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Genius Consciousness Watermelon

The Genius Brand
4.5
★ ★ ★ ★ ★
(63 ratings)
Tyrosine 500 mg
Caffeine 100 mg
Alpha-GPC 600 mg
Product Image
Score72
A deeply built nootropic with strong carnitine, lion’s mane, Alpha-GPC, and moderate caffeine. An implausible Huperzine-A entry must be resolved before use.
How scoring works
Quantity:2 Ounce(s) • (15 servings)
Goals:
Mental Focus
Energy
Cognitive Support
Productivity Boost
Brain Health
Anti-Aging
Metabolism Boost
Fitness

Score 72

A deeply built nootropic with strong carnitine, lion’s mane, Alpha-GPC, and moderate caffeine. An implausible Huperzine-A entry must be resolved before use.
How scoring works
$0.00($0.00 per serving)
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Analysis

Acetyl-L-carnitine and lion’s mane each reach 1 g, while Alpha-GPC provides 600 mg and tyrosine 500 mg. Phosphatidylserine, coffee-fruit extract, and absorption-support ingredients broaden the cognitive design.

Caffeine is moderate at 100 mg, but 125 mg methyliberine can extend or intensify stimulation. The supplied label lists 10 mg Huperzine-A, an amount that is not credible for the purified active and may instead refer to a source extract.

Do not use the product until the physical label confirms the true huperzine-A amount and units. If corrected, the formula could suit focused cognitive use, but its many long-acting ingredients still call for conservative frequency and careful tolerance assessment.

Who is it for
  • Adults who can verify the physical label before use
  • Experienced nootropic users
  • People seeking broad cognitive support with moderate caffeine
Best for
  • Cognitive-focused supplementation after label verification
  • Mental energy and focus
  • A multi-pathway nootropic formula

Pros

  • Provides 1 g acetyl-L-carnitine
  • Includes 1 g lion’s mane and 600 mg Alpha-GPC
  • Uses several branded cognitive ingredients
  • Caffeine is lower than many pre-workouts

Cons

  • Huperzine-A entry is implausible
  • Methyliberine extends the stimulant profile
  • Complex formula increases interaction potential
  • Lion’s mane active compounds are not standardized

Warnings

  • Do not take it until the stated Huperzine-A amount and units are verified on the physical label
  • Huperzine-A can cause nausea, slow heart rate, vivid dreams, or other cholinergic effects and should not be combined casually with cholinergic medicines
  • Caffeine plus methyliberine may cause jitters or sleep disruption even though caffeine alone is moderate
  • Avoid combining with other stimulant or complex nootropic products

Nutrient quality

79 High impact

Branded Alpha-GPC, phosphatidylserine, acetyl-L-carnitine, tyrosine, and stimulants create deep cognitive support. Caffeine plus methyliberine increases stimulant risk, and the huperzine active yield is unclear.

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Ingredient transparency

88 Highest impact

Individual active weights are clearly disclosed. Some extract percentages, enzyme activity, or non-active label details remain incomplete.

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Customer satisfaction

61 Moderate impact

The supplied rating is favorable, but the feedback base is comparatively small. No complaint-level evidence was supplied to assess recurring issues or purpose-specific experiences.

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Value for money

52 Moderate impact

The serving cost is high relative to the certainty provided by the label. Substantial ingredients help, but disclosure gaps weaken category competitiveness.

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Report analysis

Goals

Mental Focus
Mental Focus
Impact
Highest effect
A+ Goal FitA+ Strength of SupportA+ CoverageA- Formula Quality
Alpha-GPC · 600 mgCaffeine · 100 mg

Acetyl-L-carnitine, AlphaSize Alpha-GPC, L-tyrosine, caffeine, methyliberine, phosphatidylserine, Lion’s Mane, and huperzia create comprehensive focus support. Most headline actives are supplied at substantial amounts and several use recognized branded forms.

The combined caffeine and methyliberine load may cause jitteriness or disrupt sleep in stimulant-sensitive users. The formula remains coherent, but its many powerful pathways require more caution than a simpler focus product.

