — you cannot fall asleep until 2am and cannot wake for work — the AASM's circadian guideline endorses strategically timed melatonin taken in the early evening, usually 4 to 5 hours before your desired bedtime, at 0.5-3 mg. That is a phase-shifting protocol, and it is a different thing from swallowing a pill at lights-out and hoping it sedates you.

Are melatonin gummies safe?

They are the format we trust least, for two documented reasons. A 2023 analysis in JAMA tested 25 melatonin gummy products sold in the US and found 22 of them inaccurately labeled, with actual melatonin ranging from 74% to 347% of the stated amount; one contained no detectable melatonin at all. Separately, the CDC reported a 530% increase in pediatric melatonin ingestions called into US poison-control centers between 2012 and 2021 — 260,435 in total, with five children requiring mechanical ventilation and two deaths. The JAMA study did not name brands, so we cannot tell you which gummies were off. We can tell you that a sweet, chewable 10 mg dose is the worst combination of unverifiable and attractive-to-children on the shelf.

Can I take melatonin every night?

You can, but ask what you are treating. The meta-analysis evidence suggests the (small) benefit does not wear off with continued use, and melatonin is not habit-forming in the way sedative-hypnotics are. But the AASM recommends against using it for chronic insomnia, and nightly use often masks a fixable upstream problem: late caffeine, late screens, an inconsistent schedule, an over-warm room. Fix those first. Melatonin is best kept as a tool for jet lag, shift rotations, and a genuinely delayed body clock rather than as a nightly habit.

Melatonin or magnesium for sleep?

They do different jobs, and the choice follows the problem. Magnesium is a mineral most people are genuinely short on, taken nightly to support the relaxation response — a foundation, not a switch. Melatonin is a timing signal for a clock in the wrong place, best used situationally. If you sleep fine but not deeply enough, look at magnesium. If you cannot fall asleep until hours after you want to, or you just crossed five time zones, that is melatonin's actual job. See our best magnesium for sleep roundup for the former.

Sleep · Melatonin

Best Melatonin Supplements, Scored on a Public Rubric

Melatonin is the most misunderstood bottle in the sleep aisle. It is not a sedative — it is the hormone your brain releases in darkness to tell your body clock that night has started, which is why the research treats it as a timing tool rather than a knockout drug. The honest effect size is small: a meta-analysis of randomized placebo-controlled trials in PLOS ONE found melatonin helped people fall asleep about 7 minutes faster on average, with modest gains in total sleep time and sleep quality. The American Academy of Sleep Medicine goes further and recommends clinicians not use melatonin for sleep-onset or sleep-maintenance insomnia at all. Where it genuinely earns its place is circadian: jet lag, shift work, and a body clock that has drifted late — and for those, the AASM's circadian-disorders guideline points to small doses of 0.5-3 mg, taken strategically. Which makes the American supplement shelf faintly absurd. The bestsellers are 5 mg, 10 mg, and 20 mg — up to sixty times the physiological dose — and they are frequently sold as candy. So we scored these seven on the number that actually matters: the dose, and whether you can trust the label that prints it. If you train hard and lift heavy, sleep is where the adaptation happens. Protect it with light, a consistent schedule, and a caffeine curfew first; use melatonin as the small, well-timed nudge it was meant to be.

Reviewed by Stephen V. · Health & fitness enthusiastPublished July 13, 2026

Top PickBest overall

Thorne — Melaton-3 (3 mg, 60 capsules)

3 mg melatonin, capsule, NSF Certified for Sport, gluten/dairy/soy-free, 60 capsules

$16.00View on Amazon

8.5/10 overall

Also great · Best low dose — the closest thing on the shelf to a physiological dose

Natrol — Fast Dissolve Melatonin 1 mg (90 tablets)

$6.97View on Amazon$8.9922% off8.2/10

At a glance

Tap a row to check price · tap a header to sort

#		Best for		Price
1	Thorne — Melaton-3 (3 mg, 60 capsules)	Best overall	8.5/10	$16.00
2	Natrol — Fast Dissolve Melatonin 1 mg (90 tablets)	Best low dose	8.2/10	$6.97$8.99
3	NOW Foods — Melatonin 1 mg with Co-Factor Nutrients (100 tablets)	Best 1 mg tablet from a QC-serious brand	7.8/10	$7.95$12.99
4	Carlyle — Melatonin 1 mg (300 low-dose tablets)	Lowest cost per correct dose	7.8/10	$9.99$11.75
5	Pure Encapsulations — Melatonin 3 mg (180 capsules)	Best clean-label capsule for sensitive stomachs	7.5/10	$39.00
6	Nature Made — Melatonin 5 mg Extra Strength (90 tablets)	The drugstore benchmark	7.2/10	$7.49$10.59
7	Natrol — Melatonin Gummies 10 mg (90 gummies)	The category bestseller	4.8/10	$10.98$15.99

Prices pulled from Amazon as of Jul 13, 2026 and are subject to change. The price shown on Amazon at checkout applies.

