Product Image

Pre-Kaged Grape

Kaged
4.7
★ ★ ★ ★ ★
(224 ratings)
Vitamin B12 500 mcg
Niacin 30 mg
Vitamin B6 25 mg
Product Image
Score46

A pre-workout with useful B-vitamin disclosure but poor transparency across most performance matrices. The core performance formula is too opaque to assess confidently.

How scoring works
Quantity:20 Ounce(s) • (20 servings)
Goals:
Energy
Productivity Boost
Brain Health

Score 46

A pre-workout with useful B-vitamin disclosure but poor transparency across most performance matrices. The core performance formula is too opaque to assess confidently.

How scoring works
$39.99($1.99 per serving)
iHerb
$ 39.99
Report prices

Analysis

The grape powder discloses 30 mg niacinamide, 25 mg vitamin B6, 500 mcg methylcobalamin, and a 3.5 g muscle-fuel matrix. These B vitamins may support normal energy metabolism but do not establish pre-workout performance by themselves.

Most named performance matrices are listed without usable amounts or component detail. Pump, strength, hydration, and focus support therefore cannot be judged from the supplied label.

The formula is a poor fit for buyers who want transparent dosing or clear value across the main pre-workout ingredients. Repeated use also makes cumulative vitamin B6 exposure relevant.

Who is it for
  • Adults willing to verify the full pre-workout label
  • People specifically wanting a grape powder
  • Users who monitor total vitamin B6 intake
Best for
  • Methylcobalamin intake
  • Normal energy metabolism
  • Users already familiar with the full formula

Pros

  • Uses methylcobalamin
  • Discloses niacin and vitamin B6 amounts
  • States a 3.5 g muscle-fuel matrix
  • Powder format

Cons

  • Most performance matrices lack usable amounts
  • Pump and focus ingredients cannot be evaluated
  • Only 20 servings
  • Weak practical value

Warnings

  • Repeated 25 mg vitamin B6 intake may contribute to excessive cumulative exposure
  • Do not combine with other high-dose vitamin B6 products
  • Verify the full label for stimulants and other actives because the supplied matrix details are incomplete

Nutrient quality

51 Moderate impact

The disclosed B vitamins and muscle-fuel matrix provide some workout relevance. Hidden matrix contents prevent assessment of most doses, forms, balance, and safety, while vitamin B6 is high for repeated stacking.

Ingredient transparency

36 Lower impact

The three B vitamins have clear amounts, but nearly all performance matrices lack usable component information. Missing active doses make serving effectiveness and safety impossible to judge with confidence.

Customer satisfaction

72 High impact

The very strong average rating has a moderate review base. No review excerpts describe tolerance, effectiveness, or repeated complaints, so those experiences remain uncertain.

Value for money

31 Situational impact

A premium serving cost is poorly supported because most performance doses are hidden. The disclosed B vitamins and muscle-fuel matrix cannot establish competitive value for the whole formula.

Report analysis

Goals

Energy
Energy
Impact
High effect
B+ Goal FitB Strength of SupportB- CoverageC Formula Quality
Vitamin B12 · 500 mcg

Methylcobalamin and a substantial muscle-fuel matrix provide credible links to workout energy. The label also targets pump, strength, hydration, and focus pathways.

Most of those matrices do not disclose their internal ingredients or active amounts in the supplied data. The apparent breadth is therefore much easier to see than the true dosing depth.

Study evidence
Vitamin B12 Disputed 14 studies
Productivity Boost
Productivity Boost
Impact
Moderate effect
B- Goal FitC Strength of SupportD CoverageD Formula Quality
Vitamin B12 · 500 mcgVitamin B12 · 500 mcgVitamin B6 · 25 mg

Methylcobalamin and vitamin B6 support energy metabolism and neurotransmitter production. Their role is most meaningful when low nutrient status contributes to fatigue or poor concentration.

The broader powder is built mainly for training, and the supplied details do not identify the contents or amounts in its neuro-focus matrix. That missing disclosure prevents a clear judgment of any added focus support beyond the vitamins.

Study evidence
Vitamin B12 Supportive 15 studies
Vitamin B12 No effect 17 studies
Vitamin B6 Disputed 6 studies
Brain Health
Brain Health
Impact
Moderate effect
C- Goal FitC- Strength of SupportD CoverageF Formula Quality
Vitamin B12 · 500 mcgVitamin B6 · 25 mg

Methylcobalamin and vitamin B6 support neural metabolism, but the pre-workout is not primarily a brain-health product. Its claimed neuro-focus ingredients are hidden in undisclosed blends.

The two vitamins have meaningful amounts, while other cognitive doses cannot be assessed. Multiple zero-amount blends sharply reduce transparency and confidence.

