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Stress Guard

Oregon's Wild Harvest
4.8
★ ★ ★ ★ ★
(28 ratings)
Theanine 50 mg
Ashwagandha 300 mg
Product Image
Score70

Transparent stress botanicals offer coherent support, but lightly dosed theanine and substantial licorice limit suitability.

How scoring works
Quantity:90 Capsule(s) • (30 servings)
Goals:
Stress Relief

Score 70

Transparent stress botanicals offer coherent support, but lightly dosed theanine and substantial licorice limit suitability.

How scoring works
$27.96($0.93 per serving)
Pure Formulas
$ 27.96
iHerb
$ 27.96
Vitacost
$ 27.96
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Analysis

Holy basil, licorice, ashwagandha, and skullcap are each present at 300 mg. Clear whole-botanical amounts make the core easier to understand than a proprietary blend.

L-theanine is only 50 mg, and the listed B vitamins are mostly very small. No active-marker standardization is provided for the herbs.

The formula fits broad stress support more than strong focus or sleep use. Licorice materially narrows suitability, especially for people prone to high blood pressure or low potassium.

Who is it for
  • Adults seeking traditional stress botanicals
  • Users without blood-pressure or potassium concerns
  • People comfortable with a three-capsule serving
Best for
  • Short-term stress routines
  • Users wanting holy basil with ashwagandha
  • Botanical support rather than high-dose theanine

Pros

  • Discloses individual botanical amounts
  • Provides 300 mg ashwagandha
  • Includes holy basil and skullcap
  • No proprietary active blend

Cons

  • Contains substantial licorice
  • Only 50 mg theanine
  • B vitamins are lightly dosed
  • Extract standardization is absent

Warnings

  • Licorice may raise blood pressure or lower potassium with ongoing use
  • People using diuretics, blood-pressure medicines, or heart medicines should review licorice exposure
  • Skullcap and theanine may add drowsiness in sensitive users

Nutrient quality

67 High impact

Substantial calming botanicals support the intended stress use. Missing standardization and a meaningful licorice-related safety concern limit quality.

.

Ingredient transparency

74 High impact

Every listed active has an individual amount without a hidden blend. Chemical forms, complete directions, and inactive ingredients remain unclear.

.

Customer satisfaction

66 High impact

The supplied average rating is very strong. The rating base is modest and limits confidence in the average, but no detailed experience evidence was supplied.

.

Value for money

70 High impact

Serving economics are reasonable. Formula limitations keep practical value moderate.

.
Report analysis

Goals

Stress Relief
Stress Relief
Impact
High effect
B Goal FitC Strength of SupportB CoverageC+ Formula Quality
Ashwagandha · 300 mgFolate · 167 mcg DFEVitamin B6 · 550 mcgTheanine · 50 mg

Ashwagandha, holy basil, skullcap, and theanine create direct adaptogen and calming pathways. The formula is more goal-specific than a general multivitamin.

Ashwagandha lacks plant-part and withanolide standardization, while theanine and B vitamins are modest. Licorice can raise blood pressure and lower potassium, making the product unsuitable for some users with hypertension, kidney disease, or relevant medicines.

Study evidence
Ashwagandha Supportive 47 studies
Theanine Supportive 16 studies
Brain Health
Brain Health
Impact
Moderate effect
B- Goal FitD Strength of SupportC+ CoverageB- Formula Quality
Folate · 167 mcg DFEVitamin B6 · 550 mcgThiamin · 550 mcgAshwagandha · 300 mg

Ashwagandha, holy basil, and L-theanine create a stress-resilience formula with indirect cognitive relevance. The blend may help mental fatigue, but the main actives are modest or lack standardization.

Multiple calming botanicals broaden stress-pathway coverage without providing strong evidence for memory or neuronal structure. Licorice can raise blood pressure or lower potassium in susceptible users, which limits routine use for those conditions.

Study evidence
Ashwagandha Supportive 12 studies
Theanine Supportive 17 studies
Mood Support
Mood Support
Impact
Moderate effect
C+ Goal FitD+ Strength of SupportB- CoverageB- Formula Quality
Folate · 167 mcg DFEVitamin B6 · 550 mcgAshwagandha · 300 mg

Ashwagandha, holy basil, skullcap, and L-theanine provide broad stress-and-calm support. Unstandardized herbs and low theanine reduce confidence in the delivered strength.