Study evidence
Alpha-GPC Supportive 1 study
Caffeine Supportive 128 studies
Energy
Energy
Impact
Highest effect
A Goal FitA Strength of SupportA CoverageB Formula Quality
Caffeine · 100 mg

Caffeine, methyliberine, acetyl-L-carnitine, tyrosine, alpha-GPC, and phosphatidylserine cover alertness, focus, and metabolic support. The main acute energy actives have credible evidence and substantial disclosed amounts.

Branded forms and precise amounts support good transparency across most of the formula. Multiple stimulants and a long nootropic stack create more complexity and interaction risk than a simple energy product. Caffeine and methyliberine combine with other stimulating nootropics, so stimulant-sensitive users and those using activating medicines may face excessive alertness, rapid heartbeat, or sleep disruption.

Study evidence
Caffeine Supportive 68 studies
Cognitive Support
Cognitive Support
Impact
Highest effect
A Goal FitA- Strength of SupportA CoverageB+ Formula Quality
Alpha-GPC · 600 mgHericium mushroom · 1 Gram(s)

Acetyl-L-carnitine, branded Alpha-GPC, lion’s mane, L-tyrosine, phosphatidylserine, caffeine, and huperzine create a powerful multi-pathway stack. Amounts are substantial across brain energy, acetylcholine, alertness, and membrane support.

Several branded ingredients improve confidence, although lion’s mane extraction and huperzine active yield are unclear. Caffeine plus methyliberine may cause jitters, rapid heartbeat, or sleep disruption in stimulant-sensitive users.

Study evidence
Alpha-GPC Supportive 15 studies
Productivity Boost
Productivity Boost
Impact
Highest effect
A Goal FitA- Strength of SupportA CoverageB- Formula Quality
Alpha-GPC · 600 mgCaffeine · 100 mg

Acetyl-L-carnitine, Alpha-GPC, tyrosine, caffeine, methyliberine, phosphatidylserine, and huperzine create a powerful multi-pathway nootropic. The formula strongly targets alertness, cholinergic signaling, mental energy, and neurotransmitter support.

Most actives are clearly disclosed at substantial amounts, although active Alpha-GPC yield is not explicit and tyrosine sits below the stated ideal. Combined caffeine and methyliberine may cause jitters, a faster heartbeat, or sleep disruption in stimulant-sensitive users.

Study evidence
Alpha-GPC Supportive 2 studies
Caffeine Supportive 108 studies
Brain Health
Brain Health
Impact
Highest effect
A- Goal FitB+ Strength of SupportA- CoverageA- Formula Quality
Alpha-GPC · 600 mg

Acetyl-L-carnitine, Alpha-GPC, phosphatidylserine, tyrosine, caffeine, and huperzine create a strongly targeted focus formula. The combination covers cellular energy, cholinergic signaling, membrane support, and alertness.

Most central actives are supplied at useful amounts, though the Alpha-GPC active yield and huperzine amount are not fully clear from the label. Caffeine plus methyliberine can create a pronounced stimulant effect, but the formula otherwise shows strong cognitive depth and logic.

Study evidence
Alpha-GPC Supportive 12 studies
Tyrosine Supportive 7 studies
Anti-Aging
Anti-Aging
Impact
High effect
B Goal FitB+ Strength of SupportB+ CoverageC+ Formula Quality
Alpha-GPC · 600 mg

Acetyl L-carnitine, Alpha-GPC, phosphatidylserine, and lion’s mane provide a strong cognitive and mitochondrial theme. Several main ingredients are supplied at meaningful amounts and use recognizable branded materials.

Caffeine and methyliberine create a stimulant load that may disrupt sleep or cause jitteriness in sensitive users. Unclear active yield for Alpha-GPC and incomplete huperzine disclosure leave important potency questions.

Study evidence
Alpha-GPC Not classified

No linked studies yet.

