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Melatonin 1 mg

Swanson Premium Brand
4.8
★ ★ ★ ★ ★
(2032 ratings)
Melatonin 1 mg
Product Image
Score85
The 1 mg capsule provides low sleep-onset support, with no sustained-release coverage as the main trade-off.
How scoring works
Quantity:120 Capsule(s) • (120 servings)
Goals:
Sleep Support

Score 85

The 1 mg capsule provides low sleep-onset support, with no sustained-release coverage as the main trade-off.
How scoring works
$6.99($0.05 per serving)
iHerb
$ 6.99
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Analysis

Melatonin is supplied at 1 mg in one capsule. The amount is closely aligned with cautious, physiologically modest use. The clearly listed amount makes dose comparison simple.

The main benefit is support for circadian timing and falling asleep when a delayed schedule is the problem. The immediate-release format is aimed at sleep onset rather than all-night maintenance. It does not add a separate pathway for physical tension or daytime stress resilience.

The 120-serving supply supports a long, practical routine. The single-active formula keeps the purpose and serving easy to assess. Melatonin can still cause morning drowsiness or vivid dreams, especially when taken too late.

Who is it for
  • Adults seeking support for sleep timing or delayed onset
  • People who prefer a simple capsule
Best for
  • Sleep-onset support
  • Circadian-timing routines

Pros

  • 1 mg melatonin amount is clearly listed
  • One-unit serving is simple
  • 120 servings per container
  • Focused single-active formula

Cons

  • No sustained-release feature for nighttime awakenings
  • Covers only the circadian pathway
  • No separate relaxation pathway

Warnings

  • The 1 mg melatonin serving may cause next-day drowsiness, vivid dreams, headache, or dizziness.
  • Do not drive or perform safety-sensitive work after taking melatonin or the next morning if alertness is impaired.
  • Alcohol, sleep medicines, and other sedatives can add to melatonin-related drowsiness.

Nutrient quality

88 Highest impact

The capsule provides straightforward immediate-release delivery. The low 1 mg melatonin amount is well aligned with routine sleep-onset use.

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Ingredient transparency

84 Highest impact

Every supplied active ingredient has a specific amount and understandable name. Serving count is available, but intake directions and inactive ingredients are absent from the supplied label details.

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Customer satisfaction

71 High impact

The supplied aggregate rating is strong and the review volume adds useful statistical stability. No review text is provided to check recurring complaints or product-specific experiences.

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Value for money

95 Highest impact

Serving economics appear very strong relative to the clearly disclosed melatonin amount. The simple formula avoids paying for decorative active ingredients.

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Goals

Sleep Support
Impact
Highest effect
A+ Goal FitA+ Strength of SupportC+ CoverageA+ Formula Quality
Melatonin · 1 mg

Melatonin at 1 mg directly supports circadian timing and may help shorten the time needed to fall asleep. The single-active format makes the sleep purpose and amount easy to assess.

The formula does not address physical relaxation, mineral needs, or stress-related sleep disruption. Melatonin can cause next-day drowsiness or vivid dreams, so users should avoid driving if they feel impaired.

Study evidence
Melatonin Supportive 181 studies

Ingredients

IngredientAmount per serving
Melatonin
1 mg
Adults 18–50
Report overview
Melatonin · 1 mg OverallScore72
F Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA+ Value

A low 1 mg dose closely matches physiological use and allows cautious dosing. The standard capsule is immediate release, with no stated overnight-release feature. Its very low serving cost is attractive, though no independent purity certification is provided.

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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. 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
  3. 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
  4. 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
  5. 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
  6. Effects of Melatonin Treatment on Perioperative Sleep Quality: A Systematic Review and Meta-Analysis with Trial Sequential Analysis of Randomized Controlled Trials.
    Gao Y; Chen X; Zhou Q; Song J; Zhang X; Sun Y; Yu M; Li Y · Nature and science of sleep · 2022
    Meta-analysis725 participants10 studies pooledSleep Support forMelatonin
  7. 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
  8. 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
  9. 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
  10. 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
  11. 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