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Liquid Melatonin

NOW
4.7
★ ★ ★ ★ ★
(3243 ratings)
Melatonin 3 mg
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Score85

A flexible 3 mg liquid is a strong sleep-onset option, provided each dose is measured consistently.

How scoring works
Quantity:2 Liquid(s) • (66 servings)
Goals:
Sleep Support
General Health
Brain Health
Immunity

Score 85

A flexible 3 mg liquid is a strong sleep-onset option, provided each dose is measured consistently.

How scoring works
$5.80($0.08 per serving)
Daily Vita
$ 5.80
Walmart
$ 8.40
iHerb
$ 6.11
Pure Formulas
$ 5.94
Vitacost
$ 6.57
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Analysis

The liquid serving provides 3 mg melatonin with no other listed actives. Liquid delivery supports users who avoid pills and can allow smaller portions when measured carefully.

The amount is more conservative than 5 or 10 mg products. Immediate liquid use favors sleep onset, not dependable overnight maintenance.

Sixty-six servings and low practical cost make it a useful sleep-focused option. Its general health, immune, and brain benefits are indirect and should not be the main reason to buy it.

Who is it for
  • Adults who prefer liquid supplements
  • Users wanting flexible melatonin portions
  • People focused on sleep onset
Best for
  • Adjustable sleep-timing support
  • Pill-free use
  • Travel-related schedule changes

Pros

  • Moderate 3 mg amount
  • Flexible liquid delivery
  • Sixty-six servings
  • Simple single-active formula

Cons

  • Drops may be measured inconsistently
  • No sustained-release effect
  • Broader listed goals are indirect
  • Flavor and inactive ingredients are not supplied

Warnings

  • Measure each liquid dose carefully to avoid unintended variation
  • Melatonin may cause vivid dreams or next-day drowsiness
  • Do not combine casually with alcohol or sedative medicines

Nutrient quality

93 Highest impact

The delivery format may support a quicker onset. The conservative melatonin amount fits cautious routine use.

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

70 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.

Report analysis

Goals

Sleep Support
Sleep Support
Impact
Highest effect
A+ Goal FitA Strength of SupportC+ CoverageA+ Formula Quality
Melatonin · 3 mg

Liquid melatonin directly supports circadian timing and may help users fall asleep sooner. The amount is physiologically aligned, and liquid delivery may provide a relatively quick onset.

The measured serving clearly states the full amount, although counting drops may be less exact than using a single tablet. Immediate delivery does not provide sustained overnight support.

Study evidence
Melatonin Supportive 181 studies
General Health
General Health
Impact
High effect
C- Goal FitB Strength of SupportD CoverageA Formula Quality

Melatonin may support sleep timing, which can indirectly contribute to daily recovery and well-being. The product is more suitable for a specific sleep need than for filling broad nutritional gaps.

The clearly stated amount makes use easy to assess, though immediate-release delivery offers no overnight support. Higher-dose versions may increase next-day grogginess or vivid dreams in sensitive users.

Study evidence
Melatonin Supportive 69 studies
Brain Health
Brain Health
Impact
Moderate effect
F Goal FitA- Strength of SupportF CoverageB Formula Quality

Melatonin may indirectly support cognitive recovery through better sleep timing rather than directly improving memory or focus. The liquid format allows flexible timing and a clearly stated amount.

A single circadian pathway leaves attention, circulation, membrane, and antioxidant needs uncovered. Melatonin may cause next-day drowsiness or vivid dreams in sensitive users.

Study evidence
Melatonin Supportive 29 studies
Immunity
Immunity
Impact
Moderate effect
D- Goal FitB- Strength of SupportF CoverageA- Formula Quality

Melatonin may support immune resilience indirectly by improving sleep, but it is not a primary immune active. The liquid provides a clearly measured amount with rapid delivery.

The single ingredient offers no direct barrier, mineral, or antioxidant nutrient coverage. Melatonin can cause next-day drowsiness, so users should avoid driving or other alertness-dependent activity if affected.