Study evidence
Vitamin B12 Supportive 74 studies
Vitamin B6 Supportive 29 studies

Ingredients

IngredientAmount per serving
Calories
20 Calorie(s)
Total Carbohydrates
4 Gram(s)
Niacin (Niacinamide)
 30 mg
Vitamin B6 (Pyridoxine Hydrochloride)
 25 mg
Vitamin B12 (Methylcobalamin)
 500 mcg
Sodium
50 mg
Pump
0 NP
Muscle Fuel Matrix
3.5 Gram(s)
Anabolic Activator
0 NP
Strength & Power Matrix
0 NP
Hydrate & Defend
0 NP
Neuro-Focus Matrix
0 NP
Adults 18–50
Report overview
Vitamin B12 (Methylcobalamin) · 500 mcg OverallScore71
A- Active Ingredient Quality & BioavailabilityB Dose, Safety & Label TransparencyF Value

Methylcobalamin supplies a bioactive B12 form at a moderate supplemental dose. The drink powder is designed primarily as a broader workout formula, so it lacks dedicated mucosal absorption support. Its high serving cost makes it poor value when judged only by B12 delivery.

View ingredientView products
Niacin (Niacinamide) · 30 mg OverallScore65
C+ Active Ingredient Quality & BioavailabilityA- Dose, Safety & Label TransparencyF Value

The pre-workout includes a practical 30 mg amount of clearly labeled niacinamide. That form has low flush potential but does not provide the direct NAD+ support expected from advanced energy-focused B3 ingredients. The expensive serving makes niacin-specific value poor.

View ingredientView products
Vitamin B6 (Pyridoxine Hydrochloride) · 25 mg OverallScore62
D+ Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyF Value

Pyridoxine hydrochloride is used without a listed riboflavin cofactor. The 25 mg dose lies within the preferred range for metabolic and neurological support. The one scoop serving is practical, while the serving cost is high for a pyridoxine hydrochloride formula.

View ingredientView products
Loading alternative details
82 Performance

BioActive Vitamin B

Terry Naturally
<p>Active forms of B6, B12, and folate make a compact, well-targeted B-vitamin formula. Its ingredient forms and goal coverage compare favorably because the original has important disclosure gaps, although its concentrated doses are more appropriate for deliberate use than casual stacking.</p>
81 Performance

Activated Homocysteine

Swanson
<p>Active B6, methylfolate, methylcobalamin, and betaine create a focused homocysteine-support formula. Its ingredient forms and goal coverage compare favorably because the original has important disclosure gaps, although folic acid is less active than methylfolate.</p>
78 Performance

Methylfolate B Complex

Codeage
<p>Active riboflavin, B6, methylfolate, and methylcobalamin create a high-quality methylation-focused complex. Its ingredient forms and goal coverage compare favorably because the original has important disclosure gaps, although its concentrated doses are more appropriate for deliberate use than casual stacking.</p>
81 Budget

B-Complex with Folic Acid plus Vitamin C

Nature's Bounty
<p>The broad B-complex provides practical daily coverage at a very low serving cost. Its lower serving cost improves value compared with the original, although cyanocobalamin is a conventional B12 form.</p>
81 Budget

Tri-B

Carlson
<p>B6, folate, and B12 create a simple cardiovascular-support combination with a very long supply. Its lower serving cost improves value compared with the original, although cyanocobalamin is a conventional B12 form.</p>
81 Budget

Folic Acid B6 & B12

Mason Natural
<p>A simple B6, folate, and B12 combination offers inexpensive nutritional coverage. Its lower serving cost improves value compared with the original, although the high pyridoxine amount is less suitable for long-term daily use.</p>
78 Value

Homocysteine Resist

Life Extension
<p>Active B6, methylfolate, and methylcobalamin create a potent methylation-focused formula. The balance of ingredient quality, goal fit, and serving cost is favorable versus the original, although its concentrated doses are more appropriate for deliberate use than casual stacking.</p>
79 Value

Homocysteine Modulators

Solgar
<p>Betaine and a small active B6 addition give this homocysteine formula some purpose, but most vitamins use older forms. The balance of ingredient quality, goal fit, and serving cost is favorable versus the original, although the high pyridoxine amount is less suitable for long-term daily use.</p>
78 Value

Homocysteine Defense

Source Naturals
<p>A meaningful betaine amount supports the formula’s homocysteine focus, but the vitamins use older forms. The balance of ingredient quality, goal fit, and serving cost is favorable versus the original, although the high pyridoxine amount is less suitable for long-term daily use.</p>
Report alternatives

