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Genius Burn

The Genius Brand
4.4
★ ★ ★ ★ ★
(108 ratings)
Theanine 100 mg
Ashwagandha 300 mg
Product Image
Score57

Useful branded focus and weight-management ingredients are eclipsed by an apparently extreme huperzine A dose that must be verified.

How scoring works
Quantity:60 Capsule(s) • (30 servings)
Goals:
Cognitive Support
Energy
Mental Focus
Stress Relief
Productivity Boost
Mood Support
Brain Health
Weight Loss

Score 57

Useful branded focus and weight-management ingredients are eclipsed by an apparently extreme huperzine A dose that must be verified.

How scoring works
$49.99($1.66 per serving)
iHerb
$ 49.99
iHerb
$ 49.99
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Analysis

KSM-66 ashwagandha at 300 mg, citicoline at 200 mg, and theacrine at 100 mg provide the strongest energy-and-focus structure. One hundred milligrams of theanine may temper stimulation.

Capsimax and gymnema support the weight-management angle, while a 50 mg branded system lacks enough detail to assess. The supplied label lists huperzine A at 5 mg, an amount that requires immediate verification before use.

The formula has plausible focus and energy utility, but the huperzine entry creates a major safety concern. It should not be used until the actual huperzine dose is confirmed from a reliable label.

Who is it for
  • No one until the huperzine label amount is verified
  • Adults seeking stimulant-adjacent focus support after verification
  • Users who tolerate theacrine and capsicum
Best for
  • Label verification before purchase
  • Focus and energy support only after safety confirmation
  • Users seeking KSM-66 with citicoline

Pros

  • Uses KSM-66 ashwagandha
  • Provides 200 mg citicoline
  • Includes 100 mg theacrine and theanine
  • Uses branded capsicum and gymnema ingredients

Cons

  • Huperzine A amount appears dangerously high
  • One branded system is poorly described
  • Only 30 servings
  • Complex formula has a high interaction burden

Warnings

  • Do not use until the listed 5 mg huperzine A amount is verified
  • Theacrine may cause stimulation or sleep disruption
  • Capsicum and gymnema may cause digestive effects or alter glucose management

Nutrient quality

58 Moderate impact

Standardized ashwagandha and branded extracts offer some form quality. An implausibly high huperzine A listing and incomplete branded-blend detail sharply reduce safety confidence.

.

Ingredient transparency

65 Moderate impact

Most named actives have amounts, but a branded system is not clearly characterized. The huperzine A listing, incomplete directions, and missing inactive ingredients create major uncertainty.

.

Customer satisfaction

65 High impact

The supplied average rating is generally favorable. A substantial rating base makes the average reasonably dependable, but no detailed experience evidence was supplied.

.

Value for money

39 Lower impact

Serving economics are weak. Formula weaknesses do not justify the asking price well.

.
Report analysis

Goals

Cognitive Support
Cognitive Support
Impact
Highest effect
A- Goal FitA- Strength of SupportB+ CoverageB Formula Quality
Ashwagandha · 300 mgTheanine · 100 mg

Citicoline, L-theanine, KSM-66 ashwagandha, theacrine, and huperzia cover attention, stress resilience, and acetylcholine support. The core ingredients reach useful amounts and include a well-characterized ashwagandha extract.

Thermogenic and weight-management ingredients add some non-cognitive material without overwhelming the stack. Theacrine may still cause stimulation or sleep disruption in sensitive users even without listed caffeine.

Study evidence
Ashwagandha Supportive 17 studies
Theanine Supportive 25 studies
Energy
Stress Resilience
Energy
Impact
Highest effect
B+ Goal FitB+ Strength of SupportA- CoverageB Formula Quality

Theacrine may support acute alertness, while citicoline and L-theanine add focused mental energy and KSM-66 ashwagandha supports stress resilience. The combination covers two useful energy pathways with mostly meaningful, clearly stated amounts.

Several branded or recognizable forms improve confidence, although small proprietary systems and unclear active yields reduce full transparency. The stated Huperzia serrata form does not clarify the actual huperzine A content, and stimulant-sensitive users may find theacrine too activating.

Study evidence
Ashwagandha Supportive 9 studies
Theanine Not classified

No linked studies yet.

Mental Focus
Mental Focus
Impact
Highest effect
A- Goal FitB Strength of SupportA- CoverageB+ Formula Quality
Theanine · 100 mg

Citicoline and theacrine create direct support for attention, mental energy, and cholinergic signaling, with L-theanine helping smooth the stimulating profile. KSM-66 ashwagandha adds meaningful stress support and makes the formula more balanced than a simple thermogenic stimulant.