Ingredients

IngredientAmount per serving
Acetyl-L-Carnitine Hydrochloride
1 Gram(s)
Lion's Mane powder
1 Gram(s)
AlphaSize (Alpha-GPC)
 600 mg
L-Tyrosine
500 mg
Methyliberine (Dynamine)
 125 mg
Caffeine (Coffea arabica)
 100 mg
SerinAid (Phosphatidylserine)
 100 mg
NeuroFactor
100 mg
AstraGin (Astragalus root extract, Panax notoginseng root extract)
 50 mg
Huperzia serrata (Huperzine-A)
 10 mg
Adults 18–50 Women
Report overview
Tyrosine · 500 mg OverallScore70
B- Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyF Value

Standard L-Tyrosine is clearly listed at a well-aligned 500 mg amount. No tyrosine-specific source, purity grade, or testing information is provided, while cost per gram remains unfavorable. Caffeine and methyliberine create a meaningful stimulant load that may not suit sensitive users.

View ingredientView products
Caffeine (Coffea arabica) · 100 mg OverallScore68
C Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyF Value

Coffee-derived caffeine is clearly quantified at 100 mg, a moderate amount on its own. The separately measured methyliberine adds substantial stimulant activity, while no sustained-release caffeine system is present. The combined stimulant profile calls for caution in sensitive users, and the serving cost is very high.

View ingredientView products
Alpha-GPC · 600 mg OverallScore67
C+ Active Ingredient Quality & BioavailabilityB+ Dose, Safety & Label TransparencyD- Value

AlphaSize provides a recognized branded form, but the listed 600 mg does not clarify active yield. Assuming 50% yield, the estimated 300 mg active amount reaches the preferred range. Combining 100 mg caffeine with 125 mg methyliberine may increase jitteriness or disrupt sleep in stimulant-sensitive users.

View ingredientView products
Loading alternative details
82 Performance

Pulse Fruit Punch

Legion
<p>Alpha-GPC, caffeine, and a high amount of L-theanine create a more balanced stimulant profile, while citrulline, beta-alanine, and betaine add substantial workout support. Tyrosine and the original mushroom and phospholipid ingredients are absent, so it is better for training rather than broad cognition.</p>
84 Performance

High-Performance Pre-Workout Black Cherry

Pre JYM
<p>Tyrosine rises to 1.5 g and is paired with caffeine, alpha-GPC, huperzine, creatine, citrulline, taurine, betaine, and BCAAs. Alpha-GPC is lower and caffeine is higher, but the performance formula is more comprehensive for training.</p>
80 Performance

C4 Ultimate Icy Blue Razz

Nutrabolt
<p>Caffeine, alpha-GPC, N-acetyl-tyrosine, and huperzine retain several focus pathways while citrulline, beta-alanine, creatine, and taurine broaden exercise support. The stimulant burden is higher and the cognitive ingredients are generally lower than in the original.</p>
75 Budget

Seventh Gear Your Mom's Lemonade

Axe & Sledge Supplements
<p>A lower serving cost provides moderate caffeine, alpha-GPC, choline, theacrine, and huperzine for stimulant-based focus. It omits tyrosine, acetyl-L-carnitine, lion’s mane, phosphatidylserine, and NeuroFactor, so cognitive breadth is lower.</p>
72 Budget

Animal Fury Green Apple Flavor

Animal
<p>Tyrosine is doubled to 1,000 mg and paired with BCAAs, citrulline, beta-alanine, and caffeine for less per serving. The much higher caffeine amount and absence of alpha-GPC, acetyl-L-carnitine, lion’s mane, and phosphatidylserine shift it toward workout stimulation.</p>
71 Budget

Bucked Up Pre-Workout 'Merica Rocket Pop

DAS Labs
<p>Caffeine and branded alpha-GPC preserve two original focus ingredients while citrulline and beta-alanine add exercise support at a lower serving cost. Alpha-GPC is much lower and tyrosine is absent, making it less suitable as a nootropic-focused replacement.</p>
76 Value

Pre-Workout Blood Raz

Bucked Up
<p>Branded alpha-GPC and caffeine are combined with citrulline, beta-alanine, taurine, and trace minerals at a lower serving cost. The formula gives up tyrosine and most non-stimulant nootropics, but offers stronger value for workout-focused use.</p>
75 Value

Animal Fury Watermelon Flavor

Animal
<p>Tyrosine reaches 1,000 mg alongside BCAAs, citrulline, beta-alanine, and caffeine for substantially less per serving. Alpha-GPC and the broader cognitive stack are missing, and the higher caffeine amount requires more caution.</p>
82 Value

