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Sleep + Calm Strawberry

Natrol
4.5
★ ★ ★ ★ ★
(6447 ratings)
Theanine 100 mg
Melatonin 6 mg
Product Image
Score64
Useful theanine and low cost are outweighed by aggressive melatonin and an undisclosed botanical blend.
How scoring works
Quantity:60 Gummy(ies) • (30 servings)
Goals:
Sleep Support
Mood Support
Stress Relief

Score 64

Useful theanine and low cost are outweighed by aggressive melatonin and an undisclosed botanical blend.
How scoring works
$9.98($0.33 per serving)
Vitacost
$ 17.32
Pure Formulas
$ 12.99
Walmart
$ 9.98
Amazon
$ 9.98
iHerb
$ 17.32
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Analysis

The adult gummy pairs a useful theanine amount with strong melatonin. Its simple bedtime positioning and chewable format may appeal to people who dislike tablets.

The melatonin amount may exceed what many users need and raises the likelihood of residual grogginess. A proprietary botanical blend is not itemized, while the gummy also adds a notable carbohydrate load.

The product best fits adults who already know they tolerate higher melatonin amounts. New users and those needing full ingredient visibility should choose a lower-dose, fully disclosed option.

Who is it for
  • Adults accustomed to higher melatonin doses
  • People who prefer gummies
Best for
  • Strong sleep-onset support
  • Chewable bedtime use

Pros

  • Useful theanine amount
  • Convenient gummy format
  • Core active amounts are disclosed

Cons

  • Melatonin amount is aggressive
  • Botanical blend is hidden
  • Gummy adds substantial carbohydrate

Warnings

  • Melatonin may cause significant next-day drowsiness; avoid driving until its effects are known
  • The hidden botanical blend prevents complete medication and allergy review

Nutrient quality

67 High impact

Theanine and melatonin provide meaningful support for relaxation and sleep timing. Higher melatonin and an opaque low-dose botanical blend reduce balance.

Ingredient transparency

49 Lower impact

Important active details are hidden or incomplete in the supplied label data. Complete daily directions and inactive-ingredient details are not available.

Customer satisfaction

70 High impact

The aggregate satisfaction measure is favorable, with response volume determining how much confidence it deserves. Comment-level evidence is absent, so recurring complaints and purpose fit cannot be verified.

Value for money

73 High impact

Economical serving value and useful core actives support the product. A hidden blend and gummy carbohydrate temper quality-adjusted value.

Report analysis

Goals

Sleep Support
Impact
Highest effect
A+ Goal FitB+ Strength of SupportA- CoverageA- Formula Quality
Melatonin · 6 mgTheanine · 100 mg

Melatonin and a meaningful L-theanine amount address both circadian timing and nervous-system calm. The small proprietary botanical blend may add support, but its individual ingredients and amounts are not disclosed.

The melatonin amount is relatively high and may cause morning grogginess, vivid dreams, or impaired alertness in sensitive users. Avoid driving or other alertness-dependent tasks if drowsiness persists after use.

Study evidence
Melatonin Supportive 181 studies
Theanine Supportive 8 studies
Mood Support
Impact
Moderate effect
C+ Goal FitC Strength of SupportC- CoverageC+ Formula Quality

L-theanine may support calm, while melatonin mainly improves sleep timing rather than daytime mood. The hidden botanical blend is too small and opaque to add dependable mood support.

The melatonin amount is higher than needed by many users and may cause next-day drowsiness or vivid dreams. Combining it with alcohol or other sedatives can increase impairment.

Study evidence
Theanine Supportive 12 studies
Stress Relief
Impact
Moderate effect
C Goal FitD Strength of SupportC- CoverageC- Formula Quality
Theanine · 100 mg

L-theanine at 100 mg provides some direct calming support, but melatonin keeps the gummy centered on sleep timing. Theanine has relevant human stress evidence, while melatonin is not a primary stress-relief active.

A 25 mg proprietary botanical blend is too small and opaque to add verifiable depth. Melatonin at 6 mg may cause morning grogginess or vivid dreams, especially in sensitive users.

Study evidence
Melatonin Supportive 21 studies
Theanine Supportive 16 studies

Ingredients

IngredientAmount per serving
Calories
15 Calorie(s)
Total Carbohydrate
4 Gram(s)
L-Theanine
100 mg
Melatonin
6 mg
Proprietary Botanical Blend
25 mg
Adults 18–50 Dairy Free Vegetarian
Report overview
Theanine · 100 mg OverallScore88
B+ Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyB+ Value

The clearly disclosed L-theanine dose falls in the preferred range for calm and focus support. Its generic source lacks the purity assurance of a studied branded form. The added melatonin may increase next-day drowsiness in sensitive users, especially when taken late at night.

Melatonin · 6 mg OverallScore46
F Active Ingredient Quality & BioavailabilityC Dose, Safety & Label TransparencyC Value

The melatonin amount is moderately high for sleep onset and is paired with L-theanine plus a small proprietary botanical blend. Two gummies are needed for the full serving, while no sustained-release technology or independent purity seal is disclosed. The 6 mg melatonin dose may cause morning grogginess in sensitive users, so they should avoid driving or other alertness-dependent tasks if drowsy.