Sources

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

  1. Effects of Vitamin B12 Supplementation on Cognitive Function, Depressive Symptoms, and Fatigue: A Systematic Review, Meta-Analysis, and Meta-Regression.
    Markun S; Gravestock I; Jäger L; Rosemann T; Pichierri G; Burgstaller JM · Nutrients · 2021
    Meta-analysis6,276 participants16 studies pooledEnergy forVitamin B12
  2. Cobalamin deficiency: clinical picture and radiological findings.
    Briani C; Dalla Torre C; Citton V; Manara R; Pompanin S; Binotto G; Adami F · Nutrients · 2014
    Narrative reviewEnergy forVitamin B12
  3. Vitamin B12 Supplementation: Is More Always Better?
    Yepes-Calderón M; Doorenbos CSE; Stegmann ME; Touw DJ; Harmsen HJM; Heiner-Fokkema MR; van Spronsen FJ; Corpeleijn E; Bakker SJL · Nutrients · 2026
    Narrative reviewEnergy forVitamin B12
  4. Relationship between vitamin B12 levels and motor development: A systematic review.
    Dos Santos MERA; da Silva KG; da Silva Souza AP; da Silva ABJ; da Silva RF; da Silva EHA; de Souza SL; Barros WMA · Clinical nutrition ESPEN · 2024
    Systematic review1,559 participants8 studies pooledBrain Health forVitamin B12
  5. Vitamin B12 supplementation improves cognitive function in middle aged and elderly patients with cognitive impairment.
    Zhou L; Bai X; Huang J; Tan Y; Yang Q · Nutricion hospitalaria · 2023
    Randomized trial115 participantsBrain Health forVitamin B12
  6. Structural and Functional Brain Changes Associated with Vitamin B12 Deficiency using Magnetic Resonance Imaging: A Systematic Review and Meta-analysis.
    Alghamdi A · Current medical imaging · 2023
    Meta-analysis12 studies pooledBrain Health forVitamin B12
  7. Maternal vitamin B12, vitamin D, and folic acid status during pregnancy and child neurodevelopment: a systematic review.
    Franco L; de Andrade CVF; Margini LV; Sousa N · Frontiers in neuroscience · 2026
    Systematic review22 studies pooledBrain Health forVitamin B12
  8. Higher vitamin B12 from mid- to late life is related to slower rates of cognitive decline.
    Marino FR; Rogers G; Miller JW; Selhub J; Mez J; Crane PK; Mukherjee S; Saykin AJ; Hohman TJ; Trittschuh EH; Au R; Jacques PF; Hwang PH · Alzheimer's & dementia : the journal of the Alzheimer's Association · 2025
    Cohort study1,994 participantsBrain Health forVitamin B12
  9. Vitamin B12, B6, or Folate and Cognitive Function in Community-Dwelling Older Adults: A Systematic Review and Meta-Analysis.
    Zhang C; Luo J; Yuan C; Ding D · Journal of Alzheimer's disease : JAD · 2021
    Meta-analysis21 studies pooledBrain Health forVitamin B6
  10. Relationship between serum pyridoxal 5'-phosphate concentration and cognitive function in older Japanese.
    Itoh K; Kuwabara A; Otsuka R; Sugimoto T; Sakurai T; Niida S; Ao M; Tanaka K; Takenaka S; Kanouchi H · Journal of clinical biochemistry and nutrition · 2025
    Cross-sectional study266 participantsBrain Health forVitamin B6
  11. A randomized, controlled trial to evaluate the efficacy of pyridoxine and ascorbic acid on cognitive function and quality of life in post-menopausal women.
    Dhivya K; Sarumathy S; Manigandan G · Naunyn-Schmiedeberg's archives of pharmacology · 2025
    Randomized trial180 participantsBrain Health forVitamin B6
  12. Lower Plasma Vitamin B-6 is Associated with 2-Year Cognitive Decline in the Boston Puerto Rican Health Study.
    Palacios N; Scott T; Sahasrabudhe N; Gao X; Tucker KL · The Journal of nutrition · 2020
    Cohort study949 participantsBrain Health forVitamin B6
  13. Are Dietary Supplements and Nutraceuticals Effective for Musculoskeletal Health and Cognitive Function? A Scoping Review.
    Iolascon G; Gimigliano R; Bianco M; De Sire A; Moretti A; Giusti A; Malavolta N; Migliaccio S; Migliore A; Napoli N; Piscitelli P; Resmini G; Tarantino U; Gimigliano F · The journal of nutrition, health & aging · 2017
    Scoping review12 studies pooledBrain Health forVitamin B6
  14. A new perspective on vitamin B12 deficiency in rheumatology: a case-based review.
    Dułak NA; Rytlewska M; Jaskólska M; Chmielewski M · Rheumatology international · 2024
    Case series3 participantsEnergy forVitamin B12
  15. Patients' experiences with methylcobalamin injections in amyotrophic lateral sclerosis.
    Zubair AS; Saab L; Scharer K; Khokhar B · Brain circulation · 2024
    Qualitative study5 participantsEnergy forVitamin B12
  16. Vitamin B12 Deficiency: Common Questions and Answers.
