Product Image

High-Performance Pre-Workout Rainbow Sherbet

Pre JYM
4.7
★ ★ ★ ★ ★
(842 ratings)
Huperzine 50 mcg
Caffeine 300 mg
Sodium 240 mg
Alpha-GPC 150 mg
Product Image
Score80
A relatively better-value version of a strong, transparent pre-workout, with the same high-caffeine limitations.
How scoring works
Quantity:28 Ounce(s) • (30 servings)
Goals:
Fitness
Energy
Productivity Boost
Metabolism Boost
Muscle Gain
Weight Loss
Mental Focus
Cognitive Support
Brain Health

Score 80

A relatively better-value version of a strong, transparent pre-workout, with the same high-caffeine limitations.
How scoring works

Also available as

4 options
Tangerine Caffeine 300 mg, Sodium 100 mg +2 more • 26 Ounce(s) • 30 servings $48.99 ($1.63 per serving) 27 servings • Pineapple Strawberry Caffeine 300 mg, Sodium 230 mg +2 more • 27 Ounce(s) • 30 servings $49.99 ($1.66 per serving) Grape Candy Caffeine 300 mg, Sodium 100 mg +2 more • 26 Ounce(s) • 30 servings $49.99 ($1.66 per serving) Black Cherry Caffeine 300 mg, Huperzine 50 mcg +1 more • 27 Ounce(s) • 30 servings $53.99 ($1.79 per serving)
$39.99($1.33 per serving)
Amazon
$ 49.99
iHerb
$ 53.99
Nutrition Faktory
$ 39.99
Report prices

Analysis

The serving provides substantial citrulline malate, creatine HCl, betaine, taurine, branched-chain amino acids, and tyrosine. Huperzine A is clearly quantified, and the formula hides none of its major performance ingredients.

Caffeine remains high at 300 mg and may overwhelm sensitive users. Sodium is close to a useful lower workout range, but potassium is modest and magnesium is missing.

This flavor offers better value than several related versions while preserving the same core formula. It still belongs in an early-day training routine for experienced stimulant users.

Who is it for
  • Experienced pre-workout users
  • Caffeine-tolerant athletes
  • People prioritizing full formula disclosure
Best for
  • High-energy training
  • Muscle performance
  • Workout focus

Pros

  • Broad fully disclosed actives
  • Useful Huperzine A amount
  • Better value than related flavors

Cons

  • High caffeine
  • Modest Alpha-GPC
  • Not a complete electrolyte product

Warnings

  • The 300 mg caffeine serving may cause jitters, rapid heartbeat, or sleep loss
  • Do not combine with other stimulant products
  • Huperzine A may cause nausea, vivid dreams, or headache in sensitive users

Nutrient quality

78 High impact

Citrulline malate, creatine HCl, beta-alanine, betaine, taurine, amino acids, and tyrosine provide broad workout support. Several doses are useful but not fully optimized, while the caffeine amount is aggressive for sensitive users.

Ingredient transparency

84 Highest impact

Every active ingredient has a separate amount and no proprietary blend hides the performance formula. Flavor-system ingredients and complete mixing guidance are not supplied, while beet standardization remains unclear.

Customer satisfaction

74 High impact

The very strong average rating has a useful review base. No review excerpts describe taste, tolerance, ease of use, or repeated complaints, so those experiences remain uncertain.

Value for money

83 Highest impact

A lower serving cost makes this variant the strongest value among the otherwise similar flavors. Full dose disclosure and broad performance coverage support the premium better than opaque blends would.

Report analysis

Goals

Fitness
Fitness
Impact
Highest effect
A+ Goal FitA Strength of SupportA+ CoverageA Formula Quality
Creatine · 2 Gram(s)Beta-Alanine · 2 Gram(s)Caffeine · 300 mg

Citrulline, creatine, beta-alanine, betaine, taurine, branched-chain amino acids, and caffeine cover many major pre-workout needs. Most active amounts are fully disclosed, including a substantial citrulline serving and a strong caffeine load.

The 300 mg caffeine amount may cause jitters, rapid heartbeat, or sleep disruption, while 240 mg sodium adds useful hydration support. Beta-alanine and creatine are somewhat modest, but the formula remains broad and performance-focused.

Study evidence
Caffeine Supportive 255 studies
Creatine Supportive 143 studies
Sodium Supportive 96 studies
Taurine Supportive 21 studies
Energy
Energy
Impact
Highest effect
A+ Goal FitA Strength of SupportA CoverageB+ Formula Quality
Potassium · 61 mgCaffeine · 300 mgCreatine · 2 Gram(s)

Caffeine, tyrosine, creatine, citrulline, beta-alanine, and betaine create a potent acute energy and performance formula. The 300 mg caffeine amount provides strong alertness but may feel intense for caffeine-sensitive users.