Most major ingredients are individually disclosed at useful amounts, but a proprietary system and ambiguous huperzine A labeling weaken dose confidence. Weight-management extras add some clutter, yet the core cognitive stack remains coherent and goal focused.

Study evidence
Ashwagandha Supportive 12 studies
Theanine Supportive 19 studies
Stress Relief
Stress Relief
Impact
Highest effect
A- Goal FitA Strength of SupportB+ CoverageD+ Formula Quality
Ashwagandha · 300 mgTheanine · 100 mg

KSM-66 ashwagandha and L-theanine create strong stress-relevant support for resilience and calm. Thermogenic and stimulant-like ingredients shift the product toward energy and weight management.

Both key stress actives reach commonly useful amounts and are clearly disclosed. Theacrine and capsicum may feel activating, so the formula may not suit users whose priority is reducing physical arousal.

Study evidence
Ashwagandha Supportive 47 studies
Theanine Supportive 16 studies
Productivity Boost
Productivity Boost
Impact
Highest effect
B+ Goal FitB+ Strength of SupportA- CoverageC+ Formula Quality
Theanine · 100 mg

KSM-66 ashwagandha, citicoline, theacrine, L-theanine, and huperzia create strong support for stress resilience, focus, and sustained energy. Thermogenic ingredients shift part of the formula toward weight management.

Ashwagandha and L-theanine reach useful amounts, while citicoline is close to common practical use. Theacrine may feel stimulating, and sensitive users could experience sleep disruption or increased arousal.

Study evidence
Ashwagandha Supportive 6 studies
Theanine Supportive 5 studies
Mood Support
Mood Support
Impact
High effect
B Goal FitA Strength of SupportB CoverageD Formula Quality
Ashwagandha · 300 mg

KSM-66 ashwagandha and L-theanine directly support stress regulation and calm attention. KSM-66 at 300 mg and L-theanine at 100 mg reach well-aligned supplemental amounts.

The formula combines stress adaptation and calm focus with additional stimulant and metabolic pathways. Theacrine and thermogenic actives may counter the calming intent of ashwagandha and theanine in stimulant-sensitive users.

Study evidence
Ashwagandha Supportive 29 studies
Theanine Supportive 12 studies

Ingredients

IngredientAmount per serving
KSM-66 (Ashwagandha Root Extract)
 300 mg
Citicoline
200 mg
Theacrine
100 mg
Genius TruLean System-1
50 mg
Capsimax (Capsicum Fruit Extract)
 25 mg
GS4 Plus (Gymnema sylvestre)
 100 mg
L-Theanine
100 mg
AstraGin (Astragalus membranaceous Root Extract, Panax notoginseng Root Extract)
 25 mg
Huperzia serrata (Huperzine A)
 5 mg
Adults 18–50
Report overview
Theanine · 100 mg OverallScore82
B+ Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyD+ Value
+1

Clearly named L-theanine is provided at a fully disclosed amount in the optimal range. No branded theanine source or specific purity standard appears on the label. The unit cost is high, though a meaningful dose of KSM-66 ashwagandha supports a partial value adjustment.

View ingredientView products
Ashwagandha (Ashwagandha Root Extract) · 300 mg OverallScore78
A- Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyF Value
+3

A clinically studied KSM-66 root extract is provided at a clinically aligned dose. The label clearly states the amount, though it includes no dedicated absorption aid. The high cost and thermogenic focus make it a poor value for shoppers primarily seeking ashwagandha.

View ingredientView products
Loading alternative details
87 Performance

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 Genius Burn, the focused and better-characterized formula is easier to assess for stress or sleep support and avoids its major label-safety ambiguity.
86 Performance

Ashwagandha Sensoril

Natural Factors Stress-Relax
A focused Sensoril ashwagandha serving provides strong form assurance in a simple formula. Compared with Genius Burn, the focused and better-characterized formula is easier to assess for stress or sleep support and avoids its major label-safety ambiguity.
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 Genius Burn, the focused and better-characterized formula is easier to assess for stress or sleep support and avoids its major label-safety ambiguity.
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 Genius Burn, it is far less costly and avoids the implausible huperzine listing and unexplained branded system, although it offers less stimulant-based weight-management breadth.
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 Genius Burn, it is far less costly and avoids the implausible huperzine listing and unexplained branded system, although it offers less stimulant-based weight-management breadth.
85 Budget

Double Strength L-Theanine 200 mg

NOW
A meaningful L-theanine amount supports calm focus and relaxation in a simple capsule with a small inositol addition. Compared with Genius Burn, it is far less costly and avoids the implausible huperzine listing and unexplained branded system, although it offers less stimulant-based weight-management breadth.
87 Value