How we scored

Every product below is scored on six metrics, 0-10 each, with the weighting described on how we review. The criteria specific to this category:

Dose inside the evidence-supported range — the AASM's circadian guideline points to 0.5-3 mg, so 5 mg is generous, 10 mg is excessive, and 20 mg is theater.
Single-ingredient labels — no kitchen-sink 'sleep blends' burying melatonin among trace-dose botanicals.
Third-party certification stated on the listing (NSF Certified for Sport or equivalent) — the only real check in a category with documented label inaccuracy.
Tablets and capsules over gummies — gummies are the format the JAMA analysis found most mislabeled, and the one driving pediatric poison-control calls.
Splittable and titratable down — the ability to get to 1 mg or below without cutting a candy in half.
Cost per correct dose rather than headline price per bottle.

What to know before buying

Melatonin is a clock signal, not a sleeping pill. It tells your brain the sun has gone down; it does not sedate you. The PLOS ONE meta-analysis of randomized placebo-controlled trials put the average benefit at falling asleep roughly 7 minutes sooner (weighted mean difference 7.06 minutes), with small improvements in total sleep time and quality that did not fade with continued use. Small and real is the honest summary — and it is nothing like the effect the packaging implies.
More is not better, and the best study on this is 25 years old. In a double-blind trial published in the Journal of Clinical Endocrinology & Metabolism, a physiological 0.3 mg dose restored sleep efficiency in older adults with disturbed sleep. The 3 mg pharmacological dose also improved sleep, but it induced hypothermia and left plasma melatonin elevated into the following daylight hours — which is a decent description of the grogginess people blame on 'melatonin hangover'. Start at the bottom of the range, not the top.
For a drifted body clock, timing matters more than dose. The AASM's clinical practice guideline for circadian rhythm sleep-wake disorders endorses strategically timed melatonin for delayed sleep-wake phase disorder, taken in the early evening — usually 4 to 5 hours before the bedtime you actually want — with 0.5-3 mg described as the optimal range. Taken at lights-out instead, you have used it as a weak sedative rather than a phase-shifting signal.
Assume the label is approximate until a certification says otherwise. Researchers who analyzed 31 melatonin supplements across 16 brands (Journal of Clinical Sleep Medicine) found actual melatonin content ranging from 83% below to 478% above the labeled amount, with lot-to-lot variation inside a single product as high as 465%, and serotonin turning up in 26% of the products tested. A 2023 JAMA analysis of 25 melatonin gummy products found 22 of the 25 inaccurately labeled, with real melatonin content between 74% and 347% of the label — one contained no detectable melatonin at all. Those studies did not name brands, so we do not claim any specific product here was mislabeled. We do the only thing that data allows: score down the formats and labels with the least accountability, and score up the ones carrying an independent certification.
It is not a nightly crutch for chronic insomnia. The AASM's pharmacologic-treatment guideline recommends clinicians not use melatonin for sleep-onset or sleep-maintenance insomnia — a weak recommendation on low-quality evidence, but a recommendation against nonetheless, with CBT-I as the first-line treatment. If you cannot sleep most nights, the fix is upstream: morning light, a real schedule, a dark cool room, and a caffeine curfew. Our pre-workout roundup covers the caffeine half of that equation — 400 mg six hours before bed still measurably cost people sleep in a controlled trial.
Keep it away from children. The CDC's Morbidity and Mortality Weekly Report documented a 530% rise in pediatric melatonin ingestions reported to US poison-control centers between 2012 and 2021 — 260,435 in total, rising from 0.6% of all pediatric ingestions in 2012 to 4.9% in 2021, with five children requiring mechanical ventilation and two deaths. Sweet, chewable, 10 mg and stored on the nightstand is exactly how that happens.

Our picks

#1Best overallBest overall — NSF Certified for Sport, single ingredient, sane dose

Thorne — Melaton-3 (3 mg, 60 capsules)

Key specs: 3 mg melatonin, capsule, NSF Certified for Sport, gluten/dairy/soy-free, 60 capsules

$16.00View on Amazon

Pros

NSF Certified for Sport — an independent check on identity and contents, which is the single biggest gap in this category
Single-ingredient capsule at 3 mg: the top of the range the AASM cites, with nothing else riding along
The only pick here a drug-tested athlete can take without thinking twice about it

Cons

3 mg is the ceiling of the evidence-supported range, not the floor — many people do better on 1 mg or less, and a capsule cannot be split
Costs several times more per dose than the drugstore tablets below

Thorne — Melaton-3 (3 mg, 60 capsules)