High-Performance Pre-Workout Strawberry Kiwi

Pre JYM
<p>Tyrosine, caffeine, alpha-GPC, and huperzine are joined by well-disclosed creatine, citrulline, taurine, betaine, and BCAAs. It costs less and offers deeper training support, although alpha-GPC is lower and stimulant exposure is higher.</p>
Report alternatives

Sources

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

  1. Effect of Choline Alfoscerate on the Progression From Mild Cognitive Impairment to Dementia: Distributed Network Analysis of a Multicenter Korean Database Using a Common Data Model.
    Pyun JM; Lee I; Lee K; Kim MH; Park C; Yang HJ · Dementia and neurocognitive disorders · 2024
    Cohort study3,062 participantsCognitive Support forAlpha-GPC
  2. The Care Pathway for Patients with Mild Cognitive Impairment in Korea: A Survey of Dementia Specialists.
    Choi SH; Shim Y; Kim S; Yang DW; Park KH; Kim J; Youn YC · Dementia and geriatric cognitive disorders extra · 2025
    Cross-sectional studyCognitive Support forAlpha-GPC
  3. Comparative study of choline alfoscerate as a combination therapy with donepezil: A mixed double-blind randomized controlled and open-label observation trial.
    Lee W; Kim M · Medicine · 2024
    Randomized trial119 participantsCognitive Support Brain Health forAlpha-GPC
  4. Activity of Choline Alphoscerate on Adult-Onset Cognitive Dysfunctions: A Systematic Review and Meta-Analysis.
    Sagaro GG; Traini E; Amenta F · Journal of Alzheimer's disease : JAD · 2023
    Meta-analysis8 studies pooledCognitive Support Brain Health forAlpha-GPC
  5. Effects of choline alfoscerate on cognitive function and quality of life in type 2 diabetes: A double-blind, randomized, placebo-controlled trial.
    Sohn M; Park YH; Lim S · Diabetes, obesity & metabolism · 2025
    Randomized trial36 participantsCognitive Support Brain Health forAlpha-GPC
  6. [Gliatilin in the Treatment of Cognitive Impairments Not Reaching the Level of Dementia: Meta-Analysis and Systematic Review].
    Voznyuk IA; Nepomnyashchiy IS; Kutkova AK; Tokareva DV; Prokhorova MV; Ovdiienko OA; Shusharina NN · Zhurnal nevrologii i psikhiatrii imeni S.S. Korsakova · 2025
    Meta-analysis10 studies pooledCognitive Support forAlpha-GPC
  7. Vertical Association Between Dietary Total Choline and L-alpha-glycerylphosphorylcholine and the Cognitive Function in Chinese Adults Aged over 55, Result from China Health and Nutrition Survey 1997-2018.
    Guan F; Jia X; Huang F; Zhang J; Wei Y; Li L; Bai J; Wang H · Nutrients · 2024
    Cohort study7,659 participantsCognitive Support forAlpha-GPC
  8. A multicentre trial to evaluate the efficacy and tolerability of alpha-glycerylphosphorylcholine versus cytosine diphosphocholine in patients with vascular dementia.
    Di Perri R; Coppola G; Ambrosio LA; Grasso A; Puca FM; Rizzo M · The Journal of international medical research · 1991
    Randomized trial120 participantsCognitive Support forAlpha-GPC
  9. [Efficacy of choline alfoscerate treatment for subjective cognitive impairment in first-degree relatives of patients with Alzheimer's disease: Results of a comparative 5-year study].
    Selezneva ND; Roshchina IF; Gavrilova SI · Zhurnal nevrologii i psikhiatrii imeni S.S. Korsakova · 2026
    Non-randomized trial122 participantsCognitive Support forAlpha-GPC
  10. [Modern approaches to the diagnostics and treatment of the consequences of traumatic brain injury in children and adolescents].
    Nemkova SA · Zhurnal nevrologii i psikhiatrii imeni S.S. Korsakova · 2022
    Randomized trialCognitive Support forAlpha-GPC
  11. Acute Alpha-Glycerylphosphorylcholine Supplementation Enhances Cognitive Performance in Healthy Men.
