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Melatonin-SR

Quality Of Life
4.6
★ ★ ★ ★ ★
(128 ratings)
Melatonin 5 mg
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Score75
Sustained release supports both sleep timing and overnight maintenance in a focused capsule. The 5 mg amount may be excessive for sensitive users and can carry into the morning.
How scoring works
Quantity:30 Vegicap(s) • (30 servings)
Goals:
Sleep Support

Score 75

Sustained release supports both sleep timing and overnight maintenance in a focused capsule. The 5 mg amount may be excessive for sensitive users and can carry into the morning.
How scoring works
$11.96($0.39 per serving)
iHerb
$ 11.96
Pure Formulas
$ 11.96
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Analysis

Sustained-release melatonin gives this focused formula a clear purpose: supporting sleep timing while extending delivery through the night. The 5 mg amount is fully disclosed, and the controlled-release design adds functional depth without extra active ingredients.

Five milligrams is a relatively high starting amount for people who are sensitive to melatonin. Extended delivery can also increase the chance of lingering morning drowsiness, particularly when the capsule is taken late.

The formula best fits adults who already know that melatonin suits them and specifically want overnight release. People new to melatonin or mainly seeking help with sleep onset may prefer a lower amount or a different release profile.

Who is it for
  • Adults who already tolerate melatonin
  • People seeking sustained overnight release
  • Users whose sleep concern includes nighttime waking
Best for
  • Sleep timing with extended delivery
  • Overnight sleep maintenance
  • A focused single-active formula

Pros

  • Uses a sustained-release delivery system
  • Clearly states the 5 mg active amount
  • Avoids unnecessary companion actives

Cons

  • Five milligrams may be more than sensitive users need
  • Extended release may not suit onset-only needs
  • Value is moderate for a single active

Warnings

  • The 5 mg sustained-release dose may cause next-day drowsiness, especially when taken late.
  • Avoid driving or other alertness-dependent activities if morning sedation occurs.
  • People sensitive to melatonin may find the full 5 mg dose difficult to tolerate.

Nutrient quality

80 Highest impact

Sustained-release technology is well matched to sleep maintenance. The relatively high amount is the main balance and tolerability concern.

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Ingredient transparency

75 High impact

Active amounts are listed and no proprietary blend hides the supplied doses. Missing complete directions, excipients, and some source or standardization details keep disclosure incomplete.

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Customer satisfaction

64 Moderate impact

The supplied average is strong and supported by a moderate review base. Specific review comments were not provided, so repeated complaints and purpose-specific experiences cannot be assessed.

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Value for money

80 High impact

A specialized release form and focused formula provide fair value. The high dose may reduce practical value for users who need only a small amount.

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Report analysis

Goals

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

Sustained-release melatonin is closely aligned with circadian timing and may also support sleep maintenance. The active amount is clear, although it is above the preferred physiological range.

The controlled-release design gives the single active more functional depth without adding unnecessary ingredients. The full dose may increase next-day sleepiness, especially in people sensitive to melatonin or when taken late at night.

Study evidence
Melatonin Supportive 181 studies

Ingredients

IngredientAmount per serving
MicroActive Melatonin
5 mg
Gluten Free Adults 18–50 Vegetarian
Report overview
Melatonin · 5 mg OverallScore65
D Active Ingredient Quality & BioavailabilityB+ Dose, Safety & Label TransparencyC Value

The capsule uses sustained-release technology to support sleep maintenance, while onset remains typical of a standard capsule. A single capsule clearly provides 5 mg, which is above the preferred physiological range. Cost is just below the highest defined threshold, and no independent purity certification is disclosed.

View ingredientView products
Loading alternative details
82 Performance

Melatonin 3 mg

NOW
Melatonin directly supports sleep timing, and the moderate 3 mg melatonin amount is fully disclosed; its dose and delivery offer a clearer option when the original uses a stronger amount than many people need. The liquid or dissolving delivery may support prompt use around bedtime; Melatonin may cause next-day drowsiness, and combining it with alcohol or other sedatives can increase impairment.
80 Performance

Melatonin 3 mg

Nature Made
A modest melatonin amount provides well-balanced routine sleep support; its dose and delivery offer a clearer option when the original uses a stronger amount than many people need. Basic tablet delivery and a low-value calcium addition are the main limitations; Melatonin may cause next-day drowsiness, and combining it with alcohol or other sedatives can increase impairment.
86 Performance

Melatonin 1.0 mg Orange Flavor

Source Naturals Sleep Science
The 1 mg amount is well aligned with low-dose sleep support; its dose and delivery offer a clearer option when the original uses a stronger amount than many people need. The dissolving format may support quicker onset but not overnight release; Melatonin may cause next-day drowsiness, and combining it with alcohol or other sedatives can increase impairment.
87 Budget

Melatonin 3 mg

NOW
A practical melatonin amount in a simple capsule offers focused sleep-onset support and a long supply; the lower serving cost improves economy when the original uses a stronger amount than many people need. Conventional release does not cover overnight maintenance, but the exceptionally low serving cost is compelling; Melatonin may cause next-day drowsiness, and combining it with alcohol or other sedatives can increase impairment.
82 Budget

Melatonin 3 mg

21st Century
A modest melatonin amount provides well-balanced routine sleep support; the lower serving cost improves economy when the original uses a stronger amount than many people need. Basic tablet delivery and a low-value calcium addition are the main limitations; Melatonin may cause next-day drowsiness, and combining it with alcohol or other sedatives can increase impairment.
90 Budget

Fast-Dissolve Melatonin 3 mg Artificial Strawberry Flavor

Spring Valley
A physiologically aligned amount and fast-dissolve delivery create a strong sleep-onset formula; the lower serving cost improves economy when the original uses a stronger amount than many people need. The very low serving cost is compelling, although no sustained release supports sleep maintenance; Melatonin may cause next-day drowsiness, and combining it with alcohol or other sedatives can increase impairment.
85 Value

Melatonin 3 mg

NOW
Melatonin directly supports sleep timing, and the moderate 3 mg melatonin amount is fully disclosed; the quality-to-cost balance is favorable when the original uses a stronger amount than many people need. The liquid or dissolving delivery may support prompt use around bedtime; Melatonin may cause next-day drowsiness, and combining it with alcohol or other sedatives can increase impairment.
90 Value

Melatonin 1.0 mg Peppermint Flavor

Source Naturals Sleep Science
The 1 mg amount is well aligned with low-dose sleep support; the quality-to-cost balance is favorable when the original uses a stronger amount than many people need. The dissolving format may support quicker onset but not overnight release; Melatonin may cause next-day drowsiness, and combining it with alcohol or other sedatives can increase impairment.
89 Value

Melatonin Lozenges 3 mg

Life Extension
The melatonin amount is well aligned with practical sleep support without being unnecessarily aggressive; the quality-to-cost balance is favorable when the original uses a stronger amount than many people need. The focused formula provides a straightforward option for sleep onset; Melatonin may cause next-day drowsiness, and combining it with alcohol or other sedatives can increase impairment.
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. 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