Most performance ingredients are individually disclosed at meaningful amounts, although some sit below common full standalone servings. Combining the serving with other caffeine sources may increase insomnia, anxiety, rapid heartbeat, or blood pressure effects.

Study evidence
Caffeine Supportive 68 studies
Creatine Supportive 49 studies
Productivity Boost
Productivity Boost
Impact
Highest effect
A Goal FitA Strength of SupportA- CoverageC+ Formula Quality
Creatine · 2 Gram(s)Huperzine · 50 mcgAlpha-GPC · 150 mgCaffeine · 300 mg

Caffeine, L-tyrosine, Alpha-GPC, and Huperzine A offer substantial acute support for alertness and concentration. Their combination is relevant to demanding tasks despite the product's primary pre-workout design.

Exact doses are supplied, though the generic Alpha-GPC source does not state active yield or enhanced quality controls. The 300 mg caffeine amount may cause jitteriness, sleep disruption, or a rapid heartbeat, especially when combined with other caffeine.

Study evidence
Alpha-GPC Supportive 2 studies
Caffeine Supportive 108 studies
Huperzine No effect 1 study
Metabolism Boost
Metabolism Boost
Impact
Highest effect
B+ Goal FitA Strength of SupportB CoverageB- Formula Quality
Creatine · 2 Gram(s)Caffeine · 300 mg

Caffeine directly raises short-term energy expenditure, while tyrosine and exercise-performance ingredients support active energy use. Human evidence strongly supports caffeine for thermogenesis, while the other ingredients mainly improve training performance rather than resting metabolism.

The 300 mg caffeine amount is potent, and citrulline, tyrosine, taurine, betaine, and creatine are supplied at meaningful performance doses. All major amounts and forms are disclosed, including pure caffeine anhydrous and branded creatine. The 300 mg caffeine amount may cause jitteriness, sleep disruption, or a rapid heartbeat and should not be stacked with other stimulants.

Study evidence
Caffeine Disputed 40 studies
Creatine Supportive 21 studies
Taurine Supportive 11 studies
Muscle Gain
Muscle Gain
Impact
Highest effect
A- Goal FitB Strength of SupportB+ CoverageB+ Formula Quality
Creatine · 2 Gram(s)Caffeine · 300 mgBeta-Alanine · 2 Gram(s)

Creatine HCl, citrulline malate, beta-alanine, betaine, and caffeine create broad support for strength-focused training and workout volume. Leucine and the other branched-chain amino acids may add little when complete protein intake is already sufficient.

Several actives are below common standalone targets, but their combined effects still form a substantial pre-workout stack. The strong caffeine amount may cause jitters or disrupt sleep in sensitive users, which can interfere with recovery.

Study evidence
Alpha-GPC Not classified 1 study
Caffeine Supportive 31 studies
Creatine Supportive 136 studies
Weight Loss
Weight Loss
Impact
Highest effect
B Goal FitA- Strength of SupportB CoverageA- Formula Quality
Creatine · 2 Gram(s)Caffeine · 300 mg

A 300 mg caffeine serving supports thermogenesis and workout intensity, while creatine and branched-chain amino acids may help training quality and lean-mass retention during a calorie deficit. The formula therefore addresses both calorie expenditure and performance, though it does not directly manage hunger.

Nearly every active has a disclosed amount, and several performance ingredients are supplied at meaningful levels. The caffeine dose is high enough to cause insomnia, anxiety, rapid heartbeat, or blood-pressure increases in sensitive users and should not be stacked with other stimulants.

Study evidence
Caffeine Disputed 14 studies
Creatine No effect 27 studies

Ingredients

IngredientAmount per serving
Calories
80 Calorie(s)
Sodium
240 mg
Total Carbohydrates
3 Gram(s)
Calcium
52 mg
Potassium
61 mg
Creatine HCl
2 Gram(s)
Beta-Alanine
2 Gram(s)
Betaine
1.5 Gram(s)
Taurine
1 Gram(s)
Alpha-Glyceryl Phosphoryl Choline
150 mg
Citrulline Malate
6 Gram(s)
Beet root extract
500 mg
L-Leucine
3 Gram(s)
L-Isoleucine
1.5 Gram(s)
L-Valine
1.5 Gram(s)
L-Tyrosine
1.5 Gram(s)
Caffeine Anhydrous
300 mg
Huperzine A (Toothed Clubmoss aerial parts extract)
 50 mcg
BioPerine (Black Pepper Fruit Extract)
 5 mg
Adults 18–50 Women
Report overview
Huperzine (Toothed Clubmoss aerial parts extract) · 50 mcg OverallScore81
B Active Ingredient Quality & BioavailabilityA- Dose, Safety & Label TransparencyB+ Value

The formula provides a useful, fully disclosed amount of Huperzine A from Toothed Clubmoss extract. Alpha-GPC and other substantial workout ingredients make it more compelling as a complete pre-workout, although the large powder scoop is not ideal for precise microgram delivery. Its 300 mg caffeine dose can increase jitteriness, sleep disruption, or a rapid heartbeat when used by sensitive people or combined with other stimulants.

