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Melatonin 3.0 mg

Source Naturals
4.6
★ ★ ★ ★ ★
(1418 ratings)
Melatonin 3 mg
Product Image
Score83
A useful 3 mg melatonin tablet with minor vitamin B6 and calcium. Conflicting serving information should be checked on the label.
How scoring works
Quantity:120 Tablet(s) • (60 servings)
Goals:
Sleep Support

Score 83

A useful 3 mg melatonin tablet with minor vitamin B6 and calcium. Conflicting serving information should be checked on the label.
How scoring works
$6.13($0.10 per serving)
Vitacost
$ 6.13
Amazon
$ 10.20
iHerb
$ 6.13
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Analysis

A 3 mg melatonin amount sits at the upper end of a practical low-dose range for sleep timing. One tablet provides the full serving, despite the bottle quantity suggesting two units per listed serving.

Vitamin B6 and calcium are clearly quantified but make small contributions to the sleep-focused formula. The ordinary tablet is better suited to sleep onset than overnight maintenance.

The bottle provides 60 listed servings at favorable value. Users should confirm the serving directions because the quantity and serving count imply two tablets even though the score analysis describes one-tablet dosing.

Who is it for
  • Adults seeking a 3 mg tablet
  • Users focused on sleep onset
  • People willing to verify serving directions
Best for
  • Circadian timing support
  • Straightforward tablet use
  • Economical servings

Pros

  • 3 mg melatonin amount
  • Vitamin B6 and calcium are disclosed
  • Favorable serving value

Cons

  • Serving-count information appears inconsistent
  • No sustained-release design
  • Extra nutrients add little sleep-specific value

Warnings

  • Verify the number of tablets per serving on the physical label
  • Melatonin may cause next-day drowsiness or vivid dreams

Nutrient quality

85 Highest impact

The 3 mg amount is a practical lower-dose option. The standard tablet lacks rapid-dissolve or sustained-release technology.

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Ingredient transparency

85 Highest impact

Active amounts are clear without a hidden blend. Complete directions and inactive ingredients remain unavailable.

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Customer satisfaction

69 High impact

The supplied average is strong and supported by substantial volume. No review themes were provided, so consistency and purpose-specific experience cannot be assessed.

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Value for money

89 Highest impact

A very low serving cost and clearly stated dose support value. Missing release tailoring and purity verification limit differentiation.

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Goals

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

The clearly stated melatonin amount directly supports sleep timing and onset in a simple one-tablet serving. Vitamin B6 and a small calcium amount add little sleep-specific value but do not conflict with the main active.

The ordinary tablet is immediate release, so it is better suited to falling asleep than maintaining sleep later in the night. Melatonin can cause drowsiness or vivid dreams, and users should avoid alertness-dependent tasks if grogginess persists.

Study evidence
Melatonin Supportive 181 studies
Vitamin B6 Disputed 7 studies

Ingredients

IngredientAmount per serving
Vitamin B6 (Pyridoxine Hydrochloride)
1 mg
Calcium (Dibasic Calcium Phosphate)
33 mg
Melatonin
3 mg
Adults 18–50 Women
Report overview
Melatonin · 3 mg OverallScore65
F Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA- Value

The melatonin dose aligns with the preferred low range and is clearly stated for one tablet. The hard-pressed tablet may disintegrate more slowly than liquid or fast-dissolve options, and it offers no technology for sleep maintenance. Its serving cost is efficient, though no independent purity certification is disclosed.

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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. 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. 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
  4. 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
  5. 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
  6. 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
  7. Efficacy of vitamins B1 and B6 as an adjunctive therapy to lithium in bipolar-I disorder: A double-blind, randomized, placebo-controlled, clinical trial.
    Zandifar A; Mousavi S; Schmidt NB; Badrfam R; Seif E; Qorbani M; Mehrabani Natanzi M · Journal of affective disorders · 2023
    Randomized trial66 participantsSleep Support forVitamin B6
  8. Therapeutic effects of magnesium and vitamin B6 in alleviating the symptoms of restless legs syndrome: a randomized controlled clinical trial.
    Jadidi A; Rezaei Ashtiani A; Khanmohamadi Hezaveh A; Aghaepour SM · BMC complementary medicine and therapies · 2023
    Randomized trial75 participantsSleep Support forVitamin B6
  9. Effects of poly-gamma-glutamic acid and vitamin B6 supplements on sleep status: a randomized intervention study.
    García-García C; Baik I · Nutrition research and practice · 2022
    Randomized trial47 participantsSleep Support forVitamin B6
  10. Effects of Vitamin B6 (Pyridoxine) and a B Complex Preparation on Dreaming and Sleep.
    Adventure-Heart DJ; Madden NA; Delfabbro P · Perceptual and motor skills · 2018
    Randomized trial100 participantsSleep Support forVitamin B6
  11. The effect of pyridoxine administration on melatonin secretion in normal men.
    Luboshitzky R; Ophir U; Nave R; Epstein R; Shen-Orr Z; Herer P · Neuro endocrinology letters · 2003
    Randomized trial12 participantsSleep Support forVitamin B6