The blend is mostly coherent, but licorice creates an important safety trade-off. Licorice at 300 mg may raise blood pressure or lower potassium, making the formula unsuitable for some people with hypertension or potassium-related risks.

Study evidence
Ashwagandha Supportive 29 studies
Theanine Supportive 12 studies
Productivity Boost
Productivity Boost
Impact
Moderate effect
C Goal FitD+ Strength of SupportC CoverageB- Formula Quality
Vitamin B6 · 550 mcgTheanine · 50 mg

Ashwagandha, holy basil, and L-theanine target stress-related distraction and fatigue. The ingredients have plausible human support, but missing extract standardization weakens confidence in this specific formula.

The botanical amounts are moderate, while L-theanine is limited to mild support. Stress adaptation and calm attention are covered without acute alertness or neurotransmitter precursors.

Study evidence
Ashwagandha Supportive 6 studies
Theanine Supportive 5 studies
Sleep Support
Sleep Support
Impact
Moderate effect
C- Goal FitC- Strength of SupportC CoverageD+ Formula Quality
Theanine · 50 mg

Ashwagandha, skullcap, holy basil, and theanine support stress reduction that may indirectly help sleep. The formula is presented as daytime stress support rather than a dedicated sleep aid.

Theanine is low, and the herbs are not standardized to key actives. Licorice can raise blood pressure or lower potassium in susceptible users, making routine bedtime use less straightforward.

Study evidence
Ashwagandha Supportive 18 studies
Theanine Supportive 8 studies
Cognitive Support
Cognitive Support
Impact
Moderate effect
C Goal FitD Strength of SupportC- CoverageC+ Formula Quality
Thiamin · 550 mcgVitamin B6 · 550 mcgFolate · 167 mcg DFEAshwagandha · 300 mgTheanine · 50 mg

Ashwagandha, holy basil, skullcap, and L-theanine may support cognition indirectly by reducing stress and mental tension. The botanical ingredients are not standardized, and the theanine amount provides only mild support.

The blend covers several calming pathways but does little for memory formation or cerebral circulation. Licorice at 300 mg may raise blood pressure or lower potassium in susceptible users.

Study evidence
Ashwagandha Supportive 17 studies
Theanine Supportive 25 studies

Ingredients

IngredientAmount per serving
Thiamine (Vitamin B1)
 550 mcg
Riboflavin (Vitamin B2)
 530 mcg
Niacin
900 mcg
Vitamin B6
550 mcg
Folate
167 mcg DFE
Pantothenic Acid
1 mg
organic Holy Basil
300 mg
organic Licorice
300 mg
organic Ashwagandha
300 mg
organic Skullcap
300 mg
L-Theanine
50 mg
Gluten Free Adults 18–50 Dairy Free Women
Report overview
Theanine · 50 mg OverallScore70
B+ Active Ingredient Quality & BioavailabilityA- Dose, Safety & Label TransparencyF Value

The explicit L-theanine form is transparent but provides only a mild-support amount. The generic ingredient includes no branded sourcing or stated purity verification. Its low amount leads to weak cost efficiency, and the unstandardized botanicals do not qualify for an adjustment.

View ingredientView products
Ashwagandha · 300 mg OverallScore38
F Active Ingredient Quality & BioavailabilityC+ Dose, Safety & Label TransparencyF Value
+1

The label gives a clear ashwagandha amount but does not identify the plant part, extract ratio, or withanolide standardization. Its dose is modest if the ingredient is untreated herb, and no absorption enhancer is present. Licorice at 300 mg also makes the blend less suitable for people with hypertension or low potassium.

