Cheapest Melatonin per 1 mg 2026: Cost Ranked
Not medical advice. Prices are current Amazon prices for the exact container and move week to week; doses are each label’s.
Quick answer
Melatonin costs between $0.015 and $0.30 per 1 mg across the 8 products we track, a 20.1× spread for the same melatonin. The sticker price is meaningless because bottles run from 60 to 240 servings; only the price per dose compares.
Cheapest: Nature Made Melatonin 3 mg, $0.015 per 1 mg ($5.44 a year). Cheapest certified: Nature Made Melatonin 3 mg, $0.015 per 1 mg, in the USP Verified registry. See the table →
Every melatonin we track, ranked by cost per 1 mg
Original research8 melatonin products priced on the same day (2026-09-17) from the current Amazon price of the exact container and the dose on each Supplement Facts panel; 1 of the 8 are in an independent certification registry per our registry check of 8 products against 3,053 NSF, 159 USP and 2,105 Informed Sport listings.
Method: every melatonin product in our catalog with a live Amazon offer (8 of them). Price is the current Amazon price of the exact container (by ASIN), verified 2026-09-17; dose is the Supplement Facts serving; cost per 1 mg = price ÷ (servings × mg per serving). The verification rung comes from our registry snapshots (NSF/ANSI 173, USP Verified, Informed Sport; 2026-08-25) and brand-site certificate checks (2026-09-19). Products with no buyable Amazon offer are left out rather than priced from memory.
| Product | Cost per 1 mg | Active per serving | Serving on label | Servings | Price | Quality signal | Buy |
|---|---|---|---|---|---|---|---|
| Nature Made Melatonin 3 mg | $0.015 | 3 mg melatonin | 1 tablet | 240 | $10.73 | Rung 1: USP Verified listing | Check price |
| Nature's Bounty Melatonin 3 mg Quick Dissolve | $0.020 | 3 mg melatonin | 1 tablet | 120 | $7.23 | Rung 4: unverified | Check price |
| Natrol Melatonin 5 mg Gummiesgummy | $0.024 | 5 mg melatonin | 1 gummy | 90 | $10.98 | Rung 4: unverified | Check price |
| Natrol Melatonin 1 mg | $0.082 | 1 mg melatonin | 1 tablet | 180 | $14.77 | Rung 4: unverified | Check price |
| Zarbee's Adult Sleep with Melatonin 3 mg Gummiesgummy | $0.133 | 3 mg melatonin | 1 gummy | 60 | $23.89 | Rung 4: unverified | Check price |
| Nature's Truth Low Dose Melatonin 1 mg Gummiesgummy | $0.158 | 1 mg melatonin | 1 gummy | 60 | $9.49 | Rung 4: unverified | Check price |
| Life Extension Melatonin 300 mcg | $0.250 | 0.3 mg melatonin | 1 capsule | 100 | $7.50 | Rung 4: unverified | Check price |
| Life Extension Melatonin 6 Hour Timed Release 300 mcgtimed release | $0.300 | 0.3 mg melatonin | 1 tablet | 100 | $9.00 | Rung 4: unverified | Check price |
Cost per 1 mg = current Amazon price for the exact container (verified 2026-09-17) divided by total active content in the container, times 1. The spread from Nature Made Melatonin 3 mg to Life Extension Melatonin 6 Hour Timed Release 300 mcg is 20.1× for the same active. Prices move week to week.
Why the number is per 1 mg, and what the price actually buys
Melatonin is sold from 0.3 mg to 10 mg per piece, so a per-serving price compares a physiological dose with a thirty-fold larger one. This page prices every product per 1 mg of melatonin from its label, which makes the tablets comparable; the per-serving price is in the product-by-product list below, because if you take 0.3 or 1 mg the per-milligram column rewards big tablets you would have to split. The other reason the quality column matters more here than the price is that measured melatonin content in this category has been found to range from 83% below to 478% above the label, so the “milligram” you are pricing is nominal unless someone has checked it.
Across the 8 products the spread is 20.1× per 1 mg. 1 of them is in an independent certification registry (the quality column, from our third-party-tested check). Over a year at 3 mg a night the gap between the cheapest and most expensive is $312.18.
Cost per 1 mg, product by product
Each line is the arithmetic behind the table: container price divided by servings, then scaled per 1 mg, then multiplied out to a year at one dose a day. Cheapest first.
- Nature Made Melatonin 3 mg: $10.73 for 240 servings of 3 mg melatonin is $0.045 a serving and $0.015 per 1 mg, or $5.44 a year. Rung 1: USP Verified listing.
- Nature's Bounty Melatonin 3 mg Quick Dissolve: $7.23 for 120 servings of 3 mg melatonin is $0.06 a serving and $0.020 per 1 mg, or $7.33 a year. Rung 4: unverified.
- Natrol Melatonin 5 mg Gummies: $10.98 for 90 servings of 5 mg melatonin is $0.12 a serving and $0.024 per 1 mg, or $8.91 a year. Rung 4: unverified. Note: gummy.
- Natrol Melatonin 1 mg: $14.77 for 180 servings of 1 mg melatonin is $0.08 a serving and $0.08 per 1 mg, or $29.95 a year. Rung 4: unverified.
- Zarbee's Adult Sleep with Melatonin 3 mg Gummies: $23.89 for 60 servings of 3 mg melatonin is $0.40 a serving and $0.13 per 1 mg, or $48.44 a year. Rung 4: unverified. Note: gummy.