View ingredientView products
Caffeine · 300 mg OverallScore69
B Active Ingredient Quality & BioavailabilityA Dose, Safety & Label TransparencyF Value

Caffeine anhydrous provides a pure, well-characterized source at a strong amount for performance. The immediate-release formula lacks a sustained component, and the dose may feel intense for caffeine-sensitive users. Its broad pre-workout profile is fully disclosed, but the serving cost is very high.

View ingredientView products
Sodium · 240 mg OverallScore64
D- Active Ingredient Quality & BioavailabilityB Dose, Safety & Label TransparencyB+ Value

The sodium amount sits just below the preferred range for substantial sweat replacement. The sodium source is not identified, which limits confidence in its purity and functional form. The serving cost remains competitive for the formula.

View ingredientView products
Loading alternative details
60 Performance

C4 Ultimate Icy Blue Razz

Nutrabolt
<p>A full beta-alanine amount and two disclosed creatine sources strengthen the training side of the formula. Caffeine remains high, while added theacrine and rauwolfia increase stimulant complexity and the pump blend is not fully broken down.</p>
54 Performance

LFG Burn Tropical

Bucked Up
<p>Beta-alanine, Nitrosigine, alpha-GPC, and a larger huperzine amount create a more focus- and stimulation-oriented pre-workout. Two caffeine entries and several potent stimulant-related ingredients raise safety and tolerance concerns, while creatine and citrulline are absent.</p>
71 Performance

High-Performance Pre-Workout Black Cherry

Pre JYM
<p>The core citrulline, creatine, beta-alanine, betaine, taurine, amino acids, caffeine, and huperzine profile closely matches the original, with branded creatine and alpha-GPC forms named. Sodium is very low and the serving costs more, so the improvement is mainly in ingredient identification.</p>
66 Budget

Bucked Up Pre-Workout 'Merica Rocket Pop

DAS Labs
<p>Six grams of citrulline malate and two grams of beta-alanine preserve much of the workout focus with less caffeine and slightly more alpha-GPC. No eligible option in the list costs less than the original, but this is among the closest in serving cost. Creatine is absent, taurine is much lower, and deer antler extract adds unclear practical value.</p>
66 Budget

Pre-Workout Blood Raz

Bucked Up
<p>Six grams of citrulline malate and two grams of beta-alanine preserve much of the workout focus with less caffeine and slightly more alpha-GPC. No eligible option in the list costs less than the original, but this is among the closest in serving cost. Creatine is absent, taurine is much lower, and deer antler extract adds unclear practical value.</p>
79 Budget

High-Performance Pre-Workout Pineapple Strawberry

Pre JYM
<p>The core performance and focus ingredients match the original, with more sodium and potassium than the lower-electrolyte flavors. No eligible candidate is cheaper than the Rainbow Sherbet version, so this is a close formula substitute rather than a true cheaper option.</p>
79 Value

High-Performance Pre-Workout Grape Candy

Pre JYM
<p>The fully disclosed training formula closely matches the original across citrulline, creatine, beta-alanine, betaine, taurine, amino acids, caffeine, and huperzine. Serving cost is not lower, and sodium and potassium are lower than in some flavors, so the practical advantage is limited to flavor choice.</p>
59 Value

C4 Ultimate Strawberry Watermelon

Cellucor
<p>A full beta-alanine amount and two creatine sources provide useful training coverage, while caffeine and huperzine match the original amounts. The serving cost is higher, the pump matrix is not fully disclosed, and theacrine plus rauwolfia add stimulant complexity.</p>
65 Value

Bucked Up Watermelon

Bucked Up
<p>Citrulline malate and beta-alanine match key training ingredients while the lower caffeine amount may be easier to tolerate. Creatine is absent, taurine is much lower, and deer antler extract adds an ingredient with unclear practical value.</p>
Report alternatives