View ingredientView products
Loading alternative details
86 Performance

Ashwagandha Sensoril

Natural Factors Stress-Relax
A focused Sensoril ashwagandha serving provides strong form assurance in a simple formula. Compared with Stress Guard, the branded active or concise sleep blend improves form assurance and goal specificity while avoiding the original formula’s unstandardized licorice-heavy profile.
85 Performance

L-Theanine 150 mg

Solgar
A useful Suntheanine amount combines strong ingredient identity with a streamlined calm-focus formula. Compared with Stress Guard, the branded active or concise sleep blend improves form assurance and goal specificity while avoiding the original formula’s unstandardized licorice-heavy profile.
82 Performance

Sleep Well Berry Flavored

Nature's Way
Sensoril ashwagandha, magnesium citrate, and melatonin form a concise, well-disclosed sleep-focused blend. Compared with Stress Guard, the branded active or concise sleep blend improves form assurance and goal specificity while avoiding the original formula’s unstandardized licorice-heavy profile.
86 Budget

Anxiety & Stress Relief

Nature's Bounty
Meaningful amounts of ashwagandha and L-theanine create a concise stress-support pair without unrelated active ingredients. Compared with Stress Guard, it provides a better-characterized ashwagandha or theanine core at a lower serving cost and avoids licorice-related blood-pressure concerns.
87 Budget

Ashwagandha KSM-66 600 mg

NutraBio
A full-strength KSM-66 root extract provides strong form identity and broad stress and performance relevance. Compared with Stress Guard, it provides a better-characterized ashwagandha or theanine core at a lower serving cost and avoids licorice-related blood-pressure concerns.
87 Budget

L-Theanine 200 mg Double Strength

Swanson
Branded Suntheanine is supplied at a substantial amount for calm attention and relaxation without unrelated actives. Compared with Stress Guard, it provides a better-characterized ashwagandha or theanine core at a lower serving cost and avoids licorice-related blood-pressure concerns.
87 Value

Standardized Extract Ashwagandha 450 mg

NOW
A practical standardized ashwagandha extract offers broad stress and resilience support in a focused formula. Compared with Stress Guard, the focused active offers clearer potency and stronger serving value, though it provides less botanical breadth.
85 Value

L-Theanine 200 mg

California Gold Nutrition
A clearly disclosed L-theanine amount is well aligned with common calming and focus use. Compared with Stress Guard, the focused active offers clearer potency and stronger serving value, though it provides less botanical breadth.
87 Value

Ultimate Ashwagandha 250 mg KSM-66

Swanson
A moderate KSM-66 root extract offers a clearly identified ashwagandha form that may suit cautious daily use. Compared with Stress Guard, the focused active offers clearer potency and stronger serving value, though it provides less botanical breadth.
Report alternatives

Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. A prospective, randomized double-blind, placebo-controlled study of safety and efficacy of a high-concentration full-spectrum extract of ashwagandha root in reducing stress and anxiety in adults.
    Chandrasekhar K; Kapoor J; Anishetty S · Indian journal of psychological medicine · 2013
    Randomized trial64 participantsStress Relief Mood Support forAshwagandha
  2. Efficacy and Safety of Ashwagandha Root Extract on Cognitive Functions in Healthy, Stressed Adults: A Randomized, Double-Blind, Placebo-Controlled Study.
    Gopukumar K; Thanawala S; Somepalli V; Rao TSS; Thamatam VB; Chauhan S · Evidence-based complementary and alternative medicine : eCAM · 2022
    Randomized trial130 participantsStress Relief Brain Health Sleep Support forAshwagandha
  3. Adaptogenic and Anxiolytic Effects of Ashwagandha Root Extract in Healthy Adults: A Double-blind, Randomized, Placebo-controlled Clinical Study.
    Salve J; Pate S; Debnath K; Langade D · Cureus · 2020
    Randomized trial60 participantsStress Relief forAshwagandha
  4. Dual impact of Ashwagandha: Significant cortisol reduction but no effects on perceived stress - A systematic review and meta-analysis.
    Albalawi AA · Nutrition and health · 2025
    Meta-analysis488 participants13 studies pooledStress Relief forAshwagandha
  5. Acute and Repeated Ashwagandha Supplementation Improves Markers of Cognitive Function and Mood.
    Leonard M; Dickerson B; Estes L; Gonzalez DE; Jenkins V; Johnson S; Xing D; Yoo C; Ko J; Purpura M; Jäger R; Faries M; Kephart W; Sowinski R; Rasmussen CJ; Kreider RB · Nutrients · 2024
    Randomized trial59 participantsBrain Health Cognitive Support Energy forAshwagandha
  6. Effect of ashwagandha (Withania somnifera) extract with Sominone (Somin-On™) to improve memory in adults with mild cognitive impairment: A randomized, double-blind, placebo-controlled study.
    Rai HP; Mishra DN · Journal of psychopharmacology (Oxford, England) · 2025
    Randomized trial40 participantsBrain Health Cognitive Support forAshwagandha
  7. Efficacy of Withania somnifera supplementation on adult's cognition and mood.
    Remenapp A; Coyle K; Orange T; Lynch T; Hooper D; Hooper S; Conway K; Hausenblas HA · Journal of Ayurveda and integrative medicine · 2022
    Randomized trial60 participantsBrain Health Cognitive Support Productivity Boost forAshwagandha
  8. A clinical assessment of the therapeutic effects of Ashwagandha root extract on cognitive performance, sleep, and fatigue in children aged 6-12 years.
    Saxena A; Lopresti A; Sharif M; Elon N; Suri R; Langade DK · Frontiers in nutrition · 2026
    Randomized trial85 participantsBrain Health forAshwagandha
  9. 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 participantsBrain Health Cognitive Support Sleep Support forTheanine
  10. 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 trialBrain Health Stress Relief 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 pooledBrain Health Cognitive Support forTheanine
  12. Assessing the effects of caffeine and theanine on the maintenance of vigilance during a sustained attention task.
    Foxe JJ; Morie KP; Laud PJ; Rowson MJ; de Bruin EA; Kelly SP · Neuropharmacology · 2012
    Randomized trial27 participantsBrain Health Cognitive Support forTheanine
  13. Effects of l-Theanine on Cognitive Function in Middle-Aged and Older Subjects: A Randomized Placebo-Controlled Study.
    Baba Y; Inagaki S; Nakagawa S; Kaneko T; Kobayashi M; Takihara T · Journal of medicinal food · 2021
    Randomized trialBrain Health Productivity Boost forTheanine
  14. A standardized Ashwagandha root extract alleviates stress, anxiety, and improves quality of life in healthy adults by modulating stress hormones: Results from a randomized, double-blind, placebo-controlled study.
    Majeed M; Nagabhushanam K; Mundkur L · Medicine · 2023
    Randomized trial54 participantsCognitive Support forAshwagandha
  15. Efficacy and safety of ashwagandha root extract in children and adolescents with mild attention-deficit/hyperactivity disorder: a randomized, double-blind, placebo-controlled trial.
    Naik S; Muralidhar G; Rao BS; Agarwal S; Jain M · Journal of medicine and life · 2026
    Randomized trial58 participantsCognitive Support forAshwagandha
  16. Dose-response effect of L-theanine on psychomotor speed, sustained attention, and inhibitory control: a double-blind, placebo-controlled, crossover study.