Study evidence
Melatonin Supportive 10 studies

Ingredients

IngredientAmount per serving
Melatonin
3 mg
Gluten Free Adults 18–50 Vegan Kosher Dairy Free Women Vegetarian
Report overview
Melatonin · 3 mg OverallScore76
F Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA+ Value

The liquid format supports rapid onset and supplies a physiologically aligned 3 mg dose. The measured serving is clear, but about twenty drops may be less precise than a single-unit dose. Value is excellent, though sustained-release support and third-party purity verification are not documented.

View ingredientView products
Loading alternative details
88 Performance

Melatonin 1.0 mg Orange Flavor

Source Naturals Sleep Science
<p>The dissolving tablet offers a clearly disclosed 1 mg amount for prompt sleep-onset use, providing a lower dose than the original's 3 mg. No sustained-release feature is identified for support later in the night.</p>
87 Performance

Melatonin Lozenges 3 mg

Life Extension
<p>The lozenge offers a clearly disclosed 3 mg amount for prompt sleep-onset use, providing the same 3 mg dose as the original. No sustained-release feature is identified for support later in the night.</p>
86 Performance

Melatonin 3 mg Fast Dissolve Strawberry Natural Flavor

Natrol
<p>The fast-dissolve tablet offers a clearly disclosed 3 mg amount for prompt sleep-onset use, providing the same 3 mg dose as the original. No sustained-release feature is identified for support later in the night.</p>
87 Budget

Melatonin 1 mg

Nature's Bounty
<p>The 1 mg immediate-release tablet provides a lower dose than the original's 3 mg at a lower serving cost. No sustained-release feature is identified for support later in the night.</p>
86 Budget

Fast-Dissolve Melatonin 3 mg Artificial Strawberry Flavor

Spring Valley
<p>The 3 mg fast-dissolve tablet provides the same 3 mg dose as the original at a lower serving cost. No sustained-release feature is identified for support later in the night.</p>
85 Budget

Melatonin 1 mg

Swanson Premium Brand
<p>The 1 mg immediate-release capsule provides a lower dose than the original's 3 mg at a lower serving cost. No sustained-release feature is identified for support later in the night.</p>
85 Value

Quick Dissolve Melatonin 3 mg

Nature's Bounty
<p>The 3 mg quick-dissolve tablet combines a practical sleep-onset dose with a lower serving cost. No sustained-release feature is identified for support later in the night.</p>
83 Value

Melatonin 3 mg

NOW
<p>The 3 mg liquid or dissolving format combines a practical sleep-onset dose with a lower serving cost. No sustained-release feature is identified for support later in the night. Vitamin B6 is included but adds little direct sleep value.</p>
86 Value

Melatonin Lozenge 2.5 mg

Nature's Way
<p>The 2.5 mg lozenge combines a practical sleep-onset dose with a lower serving cost. No sustained-release feature is identified for support later in the night.</p>
Report alternatives