Sources

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

  1. International Society of Sports Nutrition position stand: sodium bicarbonate and exercise performance.
    Grgic J; Pedisic Z; Saunders B; Artioli GG; Schoenfeld BJ; McKenna MJ; Bishop DJ; Kreider RB; Stout JR; Kalman DS; Arent SM; VanDusseldorp TA; Lopez HL; Ziegenfuss TN; Burke LM; Antonio J; Campbell BI · Journal of the International Society of Sports Nutrition · 2021
    Guideline / consensusFitness forSodium
  2. Sodium Hyperhydration Improves Performance With No Change in Thermal and Cardiovascular Strain in Female Cyclists Exercising in the Heat Across the Menstrual Cycle.
    Convit L; Orellana L; Périard JD; Carr AJ; Warmington S; Beaugeois M; Abraham A; Snipe RMJ · International journal of sport nutrition and exercise metabolism · 2025
    Randomized trial12 participantsFitness forSodium
  3. The effect of chronic progressive-dose sodium bicarbonate ingestion on CrossFit-like performance: A double-blind, randomized cross-over trial.
    Durkalec-Michalski K; Zawieja EE; Podgórski T; Łoniewski I; Zawieja BE; Warzybok M; Jeszka J · PloS one · 2018
    Randomized trial21 participantsFitness forSodium
  4. Negligible benefit of oral single-dose sodium bicarbonate on continuous running performance: systematic review with meta-analysis of randomized, double-blind, placebo-controlled trials.
    Miller LE; Bhattacharyya R; Katz SJ; Bhattacharyya M; Herbert WG · Journal of the International Society of Sports Nutrition · 2025
    Meta-analysis126 participants11 studies pooledFitness forSodium
  5. Increased blood pH but not performance with sodium bicarbonate supplementation in elite rugby union players.
    Cameron SL; McLay-Cooke RT; Brown RC; Gray AR; Fairbairn KA · International journal of sport nutrition and exercise metabolism · 2010
    Randomized trial25 participantsFitness forSodium
  6. 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
  7. 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
  8. Caffeine, CYP1A2 Genotype, and Endurance Performance in Athletes.
    Guest N; Corey P; Vescovi J; El-Sohemy A · Medicine and science in sports and exercise · 2019
    Randomized trial101 participantsFitness forCaffeine
  9. No effects of caffeine on cycling to exhaustion and perceptual responses in non-caffeine-restricted subjects.
    Weippert M; Behrens M; Schlegel M; Schröder T; Tillmann M; Rühe N; Römer R; Mau-Möller A; Bruhn S · Journal of the International Society of Sports Nutrition · 2025
    Randomized trial56 participantsFitness forCaffeine
  10. Acute Effects of Caffeine Supplementation on Physical Performance, Physiological Responses, Perceived Exertion, and Technical-Tactical Skills in Combat Sports: A Systematic Review and Meta-Analysis.
    Delleli S; Ouergui I; Messaoudi H; Trabelsi K; Ammar A; Glenn JM; Chtourou H · Nutrients · 2022
    Meta-analysis26 studies pooledFitness forCaffeine
  11. 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 pooledBrain Health Cognitive Support forAlpha-GPC
  12. 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 participantsBrain Health Cognitive Support forAlpha-GPC
  13. 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 participantsBrain Health Cognitive Support forAlpha-GPC
  14. Acute Alpha-Glycerylphosphorylcholine Supplementation Enhances Cognitive Performance in Healthy Men.
    Kerksick CM · Nutrients · 2024
    Randomized trial20 participantsBrain Health Mental Focus Productivity Boost forAlpha-GPC
  15. 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
  16. Oral creatine monohydrate supplementation improves brain performance: a double-blind, placebo-controlled, cross-over trial.
    Rae C; Digney AL; McEwan SR; Bates TC · Proceedings. Biological sciences · 2003
    Randomized trial45 participantsBrain Health forCreatine
  17. Creatine in Huntington disease is safe, tolerable, bioavailable in brain and reduces serum 8OH2'dG.
    Hersch SM; Gevorkian S; Marder K; Moskowitz C; Feigin A; Cox M; Como P; Zimmerman C; Lin M; Zhang L; Ulug AM; Beal MF; Matson W; Bogdanov M; Ebbel E; Zaleta A; Kaneko Y; Jenkins B; Hevelone N; Zhang H; Yu H; Schoenfeld D; Ferrante R; Rosas HD · Neurology · 2006
    Randomized trial64 participantsBrain Health forCreatine
  18. Creatine supplementation and cognitive performance in elderly individuals.
    McMorris T; Mielcarz G; Harris RC; Swain JP; Howard A · Neuropsychology, development, and cognition. Section B, Aging, neuropsychology and cognition · 2008
    Randomized trial32 participantsBrain Health forCreatine