    Dassanayake TL; Wijesundara D; Kahathuduwa CN; Weerasinghe VS · Nutritional neuroscience · 2023
    Randomized trial32 participantsCognitive Support forTheanine
  17. Acute effects of theanine, caffeine and theanine-caffeine combination on attention.
    Kahathuduwa CN; Dassanayake TL; Amarakoon AMT; Weerasinghe VS · Nutritional neuroscience · 2018
    Clinical trial20 participantsCognitive Support forTheanine
  18. Effects of multi-herb and ashwagandha root formulas on stress modulation: a randomized, double-blind, placebo-controlled clinical study.
    McKinney E; Stewart J; Kewalramani R; Singh S · Trials · 2026
    Randomized trial186 participantsEnergy Mood Support forAshwagandha
  19. Efficacy and Safety of Low-Dose Ashwagandha Supplementation on Exercise Endurance: A Randomized, Placebo-Controlled, Double-Blind, Clinical Trial.
    Prajapati H; Satia M; Shah D; Basera I; Shah T · Phytotherapy research : PTR · 2026
    Randomized trialEnergy forAshwagandha
  20. Enhancing healthspan with Ashwagandha (Withania somnifera): a comprehensive review of its multifaceted geroprotective benefits.
    Vittal M; Vinciguerra M · Biogerontology · 2025
    Narrative reviewEnergy forAshwagandha
  21. Safety and Efficacy of Ashwagandha Root Extract on Cognition, Energy and Mood Problems in Adults: Prospective, Randomized, Placebo-Controlled Study.
    Kale S; Lopresti A; Suri R; Garg N; Langade D · Journal of psychoactive drugs · 2026
    Randomized trial120 participantsEnergy Productivity Boost forAshwagandha
  22. Effects of an Aqueous Extract of Withania somnifera on Strength Training Adaptations and Recovery: The STAR Trial.
    Ziegenfuss TN; Kedia AW; Sandrock JE; Raub BJ; Kerksick CM; Lopez HL · Nutrients · 2019
    Randomized trial38 participantsFitness forAshwagandha
  23. Efficacy of Ashwagandha (Withania somnifera [L.] Dunal) in improving cardiorespiratory endurance in healthy athletic adults.
    Choudhary B; Shetty A; Langade DG · Ayu · 2016
    Randomized trial50 participantsFitness forAshwagandha
  24. Effects of Ashwagandha ( Withania somnifera) standardized root extract on physical endurance and VO 2max in healthy adults performing resistance training: An eight-week, prospective, randomized, double-blind, placebo-controlled study.
    Verma N; Gupta SK; Patil S; Tiwari S; Mishra AK · F1000Research · 2024
    Randomized trial80 participantsFitness forAshwagandha
  25. Effects of Withania somnifera (L.) Dunal (Ashwagandha) on cognitive and physical function in adults: a systematic review and meta-analysis.
    Zhu X; Zeng Q; Lei Y; Xu D · Frontiers in pharmacology · 2026
    Meta-analysis1,249 participants20 studies pooledFitness Testosterone Support forAshwagandha
  26. Effects of eight-week supplementation of Ashwagandha on cardiorespiratory endurance in elite Indian cyclists.
    Shenoy S; Chaskar U; Sandhu JS; Paadhi MM · Journal of Ayurveda and integrative medicine · 2013
    Randomized trial40 participantsFitness forAshwagandha
  27. A proprietary herbal extract of ashwagandha root for stress and anxiety in healthy adults: a randomized, double-blind, three-arm, placebo-controlled efficacy and safety study.
    West RE; Biswas A; Rao R; Tayade H; Ademola J · Journal of medicine and life · 2026
    Randomized trial141 participantsMood Support forAshwagandha
  28. Safety and efficacy of Withania somnifera for anxiety and insomnia: Systematic review and meta-analysis.
    Fatima K; Malik J; Muskan F; Raza G; Waseem A; Shahid H; Jaffery SF; Khan U; Zaheer MK; Shaikh Y; Rashid AM · Human psychopharmacology · 2024
    Meta-analysis254 participants5 studies pooledMood Support forAshwagandha
  29. Medicinal herbs for the treatment of anxiety: A systematic review and network meta-analysis.
    Zhang W; Yan Y; Wu Y; Yang H; Zhu P; Yan F; Zhao R; Tian P; Wang T; Fan Q; Su Z · Pharmacological research · 2022
    Meta-analysis29 participants29 studies pooledMood Support forAshwagandha
  30. 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
  31. 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
  32. 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
  33. 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
  34. 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
  35. Effect of Ashwagandha (Withania somnifera) extract on sleep: A systematic review and meta-analysis.
    Cheah KL; Norhayati MN; Husniati Yaacob L; Abdul Rahman R · PloS one · 2021
    Meta-analysis400 participants5 studies pooledProductivity Boost forAshwagandha