    Kerksick CM · Nutrients · 2024
    Randomized trial20 participantsBrain Health Mental Focus Productivity Boost forAlpha-GPC
  12. Cognitive improvement in mild to moderate Alzheimer's dementia after treatment with the acetylcholine precursor choline alfoscerate: a multicenter, double-blind, randomized, placebo-controlled trial.
    De Jesus Moreno Moreno M · Clinical therapeutics · 2003
    Randomized trial261 participantsBrain Health forAlpha-GPC
  13. Combined L-carnosine and L-tyrosine supplementation as an ergogenic strategy for physical and cognitive performance under fatigue in professional football players.
    Bilgin S; Bozyılan E; Buzdağlı Y; Karaç Öcal Y; Gürkan O; Toktaş S; İnan H; Egil İ; Yarayan YE · Frontiers in nutrition · 2026
    Randomized trial24 participantsBrain Health forTyrosine
  14. Effect of tyrosine supplementation on clinical and healthy populations under stress or cognitive demands--A review.
    Jongkees BJ; Hommel B; Kühn S; Colzato LS · Journal of psychiatric research · 2016
    Narrative reviewBrain Health forTyrosine
  15. Influence of nutritional tyrosine on cognition and functional connectivity in healthy old humans.
    Hensel C; Becker M; Düzel S; Demuth I; Norman K; Steinhagen-Thiessen E; Gallinat J; Lindenberger U; Kühn S · NeuroImage · 2019
    Cross-sectional study286 participantsBrain Health forTyrosine
  16. Dietary Tyrosine Intake (FFQ) Is Associated with Locus Coeruleus, Attention and Grey Matter Maintenance: An MRI Structural Study on 398 Healthy Individuals of the Berlin Aging Study-II.
    Plini ERG; Melnychuk MC; Harkin A; Dahl MJ; McAuslan M; Kühn S; Boyle RT; Whelan R; Andrews R; Düzel S; Drewelies J; Wagner GG; Lindenberger U; Norman K; Robertson IH; Dockree PM · The journal of nutrition, health & aging · 2023
    Cross-sectional study398 participantsBrain Health forTyrosine
  17. Baseline-dependent effect of dopamine's precursor L-tyrosine on working memory gating but not updating.
    Jongkees BJ · Cognitive, affective & behavioral neuroscience · 2021
    Randomized trial45 participantsBrain Health forTyrosine
  18. Cognitive and mood improvements of caffeine in habitual consumers and habitual non-consumers of caffeine.
    Haskell CF; Kennedy DO; Wesnes KA; Scholey AB · Psychopharmacology · 2005
    Randomized trial48 participantsEnergy forCaffeine
  19. Caffeine-containing energy drink improves physical performance of elite rugby players during a simulated match.
    Del Coso J; Ramírez JA; Muñoz G; Portillo J; Gonzalez-Millán C; Muñoz V; Barbero-Álvarez JC; Muñoz-Guerra J · Applied physiology, nutrition, and metabolism = Physiologie appliquee, nutrition et metabolisme · 2016
    Randomized trial26 participantsEnergy forCaffeine
  20. Differential cognitive effects of energy drink ingredients: caffeine, taurine, and glucose.
    Giles GE; Mahoney CR; Brunyé TT; Gardony AL; Taylor HA; Kanarek RB · Pharmacology, biochemistry, and behavior · 2013
    Randomized trial48 participantsEnergy forCaffeine
  21. Does Single or Combined Caffeine and Taurine Supplementation Improve Athletic and Cognitive Performance without Affecting Fatigue Level in Elite Boxers? A Double-Blind, Placebo-Controlled Study.
    Ozan M; Buzdagli Y; Eyipinar CD; Baygutalp NK; Yüce N; Oget F; Kan E; Baygutalp F · Nutrients · 2022
    Randomized trial20 participantsEnergy forCaffeine
  22. Trait Energy and Fatigue Modify the Effects of Caffeine on Mood, Cognitive and Fine-Motor Task Performance: A Post-Hoc Study.
    Fuller DT; Smith ML; Boolani A · Nutrients · 2021
    Randomized trialEnergy forCaffeine