  19. Effects of high-load, velocity-intentional variable resistance training combined with creatine supplementation on neuroplasticity, oxidative stress, inflammation, physical function, cognitive performance and quality of life in older adults: A randomized, double-blind, placebo-controlled trial.
    Fernandez-Garrido J; Martin EG; Saez-Berlanga A; Gargallo-Bayo P; Gene-Morales J; Alix-Fages C; Jiménez-Martínez P; Caballero O; Salvador-Palmer R; Colado JC · Experimental gerontology · 2026
    Randomized trial103 participantsBrain Health forCreatine
  20. Single-Dose Creatine Reduces Sleep Deprivation-Induced Deterioration in Cognitive Performance.
    Gordji-Nejad A; Matusch A; Hengstler L; Beer S; Kroll T; Klein S; Elmenhorst D; Bauer A; Drzezga A · Nutrients · 2026
    Randomized trial29 participantsBrain Health forCreatine
  21. Huperzine a in the treatment of Alzheimer's disease and vascular dementia: a meta-analysis.
    Xing SH; Zhu CX; Zhang R; An L · Evidence-based complementary and alternative medicine : eCAM · 2014
    Meta-analysis825 participants10 studies pooledBrain Health Cognitive Support forHuperzine
  22. [Clinical efficacy and safety of huperzine Alpha in treatment of mild to moderate Alzheimer disease, a placebo-controlled, double-blind, randomized trial].
    Zhang Z; Wang X; Chen Q; Shu L; Wang J; Shan G · Zhonghua yi xue za zhi · 2002
    Randomized trial202 participantsBrain Health Cognitive Support forHuperzine
  23. Huperzine A associated with improved early postoperative cognitive function after neurosurgery under general anesthesia: a randomized clinical trial.
    Zhang Z; Shen Y; Li J; Tang Y; Zhou P; Ying T; Mo R; Ru Z; Zhao G; Zhu J; Li S; Zhao H · International journal of surgery (London, England) · 2026
    Randomized trial123 participantsBrain Health Cognitive Support forHuperzine
  24. Treatment with Huperzine A improves cognition in vascular dementia patients.
    Xu ZQ; Liang XM; Juan-Wu; Zhang YF; Zhu CX; Jiang XJ · Cell biochemistry and biophysics · 2012
    Randomized trial78 participantsBrain Health forHuperzine
  25. Huperzine-A response to cognitive impairment and task switching deficits in patients with Alzheimer's disease.
    Gul A; Bakht J; Mehmood F · Journal of the Chinese Medical Association : JCMA · 2019
    Randomized trial100 participantsBrain Health forHuperzine
  26. 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
  27. 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
  28. 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
  29. 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
  30. 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
  31. [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
  32. 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
  33. Adjunctive huperzine A for cognitive deficits in schizophrenia: a systematic review and meta-analysis.
    Zheng W; Xiang YQ; Li XB; Ungvari GS; Chiu HF; Sun F; D'Arcy C; Meng X; Xiang YT · Human psychopharmacology · 2017
    Meta-analysis1,117 participants12 studies pooledCognitive Support forHuperzine
  34. [Drug evaluation of huperzine A in the treatment of senile memory disorders].
    Zhang RW; Tang XC; Han YY; Sang GW; Zhang YD; Ma YX; Zhang CL; Yang RM · Zhongguo yao li xue bao = Acta pharmacologica Sinica · 1992
    Randomized trial56 participantsCognitive Support forHuperzine
  35. 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
  36. 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
  37. 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
  38. 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
  39. 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
  40. Synergistic effects of creatine, carbs, protein on repeated sprint performance.
    Wang Y; Wei H; Cheng X; Chen Z · Scientific reports · 2026
    Randomized trial60 participantsEnergy forCreatine
  41. The Effects of Creatine Monohydrate Supplementation on Recovery from Eccentric Exercise-Induced Muscle Damage: A Double-Blind, Randomized, Placebo-Controlled Trial Considering Sex and Age Differences.
    Yamaguchi S; Inami T; Nishioka T; Morito A; Ishiyama K; Murayama M · Nutrients · 2025
    Randomized trial40 participantsEnergy forCreatine
  42. The Effect of Prior Creatine Intake for 28 Days on Accelerated Recovery from Exercise-Induced Muscle Damage: A Double-Blind, Randomized, Placebo-Controlled Trial.
    Yamaguchi S; Inami T; Ishida H; Morito A; Yamada S; Nagata N; Murayama M · Nutrients · 2024
    Randomized trial20 participantsEnergy forCreatine
  43. Creatine supplementation attenuates the rate of fatigue development during intermittent isometric exercise performed above end-test torque.
    Abdalla LHP; Broxterman RM; Greco CC; Denadai BS · Experimental physiology · 2021
    Randomized trial16 participantsEnergy forCreatine
