21st Century, 21st Century, Melatonin, Prolonged Release, 10 mg, 120 Tablets

Name: 21st Century, Melatonin, Prolonged Release, 10 mg, 120 Tablets
Brand: 21st Century
Rating: 4.8 (4904 reviews)

21st Century, Melatonin, Prolonged Release, 10 mg, 120 Tablets — product photo 1

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Scored for

Outcome alternatives

21st Century120 count • 120 servingsAvailable now$10.44$0.09 / serving4.8 · 4,904 ratings100 / day

87−7 pts from leader

#31 of 7239 ranked for sleep qualityLeader · Source Naturals, Source Naturals, Sleep Science®, NightRest™ With Melatonin, 100 Tablets — 94

Why this ranks #31 for sleep quality

Evidence fitMelatonin is the strongest evidence signal for this outcome.
Dose fitMelatonin at 10 mg is higher than the studied 1-5 mg window.
Price / serving$0.09 per serving — low price tier for this outcome.
AvailabilityIn stock across major retailers; 99% availability confidence.
TrustStrong trust signals — consistently high marks from verified buyer ratings.

Trade-offsValue for money trails the rest of this listEvidence depth trails the rest of this list

The numbers · Sleep quality

What's inside

10 mgAbove rangehigher than the studied 1-5 mg window

Retailer links may be affiliate links. Rankings and placement are not paid placement.

Open at iHerb

Market trends

Price and daily demand history · last 10 crawls

$10.99+0% vs avg

Jul 18Jul 5

100 / day-27% vs avg

Jul 18Jul 5

Rating history

Rating quality and social-proof history · last 10 crawls

4.80 / 5+1% vs avg

Jul 18Jul 5

4,904+8% vs avg

Jul 18Jul 5

By outcome

vs overall leader for each ranked outcome — open any outcome to see its ranked alternatives.

11 outcomes

Show alternatives

Sleep qualityScoring−7 pts from leader

Product 87Leader 94

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Sleep latency−1 pts from leader

Product 86Leader 87

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Insomnia severityCategory leader

Product 86Leader 86

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Antioxidant capacity−9 pts from leader

Product 85Leader 94

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Sleep durationCategory leader

Product 85Leader 85

Showing the top 5 of 11 ranked outcomes.

What buyers report

Review Intelligence

4.8/ 5.0 · 4,904 reviews

Neutral read

“Customers consistently praise the melatonin tablets for their effectiveness in improving sleep quality and aiding with insomnia. Many highlight the small, easy-to-swallow size and lack of aftertaste. The prolonged release formula is particularly appreciated for helping users stay asleep throughout the night without waking up groggy. Users find the dosage appropriate, often noting that even half a tablet suffices. The product is also valued for its natural ingredients and good price point, with several customers mentioning they are repeat buyers due to positive experiences with both the product and iHerb's service.”

Highlights

Trusted brand

Small size

Stay asleep

Easy to swallow

Fall asleep

Longer sleep

Good ingredients

Prolonged release

Observations

Good dosage

Sleep support

Concerns

No concerns surfaced yet