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Melatonin Plus L-Theanine

AN Amazing Nutrition Amazing Formulas
4.7
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(346 ratings)
Melatonin 10 mg
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Score70

An excessive 10 mg melatonin dose and token theanine amount make this an unbalanced relaxation formula.

How scoring works
Quantity:120 Tablet(s) • (120 servings)
Goals:
Sleep Support

Score 70

An excessive 10 mg melatonin dose and token theanine amount make this an unbalanced relaxation formula.

How scoring works
$9.98($0.08 per serving)
Pure Formulas
$ 9.98
Vitacost
$ 11.73
iHerb
$ 10.99
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Analysis

The tablet combines 10 mg melatonin with 5.5 mg L-theanine. Melatonin overwhelmingly drives the formula because theanine is far below a substantial standalone amount.

The high melatonin dose may increase morning grogginess and vivid dreams. A standard tablet also offers no overnight-release benefit.

One hundred twenty servings provide strong package duration, but the formula is poorly balanced. A lower melatonin amount with meaningful theanine would better match the stated purpose.

Who is it for
  • Experienced 10 mg melatonin users
  • People who do not rely on theanine for relaxation
  • Long-supply buyers
Best for
  • High-dose sleep-onset use
  • Users prioritizing melatonin over stress support
  • Established routines only

Pros

  • One-tablet serving
  • One hundred twenty servings
  • Clear active amounts
  • Includes both sleep and relaxation categories

Cons

  • Ten milligrams melatonin is very high
  • Only 5.5 mg theanine
  • No sustained release
  • Poor formula balance

Warnings

  • Ten milligrams may cause marked morning grogginess, vivid dreams, or headache
  • Theanine and melatonin may add to sedative effects
  • Do not combine casually with alcohol or sedative medicines

Nutrient quality

54 Moderate impact

The standard delivery format offers no controlled overnight release. The high melatonin amount is unnecessarily aggressive for many users.

Ingredient transparency

82 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

66 High impact

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

Value for money

77 High impact

Serving cost is low for the disclosed formula. The unnecessarily high amount weakens value for cautious routine use.

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Goals

Sleep Support
Sleep Support
Impact
Moderate effect
A+ Goal FitD- Strength of SupportD+ CoverageC Formula Quality
Melatonin · 10 mgTheanine · 5.5 mg

Melatonin directly supports circadian sleep signaling, while L-theanine is intended to promote mental relaxation. The one-tablet format clearly discloses both actives.

The 10 mg melatonin dose may cause next-day grogginess, while 5.5 mg of L-theanine is far below a meaningful standalone amount. The pairing is sensible in theory but poorly balanced in practice.

Study evidence
Melatonin Supportive 181 studies
Theanine Supportive 8 studies

Ingredients

IngredientAmount per serving
Melatonin
10 mg
L-Theanine
5.5 mg
Gluten Free Adults 18–50 Dairy Free Sugar Free Women
Report overview
Melatonin · 10 mg OverallScore52
F Active Ingredient Quality & BioavailabilityC Dose, Safety & Label TransparencyA+ Value

The one-tablet serving offers excellent cost efficiency and clearly states the melatonin amount. The high dose may increase next-day grogginess, and the small amount of L-theanine is unlikely to offset that dosing concern. A standard tablet provides neither rapid oral delivery nor overnight release, and no independent purity seal is listed.

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 10 mg. The focused melatonin formula does not replace the original’s additional active ingredients.</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 a lower dose than the original's 10 mg. The focused melatonin formula does not replace the original’s additional active ingredients.</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 a lower dose than the original's 10 mg. The focused melatonin formula does not replace the original’s additional active ingredients.</p>
87 Budget

Melatonin 1 mg

Nature's Bounty
<p>The 1 mg immediate-release tablet provides a lower dose than the original's 10 mg at a lower serving cost. The focused melatonin formula does not replace the original’s additional active ingredients.</p>
86 Budget

Fast-Dissolve Melatonin 3 mg Artificial Strawberry Flavor

Spring Valley
<p>The 3 mg fast-dissolve tablet provides a lower dose than the original's 10 mg at a lower serving cost. The focused melatonin formula does not replace the original’s additional active ingredients.</p>
85 Budget

Melatonin 1 mg

Swanson Premium Brand
<p>The 1 mg immediate-release capsule provides a lower dose than the original's 10 mg at a lower serving cost. The focused melatonin formula does not replace the original’s additional active ingredients.</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. The focused melatonin formula does not replace the original’s additional active ingredients.</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. The focused melatonin formula does not replace the original’s additional active ingredients. 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. The focused melatonin formula does not replace the original’s additional active ingredients.</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. 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
  3. 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
  4. 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
  5. 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
  6. Effects of L-Theanine Administration on Stress-Related Symptoms and Cognitive Functions in Healthy Adults: A Randomized Controlled Trial.
    Hidese S; Ogawa S; Ota M; Ishida I; Yasukawa Z; Ozeki M; Kunugi H · Nutrients · 2020
    Randomized trial30 participantsSleep Support forTheanine
  7. Comparison Between Efficacy of Oral Melatonin and Oral L-theanine in Improving Sleep in Cancer Patients Suffering From Insomnia: A Randomised Double-blinded Placebo-controlled Study.
    Kurdi MS; As A; Ladhad DA; Mitragotri MV; Baiju A · Indian journal of palliative care · 2024
    Randomized trial120 participantsSleep Support forTheanine
  8. The effects of L-theanine consumption on sleep outcomes: A systematic review and meta-analysis.
    Bulman A; D'Cunha NM; Marx W; Turner M; McKune A; Naumovski N · Sleep medicine reviews · 2025
    Meta-analysis897 participants19 studies pooledSleep Support forTheanine
  9. In Search of a Safe Natural Sleep Aid.
    Rao TP; Ozeki M; Juneja LR · Journal of the American College of Nutrition · 2016
    Narrative reviewSleep Support forTheanine
  10. L-theanine in the adjunctive treatment of generalized anxiety disorder: A double-blind, randomised, placebo-controlled trial.
    Sarris J; Byrne GJ; Cribb L; Oliver G; Murphy J; Macdonald P; Nazareth S; Karamacoska D; Galea S; Short A; Ee C; Birling Y; Menon R; Ng CH · Journal of psychiatric research · 2020
    Randomized trial46 participantsSleep Support forTheanine