Scores 35/35 for dosage transparency, 25/25 for a clean formula, 23/25 for label completeness. 2 ingredients disclosed with amounts.
liquid · 59 servings · $0.42/servingBuy on iHerb$24.66
10 Best Melatonin & Sleep Supplements (October 2026)
Melatonin is the most popular sleep supplement in the US and, since 2022, one of the most scrutinized: independent testing found actual melatonin content ranging from 74% to 347% of the label in some gummies. That makes label discipline — a precise dose, a simple formula — the practical buying criterion.
This ranking covers every melatonin and sleep-support product in the NIH label database, scored on label quality.
Our top picks
Scores 30/35 for dosage transparency, 25/25 for a clean formula, 20/25 for label completeness. 5 ingredients disclosed with amounts.
capsule · 30 servings · $1.95/servingBuy on iHerb$58.50
Scores 35/35 for dosage transparency, 22/25 for a clean formula, 23/25 for label completeness. 2 ingredients disclosed with amounts.
liquid · 30 servings · $0.34/servingBuy on iHerb$10.15
Top 10 ranked
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Rankings reflect label quality scores (dosage transparency, cleanliness, ingredient profile) — not clinical efficacy. Read methodology
How we ranked them
Every product is scored 0–100 from its label data in the NIH Dietary Supplement Label Database: dosage transparency (35 points — are amounts stated per ingredient, or hidden in a proprietary blend?), label completeness (25), formulation cleanliness (25 — fillers, dyes, titanium dioxide and other non-active ingredients) and ingredient profile (15). The Top 10 admits only products scoring 60 or higher; among those, products with a verified retail listing are shown first so the list is one you can act on. No brand can pay to be included or moved up.
Forms and dosage
- Immediate-release tablets
- The standard form; acts within about 30–60 minutes.
- Extended-release
- Designed for staying asleep rather than falling asleep.
- Gummies
- Convenient, but the format with the most label-accuracy problems in independent tests, and with sugar and dyes.
- Sleep blends
- Melatonin combined with magnesium, L-theanine, valerian or GABA. Fine when each dose is stated; weak when hidden in a blend.
How much to take
Effective doses in studies are often lower than retail doses: 0.5–3 mg taken 30–60 minutes before bed. Products of 5–10 mg are common in the US but not necessarily better, and higher doses raise the chance of next-day grogginess. There is no NIH upper limit; the American Academy of Sleep Medicine advises against routine long-term use without medical advice.
Who it's for
Adults with jet lag, shift work, or delayed sleep timing; short-term use for occasional sleeplessness.
What to watch out for
Gummies with unverified doses, "sleep blends" where the melatonin amount is buried in a proprietary blend, and children's products with doses close to adult amounts.
All Melatonin & Sleep products (1564)
1
Physician's ChoiceSleep Aid
892GNCMelatonin 3
883GNCMelatonin 3 mg
884Nutra BioGenesisLiposomal Melatonin
885MRMStress Adaptogens
866EmeraldSleep Health
867Nutrifect NutritionSleep Aid
868ProperCore Sleep
869ProperSleep + Calm
8610ProperSleep + Clarity
8611ProperSleep + Restore
8612Fresh NutritionSleep Aid
8613HerbtonicsSleep Tonic
8614DaVinci Benefits LineSleep Benefits
8615Emerald LabsSleep Health
8616Davinci LaboratoriesSleep Complete
8617DaVinci Benefits LineSleep Benefits Melatonin Free
8618GNC Herbal PlusNatra Sleep
8619Emerald LaboratoriesSleep Health
8620GNC Herbal Plus FormulaNatra Sleep
86Frequently Asked Questions
Is 10 mg of melatonin too much?
For most adults, doses above 5 mg show no added benefit for sleep onset and increase next-day drowsiness. Many clinicians suggest starting at 0.5–1 mg. Our ranking does not score the dose chosen; it scores whether the label states it clearly and keeps the formula clean.
Why did gummies score lower on average?
Gummies carry more "other ingredients" — sugar, pectin, colorants, flavors — per milligram of active ingredient, which lowers the formulation cleanliness score.
How are melatonin & sleep supplements ranked?
Products are ranked by SupplementScore, which evaluates label quality across four categories: dosage transparency (35 pts), label completeness (25 pts), formulation cleanliness (25 pts), and ingredient profile (15 pts). The score is based on data from the NIH Dietary Supplement Label Database, not marketing claims.
Does a higher score mean the supplement is more effective?
No. The SupplementScore measures label quality — how transparent, clean, and well-documented a product is. It does not measure clinical efficacy, bioavailability, or third-party testing. A higher score means better label practices, not guaranteed results.
How many melatonin & sleep supplements were analyzed?
We analyzed 1,564 melatonin & sleep products from the NIH DSLD database, which contains label data for over 116,000 dietary supplements sold in the United States.
This article is for information only and is not medical advice. Talk to a clinician before starting a supplement, especially if you are pregnant, take medication or have a health condition.