  44. The effect of continuous low dose creatine supplementation on force, power, and total work.
    Burke DG; Silver S; Holt LE; Smith Palmer T; Culligan CJ; Chilibeck PD · International journal of sport nutrition and exercise metabolism · 2000
    Randomized trial41 participantsEnergy forCreatine
  45. 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
  46. 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
  47. 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
  48. Creatine in combination with resistance training and improvement in muscle strength: evaluation of a health claim pursuant to Article 13(5) of Regulation (EC) No 1924/2006.
    EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA) · EFSA journal. European Food Safety Authority · 2026
    Guideline / consensusFitness forCreatine
  49. Effect of creatine and weight training on muscle creatine and performance in vegetarians.
    Burke DG; Chilibeck PD; Parise G; Candow DG; Mahoney D; Tarnopolsky M · Medicine and science in sports and exercise · 2004
    Randomized trial42 participantsFitness forCreatine
  50. Long-term creatine intake is beneficial to muscle performance during resistance training.
    Vandenberghe K; Goris M; Van Hecke P; Van Leemputte M; Vangerven L; Hespel P · Journal of applied physiology (Bethesda, Md. : 1985) · 1998
    Randomized trial19 participantsFitness forCreatine
  51. Effects of Combined Versus Single Supplementation of Creatine, Beta-Alanine, and L-Citrulline During Short Sprint Interval Training on Basketball Players' Performance: A Double-Blind Randomized Placebo-Controlled Trial.
    Li M; Sheykhlouvand M · International journal of sports physiology and performance · 2025
    Randomized trial48 participantsFitness forCreatine
  52. The Additive Effects of Creatine Supplementation and Exercise Training in an Aging Population: A Systematic Review of Randomized Controlled Trials.
    Stares A; Bains M · Journal of geriatric physical therapy (2001) · 2021
    Systematic review17 studies pooledFitness forCreatine
  53. Additive effects of beta-alanine and sodium bicarbonate on upper-body intermittent performance.
    Tobias G; Benatti FB; de Salles Painelli V; Roschel H; Gualano B; Sale C; Harris RC; Lancha AH; Artioli GG · Amino acids · 2013
    Randomized trial37 participantsFitness forSodium
  54. Sodium bicarbonate supplementation improves severe-intensity intermittent exercise under moderate acute hypoxic conditions.
    Deb SK; Gough LA; Sparks SA; McNaughton LR · European journal of applied physiology · 2018
    Randomized trial11 participantsFitness forSodium
  55. The effects of sodium bicarbonate ingestion on swimming interval performance in trained competitive swimmers.
    Gough LA; Newbury JW; Price M · European journal of applied physiology · 2023
    Randomized trial14 participantsFitness forSodium
  56. Taurine supplementation enhances anaerobic power in elite speed skaters: A double-blind, randomized, placebo-controlled, crossover study.
    Buzdağlı Y; Eyipınar CD; Öget F; Şıktar E; Forbes SC; Tekin A · Biology of sport · 2023
    Randomized trial30 participantsFitness forTaurine
  57. The effect of acute taurine ingestion on 3-km running performance in trained middle-distance runners.
    Balshaw TG; Bampouras TM; Barry TJ; Sparks SA · Amino acids · 2013
    Randomized trial8 participantsFitness forTaurine
  58. Effects of different doses of taurine supplementation on repeated-sprint performance after exhaustive exercise in a high temperature and humidity environment.
    Cheng X; Lin Y; Li Z · Frontiers in nutrition · 2026
    Randomized trial16 participantsFitness forTaurine
  59. Oral taurine improves critical power and severe-intensity exercise tolerance.
    Waldron M; Patterson SD; Jeffries O · Amino acids · 2020
    Randomized trial12 participantsFitness forTaurine
  60. Acute taurine supplementation enhances thermoregulation and endurance cycling performance in the heat.
    Page LK; Jeffries O; Waldron M · European journal of sport science · 2019
    Randomized trial11 participantsFitness forTaurine
  61. 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
  62. 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
  63. 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
  64. Effects of caffeine on mood and performance: a study of realistic consumption.
    Brice CF; Smith AP · Psychopharmacology · 2003
    Clinical trial24 participantsMental Focus forCaffeine
  65. 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
  66. 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
  67. 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
