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Melatonin 3 mg

Swanson Premium Brand
4.7
★ ★ ★ ★ ★
(27629 ratings)
Melatonin 3 mg
Product Image
Score82
A simple, affordable 3 mg capsule fits sleep-onset use. It offers no extended-release support and may be more than very sensitive users need.
How scoring works
Quantity:60 Capsule(s) • (60 servings)
Goals:
Sleep Support
General Health
Stress Relief
Brain Health

Score 82

A simple, affordable 3 mg capsule fits sleep-onset use. It offers no extended-release support and may be more than very sensitive users need.
How scoring works
$7.69($0.12 per serving)
iHerb
$ 7.69
iHerb
$ 7.69
Amazon
$ 7.69
Walmart
$ 7.69
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Analysis

The 3 mg serving is a moderate melatonin amount that may help people who have difficulty settling at bedtime. A single capsule keeps dosing clear and convenient.

No unrelated active ingredients complicate tolerance or interaction screening. Immediate-release delivery is better aligned with sleep initiation than repeated waking later in the night.

Low serving cost and a very large consumer-use history support practical value. Sensitive users may still find 3 mg more than needed and should account for possible morning grogginess.

Who is it for
  • Adults seeking a moderate melatonin amount
  • People with sleep-onset difficulty
  • Users wanting a simple capsule
Best for
  • Bedtime sleep timing
  • Short-term schedule changes
  • Low-cost routine use

Pros

  • Clear 3 mg amount
  • Single active ingredient
  • Low serving cost
  • Large consumer-use history

Cons

  • No overnight-release feature
  • Capsule cannot be easily divided
  • May cause morning grogginess
  • No complementary relaxation ingredients

Warnings

  • Melatonin may cause next-day drowsiness; do not drive until its effects are known
  • Alcohol, sedatives, and other sleep aids may add to drowsiness

Nutrient quality

88 Highest impact

Standard immediate release mainly supports sleep onset. The melatonin amount fits a practical sleep-support range.

Ingredient transparency

78 High impact

The melatonin and any listed supporting nutrients have specific amounts. The provided facts omit the complete inactive-ingredient and flavoring list.

Customer satisfaction

73 High impact

The supplied aggregate rating is very strong. No specific review comments are provided to assess whether negative complaints repeat.

Value for money

90 Highest impact

The formula quality is reasonable for its simple sleep-support role. The low recurring cost provides good serving value.

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Goals

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

Melatonin at 3 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
General Health
Impact
High effect
C Goal FitA- Strength of SupportD CoverageA+ Formula Quality

Melatonin may support general well-being indirectly when circadian timing or sleep onset is disrupted. Evidence for sleep timing is established, but it is a situational aid rather than broad daily nutrition.

The 3 mg capsule gives a clear, meaningful amount in one unit. Immediate-release delivery does not support all-night maintenance, and melatonin can cause next-day drowsiness if timing or individual sensitivity is unfavorable.

Study evidence
Melatonin Supportive 69 studies
Stress Relief
Impact
High effect
C Goal FitB Strength of SupportD CoverageA+ Formula Quality

Melatonin may support recovery when stress disrupts sleep onset. The 3 mg amount is clearly stated and practical for short-term evening use.

Benefits remain tied to sleep rather than direct daytime stress regulation. Standard capsule delivery does not provide sustained release for overnight maintenance.

Study evidence
Melatonin Supportive 21 studies
Brain Health
Impact
High effect
C- Goal FitB+ Strength of SupportD- CoverageA+ Formula Quality

A 3 mg melatonin amount may support brain health indirectly by improving sleep timing and overnight recovery. The dose is clearly disclosed in a simple one-capsule format.

It does not directly support memory, neurotransmitter synthesis, cerebral energy, or structural brain health. Morning grogginess or vivid dreams can occur, particularly in people who need less melatonin.

Study evidence
Melatonin Supportive 29 studies

Ingredients

IngredientAmount per serving
Melatonin
3 mg
Adults 18–50
Report overview
Melatonin · 3 mg OverallScore69
F Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA- Value

A clearly labeled 3 mg dose provides strong physiological alignment in one capsule. Standard immediate-release delivery targets sleep onset rather than all-night maintenance. The cost is near the collection median, and no independent purity certification is stated.

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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. 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. 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
  20. 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
  21. 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
  22. The impact of oral melatonin on pain and anxiety reduction during venipuncture in pediatric patients: a double-blind randomized clinical trial.
    Rahafard S; Akbari Jokar Z; Hosseini SA; Alaee E · Annals of medicine and surgery (2012) · 2024
    Randomized trial202 participantsStress Relief forMelatonin
  23. Comparison of Effects of Melatonin and Gabapentin on Post Operative Anxiety and Pain in Lumbar Spine Surgery: A Randomized Clinical Trial.
    Javaherforooshzadeh F; Amirpour I; Janatmakan F; Soltanzadeh M · Anesthesiology and pain medicine · 2022
    Randomized trial90 participantsStress Relief forMelatonin
  24. Melatonin for pre- and postoperative anxiety in adults.
    Hansen MV; Halladin NL; Rosenberg J; Gögenur I; Møller AM · The Cochrane database of systematic reviews · 2015
    Meta-analysis774 participants12 studies pooledStress Relief forMelatonin
  25. Effects of melatonin intake on depression and anxiety in postmenopausal women: a systematic review and meta-analysis of randomised controlled trials.
    Demirhan Kayacik A; İlcioglu K · Archives of women's mental health · 2024
    Meta-analysis441 participants5 studies pooledStress Relief forMelatonin
  26. Premedication effect of melatonin on propofol induction dose for anesthesia, anxiety, orientation and sedation after abdominal surgery: a double-blinded randomized trial.
    Norouzi A; Fateh S; Modir H; Kamali A; Akrami L · Medical gas research · 2020
    Randomized trial88 participantsStress Relief forMelatonin