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. Comparative Efficacy, Tolerability, and Acceptability of Donanemab, Lecanemab, Aducanumab, Melatonin, and Aerobic Exercise for a Short Time on Cognitive Function in Mild Cognitive Impairment and Mild Alzheimer's Disease: A Systematic Review and Network Meta-Analysis.
    Terao I; Kodama W · Journal of Alzheimer's disease : JAD · 2024
    Meta-analysis4,599 participants10 studies pooledBrain Health forMelatonin
  10. Melatonin for sleep and cognitive outcomes in older adults with cognitive impairment: a meta-analysis of randomised controlled trials.
    Mdluli NT; Banda KJ; Chang YC · Age and ageing · 2025
    Meta-analysis516 participants10 studies pooledBrain Health forMelatonin
  11. Add-on prolonged-release melatonin for cognitive function and sleep in mild to moderate Alzheimer's disease: a 6-month, randomized, placebo-controlled, multicenter trial.
    Wade AG; Farmer M; Harari G; Fund N; Laudon M; Nir T; Frydman-Marom A; Zisapel N · Clinical interventions in aging · 2015
    Randomized trial80 participantsBrain Health forMelatonin
  12. Early Oral Melatonin Supplementation Supports White Matter Maturation in Preterm Infants: Neuroprotective Insights of an Antioxidant Molecule.
    Garofoli F; Asteggiano C; Minniti ML; Accorsi P; Albertini R; Angelini M; Aversa S; Ballante E; Cabini RF; Caporali C; Cociglio S; Franco V; Longo S; Malerba L; Materia V; Mazzocchi L; Naboni C; Palmisani M; Pullega C; Pisoni C; Preda L; Riboli A; Risso FM; Rognone E; Savini G; Simoncelli AM; Villani P; Tzialla C; Pinelli L; Fazzi E; Chiapparini L; Borgatti R; Ghirardello S; Pichiecchio A; Orcesi S · Journal of pineal research · 2026
    Randomized trial54 participantsBrain Health forMelatonin
  13. Efficacy and Safety of Melatonin in Migraine Prophylaxis: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.
    Abouelmagd ME; Aldemerdash MA; Khatatbeh AA; Osman ASA; Abbas A; Allam S; AlEdani EM; Aldemerdash A; Monteith TS · Current pain and headache reports · 2026
    Meta-analysis788 participants9 studies pooledBrain Health forMelatonin
  14. Melatonin for preventing and treating jet lag.
    Herxheimer A; Petrie KJ · The Cochrane database of systematic reviews · 2001
    Systematic review10 studies pooledGeneral Health forMelatonin
  15. Pediatric Prolonged-Release Melatonin for Sleep in Children with Autism Spectrum Disorder: Impact on Child Behavior and Caregiver's Quality of Life.
    Schroder CM; Malow BA; Maras A; Melmed RD; Findling RL; Breddy J; Nir T; Shahmoon S; Zisapel N; Gringras P · Journal of autism and developmental disorders · 2019
    Randomized trial125 participantsGeneral Health forMelatonin
  16. Effect of melatonin supplementation on sleep quality: a systematic review and meta-analysis of randomized controlled trials.
    Fatemeh G; Sajjad M; Niloufar R; Neda S; Leila S; Khadijeh M · Journal of neurology · 2022
    Meta-analysis23 studies pooledGeneral Health forMelatonin
  17. Efficacy of melatonin for chronic insomnia: Systematic reviews and meta-analyses.
    Choi K; Lee YJ; Park S; Je NK; Suh HS · Sleep medicine reviews · 2022
    Meta-analysis24 studies pooledGeneral Health forMelatonin
  18. Effectiveness of melatonin for the treatment of nocturia: a randomized controlled trial.
    Leerasiri P; Pariyaeksut P; Hengrasmee P; Asumpinwong C · International urogynecology journal · 2023
    Randomized trial60 participantsGeneral Health forMelatonin
  19. Exogenous melatonin boosts vaccine-induced immunity in individuals with high pre-existing influenza immunity.
    Oda K; Danko J; Villasante E; Bergmann-Leitner E; Lee R; Wijayalath W · Frontiers in immunology · 2025
    Randomized trialImmunity forMelatonin
  20. Evaluation of melatonin effectiveness in the adjuvant treatment of ulcerative colitis.
    Chojnacki C; Wisniewska-Jarosinska M; Walecka-Kapica E; Klupinska G; Jaworek J; Chojnacki J · Journal of physiology and pharmacology : an official journal of the Polish Physiological Society · 2012
    Randomized trial60 participantsImmunity forMelatonin
  21. Pineal-opioid system interactions in the control of immunoinflammatory responses.
    Lissoni P; Barni S; Tancini G; Fossati V; Frigerio F · Annals of the New York Academy of Sciences · 1995
    Clinical trial130 participantsImmunity forMelatonin
  22. Influenza vaccine response is predicted by chronotype and differentially associated with pre- and post-vaccination sleep.
    Harrison EM; Lee RU; Porter CK; Isidean SD; Easterling AP; White L; Boulifard DA; DeTizio K; Liang Z; Sedegah M; Danko J; Glickman GL · Brain, behavior, & immunity - health · 2026
    Randomized trialImmunity forMelatonin
  23. Mechanisms and clinical evidence to support melatonin's use in severe COVID-19 patients to lower mortality.
    Tan DX; Reiter RJ · Life sciences · 2022
    Narrative review19 participantsImmunity forMelatonin
  24. 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
  25. 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