  68. 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
  69. 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
  70. 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
  71. Creatine target engagement with brain bioenergetics: a dose-ranging phosphorus-31 magnetic resonance spectroscopy study of adolescent females with SSRI-resistant depression.
    Kondo DG; Forrest LN; Shi X; Sung YH; Hellem TL; Huber RS; Renshaw PF · Amino acids · 2017
    Randomized trialMetabolism Boost forCreatine
  72. Creatine supplementation and glycemic control: a systematic review.
    Pinto CL; Botelho PB; Pimentel GD; Campos-Ferraz PL; Mota JF · Amino acids · 2017
    Systematic reviewMetabolism Boost forCreatine
  73. The effect of dietary creatine supplementation on skeletal muscle metabolism in congestive heart failure.
    Andrews R; Greenhaff P; Curtis S; Perry A; Cowley AJ · European heart journal · 1998
    Clinical trialMetabolism Boost forCreatine
  74. A comprehensive review of the physiology and evidence base to guide the use of ergogenic and medical supplements for enhanced cycling performance.
    Rowland A; Edwards S; Prieto-Bellver G; Menz B; Rowland A; Cornelisse E; Karapetis CS; Wallen MP; Hopkins AM · Journal of the International Society of Sports Nutrition · 2026
    Narrative reviewMetabolism Boost forCreatine
  75. Creatine Supplementation Beyond Athletics: Benefits of Different Types of Creatine for Women, Vegans, and Clinical Populations-A Narrative Review.
    Gutiérrez-Hellín J; Del Coso J; Franco-Andrés A; Gamonales JM; Espada MC; González-García J; López-Moreno M; Varillas-Delgado D · Nutrients · 2025
    Narrative reviewMetabolism Boost forCreatine
  76. Taurine supplementation as a therapeutic strategy for cellular senescence and chronic inflammation in long COVID: a systematic review and meta-analysis.
    Wang K; Ma CH; Khoramjoo M; Kung JY; Oudit GY · BMC infectious diseases · 2026
    Meta-analysis1,030 participants27 studies pooledMetabolism Boost forTaurine
  77. Effect of Long-Term Taurine Supplementation on the Lipid and Glycaemic Profile in Adults with Overweight or Obesity: A Systematic Review and Meta-Analysis.
    Sun Q; Wang J; Wang H; Yu H; Wan K; Ma F; Wang R · Nutrients · 2025
    Meta-analysis9 studies pooledMetabolism Boost forTaurine
  78. The effects of taurine supplementation on obesity, blood pressure and lipid profile: A meta-analysis of randomized controlled trials.
    Guan L; Miao P · European journal of pharmacology · 2021
    Meta-analysis12 studies pooledMetabolism Boost forTaurine
  79. Beneficial effects of taurine on serum lipids in overweight or obese non-diabetic subjects.
    Zhang M; Bi LF; Fang JH; Su XL; Da GL; Kuwamori T; Kagamimori S · Amino acids · 2005
    Randomized trial30 participantsMetabolism Boost forTaurine
  80. Use of skeletal muscle fiber composition to assess relationship between amino acid metabolism and insulin sensitivity.
    Magnusson TE; Blackwood SJ; Tischer D; Strmeň T; Pontén M; Edman S; Horwath O; Apró W; Moberg M; Chorell E; Katz A · European journal of endocrinology · 2025
    Cross-sectional study36 participantsMetabolism Boost forTaurine
  81. The effect of 6 days of alpha glycerylphosphorylcholine on isometric strength
    David Bellar, Nina R LeBlanc, Brian Campbell · Journal of the International Society of Sports Nutrition · 2015
    Randomized trial13 participantsMuscle Gain forAlpha-GPC
  82. Effects of Acute Ingestion of Caffeine Capsules on Muscle Strength and Muscle Endurance: A Systematic Review and Meta-Analysis.
    Wu W; Chen Z; Zhou H; Wang L; Li X; Lv Y; Sun T; Yu L · Nutrients · 2024
    Meta-analysis14 studies pooledMuscle Gain forCaffeine
  83. Acute caffeine intake improves muscular strength, power, and endurance performance, reversing the time-of-day effect regardless of muscle activation level in resistance-trained males: a randomized controlled trial.
    Montalvo-Alonso JJ; Del Val-Manzano M; Cerezo-Telléz E; Ferragut C; Valadés D; Rodríguez-Falces J; Pérez-López A · European journal of applied physiology · 2025
    Randomized trial13 participantsMuscle Gain forCaffeine
  84. Wake up and smell the coffee: caffeine supplementation and exercise performance-an umbrella review of 21 published meta-analyses.
    Grgic J; Grgic I; Pickering C; Schoenfeld BJ; Bishop DJ; Pedisic Z · British journal of sports medicine · 2020
    Systematic review21 studies pooledMuscle Gain forCaffeine
  85. Effects of caffeine intake on muscle strength and power: a systematic review and meta-analysis.
    Grgic J; Trexler ET; Lazinica B; Pedisic Z · Journal of the International Society of Sports Nutrition · 2018