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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. 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
  4. 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
  5. Theanine maintains sleep quality in healthy young women by suppressing the increase in caffeine-induced wakefulness after sleep onset.
    Baba Y; Takihara T; Okamura N · Food & function · 2023
    Clinical trialSleep Support forTheanine
  6. 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
  7. No effect of melatonin to modify surgical-stress response after major vascular surgery: a randomised placebo-controlled trial.
    Kücükakin B; Wilhelmsen M; Lykkesfeldt J; Reiter RJ; Rosenberg J; Gögenur I · European journal of vascular and endovascular surgery : the official journal of the European Society for Vascular Surgery · 2010
    Randomized trial50 participantsStress Relief forMelatonin
  8. Anti-Stress, Behavioural and Magnetoencephalography Effects of an L-Theanine-Based Nutrient Drink: A Randomised, Double-Blind, Placebo-Controlled, Crossover Trial.
    White DJ; de Klerk S; Woods W; Gondalia S; Noonan C; Scholey AB · Nutrients · 2016
    Randomized trial34 participantsStress Relief forTheanine
  9. Effect of Combined Ingestion of L-Theanine and L-Arginine for Short-Term Psychological Stress in Young Adults: A Randomized Placebo-Controlled Study.
    Furushima D; Sugiyama I; Nomura Y; Unno K; Yamada H · Journal of nutritional science and vitaminology · 2023
    Randomized trial120 participantsStress Relief forTheanine
  10. Promising, but Not Completely Conclusive-The Effect of l-Theanine on Cognitive Performance Based on the Systematic Review and Meta-Analysis of Randomized Placebo-Controlled Clinical Trials.
    Mátyus RO; Szikora Z; Bodó D; Vargáné Szabó B; Csupor É; Csupor D; Tóth B · Journal of clinical medicine · 2025
    Meta-analysis148 participants5 studies pooledMental Focus forTheanine
  11. Effects of Tea (Camellia sinensis) or its Bioactive Compounds l-Theanine or l-Theanine plus Caffeine on Cognition, Sleep, and Mood in Healthy Participants: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.
    Payne ER; Aceves-Martins M; Dubost J; Greyling A; de Roos B · Nutrition reviews · 2025
    Meta-analysis50 studies pooledMental Focus forTheanine
  12. l-theanine adjunct to sertraline for major depressive disorder: A randomized, double-blind, placebo-controlled clinical trial.
    Shamabadi A; Kafi F; Arab Bafrani M; Asadigandomani H; A Basti F; Akhondzadeh S · Journal of affective disorders · 2023
    Randomized trial60 participantsMood Support forTheanine
  13. L-theanine relieves positive, activation, and anxiety symptoms in patients with schizophrenia and schizoaffective disorder: an 8-week, randomized, double-blind, placebo-controlled, 2-center study.
    Ritsner MS; Miodownik C; Ratner Y; Shleifer T; Mar M; Pintov L; Lerner V · The Journal of clinical psychiatry · 2011
    Randomized trial60 participantsMood Support Stress Relief forTheanine
  14. The Effects of Green Tea Amino Acid L-Theanine Consumption on the Ability to Manage Stress and Anxiety Levels: a Systematic Review.
    Williams JL; Everett JM; D'Cunha NM; Sergi D; Georgousopoulou EN; Keegan RJ; McKune AJ; Mellor DD; Anstice N; Naumovski N · Plant foods for human nutrition (Dordrecht, Netherlands) · 2020
    Systematic review9 studies pooledMood Support forTheanine
  15. Comparison of the effects of two amino acids, Gamma-aminobutyric acid (GABA) and L-theanine, on sedation, anxiety, and cognition in preoperative surgical patients - A randomized controlled study.
    Deshpande SS; Kurdi M; Baiju A; Athira AS; Sarasamma AG; Gangadharan AK · Journal of anaesthesiology, clinical pharmacology · 2025
    Randomized trial168 participantsMood Support Stress Relief forTheanine
  16. Anti-stress effect of theanine on students during pharmacy practice: positive correlation among salivary α-amylase activity, trait anxiety and subjective stress.
    Unno K; Tanida N; Ishii N; Yamamoto H; Iguchi K; Hoshino M; Takeda A; Ozawa H; Ohkubo T; Juneja LR; Yamada H · Pharmacology, biochemistry, and behavior · 2014
    Randomized trial20 participantsMood Support forTheanine
  17. 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
  18. 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
  19. 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
  20. 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
  21. 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
  22. 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
  23. 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
  24. 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
  25. 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
  26. 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
  27. 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
  28. 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
  29. Safety and Efficacy of AlphaWave® L-Theanine Supplementation for 28 Days in Healthy Adults with Moderate Stress: A Randomized, Double-Blind, Placebo-Controlled Trial.
    Moulin M; Crowley DC; Xiong L; Guthrie N; Lewis ED · Neurology and therapy · 2024
    Randomized trial30 participantsStress Relief forTheanine
  30. A Randomized, Triple-Blind, Placebo-Controlled, Crossover Study to Investigate the Efficacy of a Single Dose of AlphaWave® L-Theanine on Stress in a Healthy Adult Population.
    Evans M; McDonald AC; Xiong L; Crowley DC; Guthrie N · Neurology and therapy · 2021
    Randomized trialStress Relief forTheanine