  36. Clinical evaluation of the pharmacological impact of ashwagandha root extract on sleep in healthy volunteers and insomnia patients: A double-blind, randomized, parallel-group, placebo-controlled study.
    Langade D; Thakare V; Kanchi S; Kelgane S · Journal of ethnopharmacology · 2021
    Randomized trial80 participantsProductivity Boost Sleep Support forAshwagandha
  37. Effect of standardized aqueous extract of Withania somnifera on tests of cognitive and psychomotor performance in healthy human participants.
    Pingali U; Pilli R; Fatima N · Pharmacognosy research · 2014
    Randomized trial20 participantsProductivity Boost forAshwagandha
  38. Cognitive and affective effects of L-Theanine: a systematic review and meta-analysis of 31 randomized trials.
    Gerolymos C; Saddier E; Boyer L; Fond G · Molecular psychiatry · 2026
    Meta-analysis1,168 participants31 studies pooledProductivity Boost forTheanine
  39. 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 participantsProductivity Boost Stress Relief forTheanine
  40. Effects of L-theanine on cognition, mood and sleep: evidence from human trials.
    Cotter J; Kilpatrick HE · Frontiers in nutrition · 2026
    Narrative reviewProductivity Boost forTheanine
  41. Time for tea: mood, blood pressure and cognitive performance effects of caffeine and theanine administered alone and together.
    Rogers PJ; Smith JE; Heatherley SV; Pleydell-Pearce CW · Psychopharmacology · 2008
    Randomized trial48 participantsProductivity Boost forTheanine
  42. A randomized, double blind, placebo controlled study to evaluate the effects of ashwagandha (Withania somnifera) extract on sleep quality in healthy adults.
    Deshpande A; Irani N; Balkrishnan R; Benny IR · Sleep medicine · 2021
    Randomized trial150 participantsSleep Support forAshwagandha
  43. Efficacy and safety of Ashwagandha root extract sustained-release (AshwaSR) capsules in healthy adult, stressed subjects: A randomized, double-blind, placebo-controlled, parallel-group, 3-arm clinical trial.
    Thanawala S; Shah R; Alluri KV; Bhupathiraju K; Desomayanandanam P; Bhuvenendran A · Medicine · 2026
    Randomized trial135 participantsSleep Support forAshwagandha
  44. Efficacy and Safety of Ashwagandha (Withania somnifera) Root Extract in Insomnia and Anxiety: A Double-blind, Randomized, Placebo-controlled Study.
    Langade D; Kanchi S; Salve J; Debnath K; Ambegaokar D · Cureus · 2020
    Randomized trial60 participantsSleep Support forAshwagandha
  45. 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
  46. 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
  47. 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
  48. 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
  49. An investigation into the stress-relieving and pharmacological actions of an ashwagandha (Withania somnifera) extract: A randomized, double-blind, placebo-controlled study.
    Lopresti AL; Smith SJ; Malvi H; Kodgule R · Medicine · 2019
    Randomized trial60 participantsStress Relief forAshwagandha
  50. Shoden promotes Relief from stress and anxiety: A randomized, double-blind, placebo-controlled study on healthy subjects with high stress levels.
    Mishra DN; Kumar M · Heliyon · 2024
    Randomized trial60 participantsStress Relief forAshwagandha
  51. 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
  52. Effect of standardized root extract of ashwagandha (Withania somnifera) on well-being and sexual performance in adult males: A randomized controlled trial.
    Chauhan S; Srivastava MK; Pathak AK · Health science reports · 2024
    Randomized trial50 participantsTestosterone Support forAshwagandha
  53. Examining the Effects of Herbs on Testosterone Concentrations in Men: A Systematic Review.
    Smith SJ; Lopresti AL; Teo SYM; Fairchild TJ · Advances in nutrition (Bethesda, Md.) · 2021
    Systematic review32 studies pooledTestosterone Support forAshwagandha
  54. Do "testosterone boosters" really increase serum total testosterone? A systematic review.
    Morgado A; Tsampoukas G; Sokolakis I; Schoentgen N; Urkmez A; Sarikaya S · International journal of impotence research · 2024
    Systematic review3 studies pooledTestosterone Support forAshwagandha
  55. Safety and Tolerability of Withania somnifera Root Extract in Healthy Male Participants: A Pilot Randomized, Double-Blind, Placebo-Controlled Clinical Trial.
    Vaidya N; Agarwal R; Kshirsagar P; Ganu G; Nagore D; Mehta A; Vora A; Nair S · Food science & nutrition · 2025
    Randomized trial40 participantsTestosterone Support forAshwagandha