  23. Effect of caffeine ingestion on cycling performance: a systematic review and meta-analysis.
    Wu J; Xu K; Yin M; Ding X; Wang T; Zhang Q; Wu X; Xiao N · Frontiers in nutrition · 2026
    Meta-analysis226 participants20 studies pooledFitness forCaffeine
  24. Effects of Caffeine Intake on Endurance Running Performance and Time to Exhaustion: A Systematic Review and Meta-Analysis.
    Wang Z; Qiu B; Gao J; Del Coso J · Nutrients · 2023
    Meta-analysis254 participants21 studies pooledFitness forCaffeine
  25. Acute Effects of Caffeine Supplementation on Movement Velocity in Resistance Exercise: A Systematic Review and Meta-analysis.
    Raya-González J; Rendo-Urteaga T; Domínguez R; Castillo D; Rodríguez-Fernández A; Grgic J · Sports medicine (Auckland, N.Z.) · 2021
    Meta-analysis12 studies pooledFitness forCaffeine
  26. Sex Differences in the Ergogenic Response of Acute Caffeine Intake on Muscular Strength, Power and Endurance Performance in Resistance-Trained Individuals: A Randomized Controlled Trial.
    Montalvo-Alonso JJ; Ferragut C; Del Val-Manzano M; Valadés D; Roberts J; Pérez-López A · Nutrients · 2024
    Randomized trial76 participantsFitness forCaffeine
  27. Can I Have My Coffee and Drink It? A Systematic Review and Meta-analysis to Determine Whether Habitual Caffeine Consumption Affects the Ergogenic Effect of Caffeine.
    Carvalho A; Marticorena FM; Grecco BH; Barreto G; Saunders B · Sports medicine (Auckland, N.Z.) · 2022
    Meta-analysis60 studies pooledFitness forCaffeine
  28. Effects of modafinil and caffeine on night-time vigilance of air force crewmembers: A randomized controlled trial.
    Wingelaar-Jagt YQ; Bottenheft C; Riedel WJ; Ramaekers JG · Journal of psychopharmacology (Oxford, England) · 2023
    Randomized trial32 participantsMental Focus forCaffeine
  29. Acute effects of caffeine on attention: a comparison of non-consumers and withdrawn consumers.
    Smith AP; Christopher G; Sutherland D · Journal of psychopharmacology (Oxford, England) · 2013
    Randomized trial70 participantsMental Focus forCaffeine
  30. Performance and alertness effects of caffeine, dextroamphetamine, and modafinil during sleep deprivation.
    Wesensten NJ; Killgore WD; Balkin TJ · Journal of sleep research · 2006
    Randomized trial48 participantsMental Focus forCaffeine
  31. Effects of caffeine on mood and performance: a study of realistic consumption.
    Brice CF; Smith AP · Psychopharmacology · 2003
    Clinical trial24 participantsMental Focus forCaffeine
  32. Effects of caffeine or diphenhydramine on visual vigilance.
    Fine BJ; Kobrick JL; Lieberman HR; Marlowe B; Riley RH; Tharion WJ · Psychopharmacology · 1995
    Randomized trial24 participantsMental Focus forCaffeine
  33. A Randomized Study to Examine the Ability of a Caffeine-Based Energy Drink to Impact Energy Expenditure, Fat Oxidation, and Cognitive Performance.
    Krieger J; Schrautemeier A; Hagele A; Gaige C; Mennemeyer O; Tolbert S; Iannotti J; Kerksick C; Noonan C; Mumford P · Nutrients · 2025
    Randomized trial60 participantsMetabolism Boost forCaffeine
  34. Oolong tea increases metabolic rate and fat oxidation in men.
    Rumpler W; Seale J; Clevidence B; Judd J; Wiley E; Yamamoto S; Komatsu T; Sawaki T; Ishikura Y; Hosoda K · The Journal of nutrition · 2001
    Randomized trial12 participantsMetabolism Boost forCaffeine
  35. Effect of caffeine intake on fat oxidation rate during exercise: is there a dose-response effect?
    Gutiérrez-Hellín J; Aguilar-Navarro M; Ruiz-Moreno C; Muñoz A; Varillas-Delgado D; Amaro-Gahete FJ; Del Coso J · European journal of nutrition · 2023
    Randomized trial18 participantsMetabolism Boost forCaffeine
