Melatonin Plus L-Theanine

Melatonin Plus L-Theanine

Format:Tablet Quantity: 120 Tablet(s) · 120 servings
Goals
$9.98 $0.08 per serving

Product analysis

57 out of 100

Melatonin Plus L-Theanine mainly supports sleep timing and may help with falling asleep, with melatonin providing most of its supported benefit.

AI assessment of the formula, label and price. How scoring works

Nutrient Quality20

Neither ingredient has its form identified, limiting comparisons of quality. The named combination alone does not establish an advantage over other preparations.

Ingredient Transparency63

Both ingredient amounts are disclosed, so their contributions can be compared. Neither form is specified, leaving the type of preparation unclear.

Value For Money70

The melatonin contribution is affordable at the full serving cost. The value of the added theanine remains uncertain.

Customer Satisfaction75

Customer feedback is very positive. Several hundred ratings provide a useful base for judging satisfaction.

Product Focus85

Melatonin supplies most of the sleep-related support, with little supported contribution from the small theanine amount. The melatonin serving is above lower amounts used in small studies, without showing greater benefit.

Format
Tablet
Container
120 Tablet(s)
Per serving
$0.08
Customer rating
4.7 · 346 ratings
Report analysis

Goals

Sleep Support
Impact
Highest effect
A- Ingredient FitD+ PathwaysA+ EvidenceA+ Formulation Logic
Melatonin · 10 mgTheanine · 5.5 mg
Study evidence
Melatonin Supportive 181 studies
Theanine Supportive 8 studies

Ingredients

IngredientAmount per servingScore
Melatonin (as N-Acetyl-5-Methoxytryptamine)
10 mg 41
L-Theanine
5.5 mg
Gluten Free Adults 18–50 Dairy Free Sugar Free Women
Report overview
F Active Ingredient Quality & BioavailabilityD- Dose, Safety & Label TransparencyA- Value
Each serving provides 10 mg of melatonin at a moderate cost per serving. It is a higher amount that may cause morning grogginess. A GMP claim is present, but independent finished-batch verification is not established. The melatonin form is unspecified.
How this ingredient is rated

Active Ingredient Quality & Bioavailability20

A GMP claim is present, but independent finished-batch verification is not established.
Third-Party Purity Verification
GMP is claimed, without established independent verification of the finished batch.

Dose, Safety & Label Transparency40

Each serving contains 10 mg of melatonin. Higher amounts may cause morning grogginess.
Physiological Dosing Alignment
The serving provides 10 mg of melatonin. A higher amount may cause morning grogginess.

Value85

The cost per serving is moderate.
Price Per Serving Efficiency
Each serving costs moderate.
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