Rubric score

8.5/10

Third-party testing10/10
Bioavailability8/10
Clinical evidence9/10
Value7/10
Brand transparency9/10
Form & absorption8/10

$16.00View on Amazon

#2Best low doseBest low dose — the closest thing on the shelf to a physiological dose

Natrol — Fast Dissolve Melatonin 1 mg (90 tablets)

Key specs: 1 mg melatonin, fast-dissolve tablet, no water needed, 90 tablets

$6.97View on Amazon$8.9922% off

Pros

1 mg sits inside the 0.5-3 mg range the AASM's circadian guideline calls optimal — and it is scoreable, splittable, and honest
Fast-dissolve tablets make it easy to hit a precise pre-bed or pre-flight timing window
Costs pennies a night, and at 1 mg you are not paying for melatonin you should not be taking in the first place

Cons

No third-party certification stated on the listing — you are trusting the brand's own QC
Flavored fast-dissolve tablets are sweetened; the ingredient list is longer than a plain capsule's

Natrol — Fast Dissolve Melatonin 1 mg (90 tablets)

Rubric score

8.2/10

Third-party testing6/10
Bioavailability8/10
Clinical evidence10/10
Value9/10
Brand transparency7/10
Form & absorption9/10

$6.97View on Amazon$8.9922% off

#3Best 1 mg tablet from a QC-serious brandBest 1 mg tablet from a QC-serious brand

NOW Foods — Melatonin 1 mg with Co-Factor Nutrients (100 tablets)

Key specs: 1 mg melatonin with co-factor nutrients, tablet, 100 tablets

$7.95View on Amazon$12.9939% off

Pros

1 mg is the right starting dose, and NOW is one of the few mass-market brands that runs its own analytical lab
Tablet form is easy to halve if you want to test 0.5 mg
Sensible price for a hundred nights

Cons

Not strictly single-ingredient — the co-factor nutrients ride along whether you want them or not
No sport certification listed on this SKU

NOW Foods — Melatonin 1 mg with Co-Factor Nutrients (100 tablets)

Rubric score

7.8/10

Third-party testing7/10
Bioavailability8/10
Clinical evidence10/10
Value8/10
Brand transparency6/10
Form & absorption8/10

$7.95View on Amazon$12.9939% off

#4Lowest cost per correct doseLowest cost per correct dose

Carlyle — Melatonin 1 mg (300 low-dose tablets)

Key specs: 1 mg melatonin, tablet, 300 tablets, drug free

$9.99View on Amazon$11.7515% off

Pros

300 tablets at 1 mg — by far the cheapest way to buy the dose the research actually supports
Small plain tablet, easy to split down toward the 0.3-0.5 mg physiological range
No gummy sugar, no blend, no theater

Cons

No third-party certification stated on the listing — the weakest accountability of our recommended picks
House-brand supply chain; expect less published QC detail than Thorne or NOW

Carlyle — Melatonin 1 mg (300 low-dose tablets)

Rubric score

7.8/10

Third-party testing5/10
Bioavailability8/10
Clinical evidence10/10
Value10/10
Brand transparency7/10
Form & absorption7/10

$9.99View on Amazon$11.7515% off

#5Best clean-label capsule for sensitive stomachsBest clean-label capsule for sensitive stomachs

Pure Encapsulations — Melatonin 3 mg (180 capsules)

Key specs: 3 mg melatonin, capsule, 180 capsules

$39.00View on Amazon

Pros

Short, plain capsule label from a brand built around minimal excipients
3 mg is within the AASM's stated range, and 180 capsules is a long supply
No sweeteners, dyes, or flavoring — nothing to react to

Cons

The most expensive option here by a wide margin
Capsules cannot be split, so 3 mg is the floor as well as the ceiling

Pure Encapsulations — Melatonin 3 mg (180 capsules)

Rubric score

7.5/10

Third-party testing7/10
Bioavailability8/10
Clinical evidence9/10
Value5/10
Brand transparency8/10
Form & absorption8/10

$39.00View on Amazon

#6The drugstore benchmarkThe drugstore benchmark — widely stocked, but already over the range

Nature Made — Melatonin 5 mg Extra Strength (90 tablets)

Key specs: 5 mg melatonin, tablet, 90 tablets, drug free

$7.49View on Amazon$10.5929% off

Pros

Cheap, everywhere, and a plain tablet you can cut in half to land near 2.5 mg
Straightforward single-active label from a mainstream brand
90 tablets at a drugstore price

Cons

5 mg is above the 0.5-3 mg range the AASM's circadian guideline points to — 'extra strength' is a marketing frame, not a clinical one
Higher doses are the ones associated with next-day grogginess and daytime melatonin still circulating

Nature Made — Melatonin 5 mg Extra Strength (90 tablets)

Rubric score

7.2/10

Third-party testing7/10
Bioavailability8/10
Clinical evidence6/10
Value8/10
Brand transparency7/10
Form & absorption7/10