L-Theanine 100 mg

California Gold Nutrition
AlphaWave L-theanine provides a clearly identified, focused option for calm attention and relaxation. Compared with Genius Burn, the clearly identified active provides a much more economical route to calm focus or stress support, but it is not a thermogenic substitute.
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 Genius Burn, the clearly identified active provides a much more economical route to calm focus or stress support, but it is not a thermogenic substitute.
85 Value

L-Theanine 150 mg

Solgar
A useful Suntheanine amount combines strong ingredient identity with a streamlined calm-focus formula. Compared with Genius Burn, the clearly identified active provides a much more economical route to calm focus or stress support, but it is not a thermogenic substitute.
Report alternatives

Sources

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

  1. 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
  2. An Examination into the Anti-stress and Anti-fatigue Effects of an Ashwagandha Extract (Ashwa.30™) in Stressed Adults: A Randomised, Double-Blind, Placebo-controlled Trial.
    Lopresti AL; Smith SJ; Bethapudi B; R AA; Mundkinajeddu D; D'Souza P; Lakshmikanthan S · Advances in therapy · 2026
    Randomized trial60 participantsEnergy forAshwagandha
  3. A Randomized, Double-Blind, Placebo-Controlled, Crossover Study Examining the Hormonal and Vitality Effects of Ashwagandha ( Withania somnifera) in Aging, Overweight Males.
    Lopresti AL; Drummond PD; Smith SJ · American journal of men's health · 2020
    Randomized trial57 participantsEnergy forAshwagandha
  4. Efficacy and safety of Ashwagandha (Withania somnifera) root extract on stress and weight management in adults: a prospective, randomized, double-blind, placebo-controlled study.
    Pakhale K; Pakhale R; Srivathsan M; Langade J; Langade D · Journal of medicine and life · 2026
    Randomized trial100 participantsWeight Loss forAshwagandha
  5. Impact of ashwagandha (Withania somnifera L.) supplementation on serum lipid concentrations and anthropometric parameters in adults with overweight and obesity: a double-blind, placebo-controlled pilot study.
    Ballesteros-Torres JM; Vázquez-Aguilar A; Luzardo-Ocampo I; Escalante-Aburto A; Caballero-Prado CJ · Nutrition & metabolism · 2025
    Randomized trial43 participantsWeight Loss forAshwagandha
  6. 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 pooledMental Focus Fitness Testosterone 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 participantsMental Focus Brain Health Cognitive Support Productivity Boost forAshwagandha
  8. 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
  9. 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 Mental Focus forAshwagandha
  10. 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 Mental Focus forAshwagandha
  11. 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 participantsBrain Health Sleep Support Stress Relief forAshwagandha
  12. 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
  13. 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
  14. 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 Mental Focus forTheanine
  15. 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
  16. 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 Mental Focus Productivity Boost forTheanine
  17. 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 Mental Focus forAshwagandha
  18. 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 Mental Focus forAshwagandha
  19. 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
  20. 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 Mental Focus forTheanine
  21. 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
  22. Enhancing healthspan with Ashwagandha (Withania somnifera): a comprehensive review of its multifaceted geroprotective benefits.
    Vittal M; Vinciguerra M · Biogerontology · 2025
    Narrative reviewEnergy forAshwagandha
  23. 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
  24. 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
  25. 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
  26. 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
  27. 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
  28. Efficacy and Safety of Ashwagandha (Withania somnifera (L.) Dunal) Root Extract in Improving Memory and Cognitive Functions.
    Choudhary D; Bhattacharyya S; Bose S · Journal of dietary supplements · 2018
    Randomized trial50 participantsMental Focus forAshwagandha
  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 participantsMental Focus Productivity Boost Stress Relief forTheanine
  30. Effect of L-theanine on selective attention in a traffic-related reaction task in sleep-deprived young adults: a double-blind placebo-controlled, crossover study.
    Karunaratne UW; Dassanayake TL · Nutritional neuroscience · 2025
    Randomized trial24 participantsMental Focus forTheanine
  31. 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
  32. 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
  33. 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 participantsMood Support Stress Relief forAshwagandha
  34. 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
  35. 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
  36. 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
  37. 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
  38. 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
  39. 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
  40. 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
  41. 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
  42. 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
  43. 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
  44. 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
  45. 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
  46. 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
  47. 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
  48. 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
  49. 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
  50. 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
  51. 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
  52. 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
  53. 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
  54. 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
  55. 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
  56. 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
  57. 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
  58. Examining the Effects of Herbs on Testosterone Concentrations in Men: A Systematic Review.
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  59. Do "testosterone boosters" really increase serum total testosterone? A systematic review.
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    Systematic review3 studies pooledTestosterone Support forAshwagandha
  60. Safety and Tolerability of Withania somnifera Root Extract in Healthy Male Participants: A Pilot Randomized, Double-Blind, Placebo-Controlled Clinical Trial.
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