    Meta-analysis20 studies pooledMuscle Gain forCaffeine
  86. Caffeine increases strength and power performance in resistance-trained females during early follicular phase.
    Norum M; Risvang LC; Bjørnsen T; Dimitriou L; Rønning PO; Bjørgen M; Raastad T · Scandinavian journal of medicine & science in sports · 2021
    Randomized trial15 participantsMuscle Gain forCaffeine
  87. The Effect of Creatine Supplementation on Resistance Training-Based Changes to Body Composition: A Systematic Review and Meta-analysis.
    Desai I; Wewege MA; Jones MD; Clifford BK; Pandit A; Kaakoush NO; Simar D; Hagstrom AD · Journal of strength and conditioning research · 2025
    Meta-analysis362 participants12 studies pooledMuscle Gain Weight Loss forCreatine
  88. Effects of Creatine Supplementation and Resistance Training on Muscle Strength Gains in Adults <50 Years of Age: A Systematic Review and Meta-Analysis.
    Wang Z; Qiu B; Li R; Han Y; Petersen C; Liu S; Zhang Y; Liu C; Candow DG; Del Coso J · Nutrients · 2024
    Meta-analysis509 participants23 studies pooledMuscle Gain forCreatine
  89. Comparative Effects of Dietary Protein, Creatine, and Omega-3 Supplementation on Muscle Strength, Endurance, and Recovery in Trained Athletes: A Systematic Review and Network Meta-Analysis.
    Wang Z; Qin G; Kim BM · Nutrients · 2026
    Meta-analysis1,211 participants35 studies pooledMuscle Gain forCreatine
  90. Effect of creatine supplementation during resistance training on lean tissue mass and muscular strength in older adults: a meta-analysis.
    Chilibeck PD; Kaviani M; Candow DG; Zello GA · Open access journal of sports medicine · 2020
    Meta-analysis721 participants22 studies pooledMuscle Gain forCreatine
  91. Creatine supplementation during resistance training in older adults-a meta-analysis.
    Devries MC; Phillips SM · Medicine and science in sports and exercise · 2014
    Meta-analysis357 participantsMuscle Gain forCreatine
  92. Treatment of dementia with neurotransmission modulation.
    Doggrell SA; Evans S · Expert opinion on investigational drugs · 2004
    Narrative reviewProductivity Boost forAlpha-GPC
  93. Effects of caffeine on alertness.
    Zwyghuizen-Doorenbos A; Roehrs TA; Lipschutz L; Timms V; Roth T · Psychopharmacology · 1990
    Randomized trial24 participantsProductivity Boost forCaffeine
  94. 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
  95. 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
  96. 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
  97. 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
  98. Effect of Huperzine A on Cognitive Function and Perception of Effort during Exercise: A Randomized Double-Blind Crossover Trial.
    Wessinger CM; Inman CL; Weinstock J; Weiss EP · International journal of exercise science · 2025
    Randomized trial15 participantsProductivity Boost forHuperzine
  99. 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
  100. 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
  101. 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
  102. 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
  103. 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
  104. Changes in Fat Mass Following Creatine Supplementation and Resistance Training in Adults ≥50 Years of Age: A Meta-Analysis.
    Forbes SC; Candow DG; Krentz JR; Roberts MD; Young KC · Journal of functional morphology and kinesiology · 2021
    Meta-analysis609 participants19 studies pooledWeight Loss forCreatine
  105. Effects of creatine supplementation with and without exercise and diet intervention on body composition, cognitive function, and markers of health in middle-aged and older adults.
    Chun J; Liu Y; Kibler GL; Lee H; Babakhani K; Rhoades N; Bivins I; Ko J; Dickerson B; Gonzalez DE; Sowinski RJ; Rasmussen CJ; Kreider RB · Journal of the International Society of Sports Nutrition · 2026
    Randomized trial64 participantsWeight Loss forCreatine
  106. Creatine supplementation protocols with or without training interventions on body composition: a GRADE-assessed systematic review and dose-response meta-analysis.
    Pashayee-Khamene F; Heidari Z; Asbaghi O; Ashtary-Larky D; Goudarzi K; Forbes SC; Candow DG; Bagheri R; Ghanavati M; Dutheil F · Journal of the International Society of Sports Nutrition · 2024
    Meta-analysis3,655 participants143 studies pooledWeight Loss forCreatine
  107. Effects of Creatine Monohydrate Gummies on Performance and Body Composition in Female Beach Volleyball Athletes.
    Pereira F; Forbes SC; Romano V; Christopher P; Santana JC; Antonio J · Journal of functional morphology and kinesiology · 2026
    Randomized trial32 participantsWeight Loss forCreatine