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Melatonin 5 mg

Nature's Bounty
4.6
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(4262 ratings)
Melatonin 5 mg
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Score81

A simple softgel is convenient and economical, but the 5 mg dose is higher than many users need.

How scoring works
Quantity:90 Softgel(s) • (90 servings)
Goals:
Sleep Support

Score 81

A simple softgel is convenient and economical, but the 5 mg dose is higher than many users need.

How scoring works
$6.16($0.06 per serving)
Walmart
$ 11.82
Amazon
$ 22.99
iHerb
$ 6.16
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Analysis

The single softgel supplies 5 mg melatonin with no other listed actives. Softgel delivery may suit users who prefer an easy-to-swallow format.

The amount is above a conservative starting range. More melatonin does not reliably mean better sleep and may make next-day effects more noticeable.

Ninety servings offer convenient package life and favorable value. It fits established 5 mg users better than first-time or highly sensitive users.

Who is it for
  • Adults who already know they tolerate 5 mg melatonin
  • Users who prefer softgels
  • People seeking a simple sleep-onset formula
Best for
  • Occasional sleep-timing support
  • Travel-related schedule shifts
  • Users who do not need extended release

Pros

  • Single active ingredient
  • Easy-to-swallow softgel
  • Ninety servings
  • Clear one-softgel dose

Cons

  • Five milligrams may be excessive
  • No extended-release support
  • No adjustable dosing
  • No secondary relaxation ingredient

Warnings

  • Five milligrams may cause vivid dreams, headache, or next-morning grogginess
  • Do not combine casually with alcohol or sedative medicines
  • Avoid driving after use until next-day effects are known

Nutrient quality

81 Highest impact

The standard delivery format offers no controlled overnight release. The elevated melatonin amount may be more than some users need.

Ingredient transparency

83 Highest impact

All listed active ingredients have individual amounts and no proprietary blend hides them. Daily directions and the complete inactive-ingredient list are not supplied.

Customer satisfaction

69 High impact

The supplied average is favorable and the aggregate pool is substantial. No specific feedback is provided to assess recurring complaints or whether experience matches the intended use.

Value for money

91 Highest impact

Serving cost is low for the disclosed formula. The focused design avoids paying for unnecessary actives.

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Goals

Sleep Support
Impact
Highest effect
A Goal FitB Strength of SupportD+ CoverageA+ Formula Quality
Melatonin · 5 mg

Rapid-release melatonin directly supports circadian timing and sleep onset. The 5 mg amount is fully disclosed but exceeds what many users need for a starting dose.

The softgel favors faster onset rather than sustained overnight support. Sensitive users may experience vivid dreams, headache, or next-morning grogginess at this amount.

Study evidence
Melatonin Supportive 181 studies

Ingredients

IngredientAmount per serving
Melatonin
5 mg
Gluten Free Adults 18–50 Dairy Free Sugar Free
Report overview
Melatonin · 5 mg OverallScore65
F Active Ingredient Quality & BioavailabilityB+ Dose, Safety & Label TransparencyA+ Value

The rapid-release softgel supports a reasonably quick onset, but it does not provide sustained overnight delivery. The 5 mg dose is clear per softgel yet sits above the physiological range and may cause next-morning drowsiness in sensitive users. Value is excellent, while independent purity verification is not documented.

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Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. Meta-analysis: melatonin for the treatment of primary sleep disorders.
    Ferracioli-Oda E; Qawasmi A; Bloch MH · PloS one · 2013
    Meta-analysis1,683 participants19 studies pooledSleep Support forMelatonin
  2. Efficacy on sleep parameters and tolerability of melatonin in individuals with sleep or mental disorders: A systematic review and meta-analysis.
    Salanitro M; Wrigley T; Ghabra H; de Haan E; Hill CM; Solmi M; Cortese S · Neuroscience and biobehavioral reviews · 2022
    Meta-analysis1,998 participants34 studies pooledSleep Support forMelatonin
  3. Exogenous melatonin as a treatment for secondary sleep disorders: A systematic review and meta-analysis.
    Li T; Jiang S; Han M; Yang Z; Lv J; Deng C; Reiter RJ; Yang Y · Frontiers in neuroendocrinology · 2019
    Meta-analysis205 participants7 studies pooledSleep Support forMelatonin
  4. Efficacy of melatonin with behavioural sleep-wake scheduling for delayed sleep-wake phase disorder: A double-blind, randomised clinical trial.
    Sletten TL; Magee M; Murray JM; Gordon CJ; Lovato N; Kennaway DJ; Gwini SM; Bartlett DJ; Lockley SW; Lack LC; Grunstein RR; Rajaratnam SMW; Delayed Sleep on Melatonin (DelSoM) Study Group · PLoS medicine · 2019
    Randomized trial116 participantsSleep Support forMelatonin
  5. Melatonin treatment for age-related insomnia.
    Zhdanova IV; Wurtman RJ; Regan MM; Taylor JA; Shi JP; Leclair OU · The Journal of clinical endocrinology and metabolism · 2001
    Randomized trial30 participantsSleep Support forMelatonin
  6. Effects of melatonin on postoperative sleep quality: a systematic review, meta-analysis, and trial sequential analysis.
    Tsukinaga A; Mihara T; Takeshima T; Tomita M; Goto T · Canadian journal of anaesthesia = Journal canadien d'anesthesie · 2023
    Meta-analysis516 participants8 studies pooledSleep Support forMelatonin
  7. Unintended consequences: college students' melatonin usage, sleep disturbance, and depressive symptoms.
    Peltz JS; Rogge R · Sleep and biological rhythms · 2025
    Cohort study331 participantsSleep Support forMelatonin
  8. The Effectiveness of Melatonin for Sleep Disturbances in Parkinson' Disease: Systematic Review and Meta-Analysis.
    Yousef O; Abouelmagd ME; Khaddam H; Shbani A; Yousef R; Meshref M; Hanafi I · Journal of sleep research · 2026
    Meta-analysis409 participants8 studies pooledSleep Support forMelatonin
  9. Nightly treatment of primary insomnia with prolonged release melatonin for 6 months: a randomized placebo controlled trial on age and endogenous melatonin as predictors of efficacy and safety.
    Wade AG; Ford I; Crawford G; McConnachie A; Nir T; Laudon M; Zisapel N · BMC medicine · 2010
    Randomized trial791 participantsSleep Support forMelatonin
  10. Effects of exogenous melatonin on sleep: a meta-analysis.
    Brzezinski A; Vangel MG; Wurtman RJ; Norrie G; Zhdanova I; Ben-Shushan A; Ford I · Sleep medicine reviews · 2005
    Meta-analysis284 participants8 studies pooledSleep Support forMelatonin