  36. Comparison of changes in energy expenditure and body temperatures after caffeine consumption.
    Koot P; Deurenberg P · Annals of nutrition & metabolism · 1995
    Randomized trial12 participantsMetabolism Boost forCaffeine
  37. Caffeine Increases Work Done above Critical Power, but Not Anaerobic Work.
    Silveira R; Andrade-Souza VA; Arcoverde L; Tomazini F; Sansonio A; Bishop DJ; Bertuzzi R; Lima-Silva AE · Medicine and science in sports and exercise · 2018
    Randomized trial9 participantsMetabolism Boost forCaffeine
  38. Treatment of dementia with neurotransmission modulation.
    Doggrell SA; Evans S · Expert opinion on investigational drugs · 2004
    Narrative reviewProductivity Boost forAlpha-GPC
  39. Effects of caffeine on alertness.
    Zwyghuizen-Doorenbos A; Roehrs TA; Lipschutz L; Timms V; Roth T · Psychopharmacology · 1990
    Randomized trial24 participantsProductivity Boost forCaffeine
  40. Effects of Different Sources of Low-Dose Caffeine on Mood/Arousal and Cognitive Performance.
    Irwin C; McCartney D; Grant G; Delang N; Bartrim K; Cox GR; Desbrow B · Perceptual and motor skills · 2023
    Randomized trial22 participantsProductivity Boost forCaffeine
  41. Effects of caffeine, sleep loss, and stress on cognitive performance and mood during U.S. Navy SEAL training. Sea-Air-Land.
    Lieberman HR; Tharion WJ; Shukitt-Hale B; Speckman KL; Tulley R · Psychopharmacology · 2003
    Randomized trial68 participantsProductivity Boost forCaffeine
  42. A review of caffeine's effects on cognitive, physical and occupational performance.
    McLellan TM; Caldwell JA; Lieberman HR · Neuroscience and biobehavioral reviews · 2017
    Narrative reviewProductivity Boost forCaffeine
  43. Acute caffeine supplementation as a nutrition-based strategy to mitigate sleep-loss-related cognitive and operational performance impairments in military personnel: a systematic review and meta-analysis.
    Wang R; Wang W; Meng L; Hao G; Gu G · Frontiers in nutrition · 2026
    Meta-analysis7 studies pooledProductivity Boost forCaffeine
  44. Changes in caffeine intake and long-term weight change in men and women.
    Lopez-Garcia E; van Dam RM; Rajpathak S; Willett WC; Manson JE; Hu FB · The American journal of clinical nutrition · 2006
    Cohort study58,157 participantsWeight Loss forCaffeine
  45. Does caffeine ingestion before a short-term sprint interval training promote body fat loss?
    Ferreira GA; Felippe LC; Bertuzzi R; Bishop DJ; Ramos IS; De-Oliveira FR; Lima-Silva AE · Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologicas · 2020
    Randomized trial20 participantsWeight Loss forCaffeine
  46. Eight Weeks of Sprint Interval Training With Adding Caffeine Ingestion Leads to Greater Improvements in Health-Related Physiological Parameters in Obese Male Adults.
    Zhiang J; Song Q · Physiological research · 2026
    Randomized trial30 participantsWeight Loss forCaffeine
  47. Caffeine treatment prevented from weight regain after calorie shifting diet induced weight loss.
    Davoodi SH; Hajimiresmaiel SJ; Ajami M; Mohseni-Bandpei A; Ayatollahi SA; Dowlatshahi K; Javedan G; Pazoki-Toroudi H · Iranian journal of pharmaceutical research : IJPR · 2014
    Non-randomized trial60 participantsWeight Loss forCaffeine
  48. The effects of caffeine intake on weight loss: a systematic review and dos-response meta-analysis of randomized controlled trials.
    Tabrizi R; Saneei P; Lankarani KB; Akbari M; Kolahdooz F; Esmaillzadeh A; Nadi-Ravandi S; Mazoochi M; Asemi Z · Critical reviews in food science and nutrition · 2020
    Meta-analysis606 participants13 studies pooledWeight Loss forCaffeine