- Nature's Truth Low Dose Melatonin 1 mg Gummies: $9.49 for 60 servings of 1 mg melatonin is $0.16 a serving and $0.16 per 1 mg, or $57.73 a year. Rung 4: unverified. Note: gummy.
- Life Extension Melatonin 300 mcg: $7.50 for 100 servings of 0.3 mg melatonin is $0.07 a serving and $0.25 per 1 mg, or $91.25 a year. Rung 4: unverified.
- Life Extension Melatonin 6 Hour Timed Release 300 mcg: $9.00 for 100 servings of 0.3 mg melatonin is $0.09 a serving and $0.30 per 1 mg, or $109.50 a year. Rung 4: unverified. Note: timed release.
Why per milligram, and what the trials found about dose
Across 19 placebo-controlled trials in 1,683 people, melatonin shortened time to fall asleep by about 7 minutes and lengthened total sleep by about 8 minutes, with a small improvement in sleep quality; longer trials and higher doses showed larger effects on latency and total sleep, but dose made no difference to sleep quality (Ferracioli-Oda 2013, PMID 23691095). The reason the per-milligram figure is nominal is measured: in 31 supplements, content ranged from 83% below to 478% above the label, the same product varied by up to 465% between lots, and 71% missed their claim by more than 10% (Erland 2017, PMID 27855744); a 2023 JAMA analysis of melatonin gummies reported the same labelled-versus-measured pattern (Cohen 2023, PMID 37097362). Price the milligram, but buy the product whose milligram has been checked.
Reading the quality column
The quality column is the same four-rung ladder as the third-party-tested page, compressed to a phrase. Rung 1 means the exact product appears in an independent certification registry in our snapshots; rung 2 means the brand publishes a lot-specific certificate of analysis you can match to the number on your container; rung 3 means a representative or undated report; rung 4 means a claim on the label or website with nothing behind it that we could open, or a brand site that blocked our check. The rung does not change the cost per dose, but it changes what the cost per dose is buying: at rung 4 you are paying for the molecule and the brand’s word; at rung 1 you are paying for the molecule and someone else’s test of it.
How to run the same calculation on any bottle
- Take the price and the servings count from the container: $10.73 and 240 servings for Nature Made Melatonin 3 mg.
- Divide price by servings: $10.73 ÷ 240 = $0.045 a serving.
- There is no third step here: this category is priced per serving because the products share no declared active unit, so the serving price is the dose price. The eurycomanone column shows what each serving declares.
- Multiply by 365 for the yearly figure: $5.44. Compare that number, never the sticker price.
What moves this ranking is dose per piece and format. Gummies cost more per milligram than tablets and are the format with the worst measured label accuracy; timed-release tablets price the coating; 0.3 mg products are expensive per milligram and cheap per night. The count per bottle matters less than usual because a bottle lasts months at one piece a night. Every figure is computed from the catalog at build time, none is typed.
Which melatonin to buy
Product links go to Amazon and we may earn a commission if you buy. It never changes which product we pick or what we say about it. How we choose.
Frequently asked questions
What is the cheapest melatonin per dose?
Nature Made Melatonin 3 mg at $0.015 per 1 mg at current Amazon prices ($10.73 for 240 servings), or about $5.44 a year. The most expensive bottle we track, Life Extension Melatonin 6 Hour Timed Release 300 mcg, is $0.30 per dose, 20.1 times as much, for the same melatonin.
What is the cheapest melatonin that is actually third-party certified?
Nature Made Melatonin 3 mg at $0.015 per 1 mg, listed as "Nature Made Melatonin 3 Mg Tablets" in the USP Verified registry. It is also the cheapest melatonin of any kind we track, so certification costs nothing here. The full verification ladder is on the third-party-tested page.
Why price melatonin per 1 mg instead of per serving?
Because pieces run from 0.3 mg to 10 mg, and a bottle of 240 tiny doses can cost more per milligram than a bottle of 60 large ones while costing far less per night. Per 1 mg puts the tablets on one scale; use the per-serving figure in the product-by-product list if your dose is a fixed low one and you are not splitting tablets.
Is expensive melatonin better?
Only when it buys a registry listing. Melatonin is a cheap molecule and the trials show a modest effect at any dose, so a high price is buying a brand, a gummy format or a timed-release coating, none of which changes the melatonin. A USP Verified tablet is the one premium that changes what you know about the dose.
How much does a year of melatonin cost?
At one 5 g dose a day: $5.44 for Nature Made Melatonin 3 mg, $5.44 for the cheapest certified product, and $109.50 for Life Extension Melatonin 6 Hour Timed Release 300 mcg. Loading for a week adds about 15 doses.
Related guides
- Third-party tested melatonin: which are certified
- Best melatonin, ranked
- Melatonin gummies
- Melatonin dosage guide
Sources
- Ferracioli-Oda E, et al. “Meta-analysis: melatonin for the treatment of primary sleep disorders.” PLoS One. 2013. PMID: 23691095
- Erland LA, Saxena PK. “Melatonin Natural Health Products and Supplements: Presence of Serotonin and Significant Variability of Melatonin Content.” J Clin Sleep Med. 2017. PMID: 27855744
- Cohen PA, et al. “Quantity of Melatonin and CBD in Melatonin Gummies Sold in the US.” JAMA. 2023. PMID: 37097362
- Product labels and current Amazon prices for each container, verified 2026-09-17; verification rungs from our registry and brand-site check (see the third-party-tested page).