$7.49View on Amazon$10.5929% off

#7The category bestsellerThe category bestseller — and the clearest example of what our rubric penalizes

Natrol — Melatonin Gummies 10 mg (90 gummies)

Key specs: 10 mg melatonin, strawberry gummy, 90 gummies, added sugar

$10.98View on Amazon$15.9931% off

Pros

Genuinely pleasant to take, which is why this format dominates the category
Widely available and cheap per gummy

Cons

10 mg is more than three times the top of the range the AASM cites, and roughly thirty times the 0.3 mg physiological dose that outperformed 3 mg in the JCEM trial
Gummies are the format the JAMA analysis of 25 products found inaccurately labeled in 22 cases — brands were not identified, so this is a format-level penalty, not a finding about this product
Candy-like sweets at 10 mg are exactly the profile behind the 530% rise in pediatric poison-control calls; if there are kids in the house, this is the wrong bottle

Natrol — Melatonin Gummies 10 mg (90 gummies)

Rubric score

4.8/10

Third-party testing4/10
Bioavailability7/10
Clinical evidence3/10
Value6/10
Brand transparency4/10
Form & absorption5/10

$10.98View on Amazon$15.9931% off

Frequently asked questions

Modestly, and not the way most people think. A meta-analysis of randomized, placebo-controlled trials published in PLOS ONE found that melatonin helped people fall asleep about 7 minutes faster on average (weighted mean difference 7.06 minutes), increased total sleep time, and improved sleep quality — with the effects holding up rather than fading over continued use. Meanwhile the American Academy of Sleep Medicine's guideline on pharmacologic treatment of chronic insomnia recommends clinicians not use melatonin for sleep-onset or sleep-maintenance insomnia. Both things are true: it is a real but small effect, and it is not a treatment for insomnia. It is a circadian signal, best used for a body clock that is in the wrong place.

Sources

Meta-Analysis: Melatonin for the Treatment of Primary Sleep Disorders — PLOS ONE, 2013
Clinical Practice Guideline for the Pharmacologic Treatment of Chronic Insomnia in Adults — Journal of Clinical Sleep Medicine (American Academy of Sleep Medicine), 2017
Clinical Practice Guideline for the Treatment of Intrinsic Circadian Rhythm Sleep-Wake Disorders (ASWPD, DSWPD, N24SWD, ISWRD) — Update for 2015 — Journal of Clinical Sleep Medicine (American Academy of Sleep Medicine), 2015
Melatonin Treatment for Age-Related Insomnia (0.1, 0.3 and 3.0 mg dose-response) — The Journal of Clinical Endocrinology & Metabolism, 2001
Melatonin Natural Health Products and Supplements: Presence of Serotonin and Significant Variability of Melatonin Content — Journal of Clinical Sleep Medicine, 2017
Quantity of Melatonin and CBD in Melatonin Gummies Sold in the US — JAMA, 2023
Pediatric Melatonin Ingestions — United States, 2012-2021 — CDC Morbidity and Mortality Weekly Report, 2022

Last verified: July 13, 2026. See our editorial policy and how we review for details on scoring and update cadence. Canonical URL: https://trustedhealthgear.com/reviews/best-melatonin.

Thorne — Melaton-3 (3 mg, 60 capsules)

$16.00 · on Amazon

View

Top pick

Thorne — Melaton-3 (3 mg, 60 capsules)

Natrol — Fast Dissolve Melatonin 1 mg (90 tablets)

At a glance

How we scored

What to know before buying

Our picks

Thorne — Melaton-3 (3 mg, 60 capsules)

Pros

Cons

Thorne — Melaton-3 (3 mg, 60 capsules)

Natrol — Fast Dissolve Melatonin 1 mg (90 tablets)

Pros

Cons

Natrol — Fast Dissolve Melatonin 1 mg (90 tablets)

NOW Foods — Melatonin 1 mg with Co-Factor Nutrients (100 tablets)

Pros

Cons

NOW Foods — Melatonin 1 mg with Co-Factor Nutrients (100 tablets)

Carlyle — Melatonin 1 mg (300 low-dose tablets)

Pros

Cons

Carlyle — Melatonin 1 mg (300 low-dose tablets)

Pure Encapsulations — Melatonin 3 mg (180 capsules)

Pros

Cons

Pure Encapsulations — Melatonin 3 mg (180 capsules)

Nature Made — Melatonin 5 mg Extra Strength (90 tablets)

Pros

Cons

Nature Made — Melatonin 5 mg Extra Strength (90 tablets)

Natrol — Melatonin Gummies 10 mg (90 gummies)

Pros

Cons

Natrol — Melatonin Gummies 10 mg (90 gummies)

Frequently asked questions

Related reading

Sources