    Patel H; McGuirk R · American family physician · 2025
    Narrative reviewEnergy forVitamin B12
  17. Effects of Folic Acid and Vitamin B12, Alone and in Combination on Cognitive Function and Inflammatory Factors in the Elderly with Mild Cognitive Impairment: A Single-blind Experimental Design.
    Ma F; Zhou X; Li Q; Zhao J; Song A; An P; Du Y; Xu W; Huang G · Current Alzheimer research · 2020
    Randomized trial240 participantsProductivity Boost forVitamin B12
  18. Effects of Physical Activity and Micronutrients on Cognitive Performance in Children Aged 6 to 11 Years: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.
    Meli AM; Ali A; Mhd Jalil AM; Mohd Yusof H; Tan MMC · Medicina (Kaunas, Lithuania) · 2022
    Meta-analysisProductivity Boost forVitamin B12
  19. Cognitive function in an elderly population: interaction between vitamin B12 status, depression, and apolipoprotein E ε4: the Hordaland Homocysteine Study.
    Vogiatzoglou A; Smith AD; Nurk E; Drevon CA; Ueland PM; Vollset SE; Nygaard HA; Engedal K; Tell GS; Refsum H · Psychosomatic medicine · 2013
    Cross-sectional study1,935 participantsProductivity Boost forVitamin B12
  20. Cognitive profile and inflammatory markers in children and adolescents with specific learning disorder: a cross-sectional study.
    Balatacı U; Ay B · Frontiers in pediatrics · 2026
    Case-control study108 participantsProductivity Boost forVitamin B12
  21. Association between vitamin B12 levels and cognitive impairment in older adults.
    Aguilar-Navarro SG; Carbajal-Silva JC; Palacios-Hernández MGI; Gutiérrez-Gutierrez LA; Ávila-Funes JA; Mimenza-Alvarado AJ · Gaceta medica de Mexico · 2023
    Cross-sectional study241 participantsProductivity Boost forVitamin B12
  22. Effects of vitamin B12 on performance and circadian rhythm in normal subjects.
    Mayer G; Kröger M; Meier-Ewert K · Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 1997
    Randomized trial20 participantsProductivity Boost forVitamin B12
  23. Prenatal vitamin B12 status and cognitive functioning in children at 4 years of age: The ECLIPSES Study.
    Cruz-Rodríguez J; Canals-Sans J; Hernández-Martínez C; Voltas-Moreso N; Arija V · Maternal & child nutrition · 2023
    Cohort study249 participantsProductivity Boost forVitamin B12
  24. Dietary intakes and biomarker patterns of folate, vitamin B6, and vitamin B12 can be associated with cognitive impairment by hypermethylation of redox-related genes NUDT15 and TXNRD1.
    An Y; Feng L; Zhang X; Wang Y; Wang Y; Tao L; Qin Z; Xiao R · Clinical epigenetics · 2020
    Cohort study2,533 participantsProductivity Boost forVitamin B12
  25. Homocysteine, folate, and vitamins B6 and B12 blood levels in relation to cognitive performance: the Maine-Syracuse study.
    Elias MF; Robbins MA; Budge MM; Elias PK; Brennan SL; Johnston C; Nagy Z; Bates CJ · Psychosomatic medicine · 2008
    Cross-sectional study812 participantsProductivity Boost forVitamin B12
  26. Vitamin B6, B9, and B12 Intakes and Cognitive Performance in Elders: National Health and Nutrition Examination Survey, 2011-2014.
    Xu H; Wang S; Gao F; Li C · Neuropsychiatric disease and treatment · 2022
    Cross-sectional study2,421 participantsProductivity Boost forVitamin B6
  27. Effect of megavitamin treatment on mental performance and plasma vitamin B6 concentrations in mentally retarded young adults.
    Coburn SP; Schaltenbrand WE; Mahuren JD; Clausman RJ; Townsend D · The American journal of clinical nutrition · 1983
    Non-randomized trialProductivity Boost forVitamin B6
  28. Identifying Key Predictors of Cognitive Dysfunction in Older People Using Supervised Machine Learning Techniques: Observational Study.
    Rankin D; Black M; Flanagan B; Hughes CF; Moore A; Hoey L; Wallace J; Gill C; Carlin P; Molloy AM; Cunningham C; McNulty H · JMIR medical informatics · 2024
    Cohort studyProductivity Boost forVitamin B6
  29. Inappropriate nutrients intake is associated with lower functional status and inferior quality of life in older adults with depression.
    Guligowska A; Pigłowska M; Fife E; Kostka J; Sołtysik BK; Kroc Ł; Kostka T · Clinical interventions in aging · 2017
    Case-control study49 participantsProductivity Boost forVitamin B6
  30. A nutritional blend of taurine, vitamins B6, B9, and B12 improves motivated behaviors in healthy adults-a double-blinded randomized clinical trial.
    Anlacan VM; Jamora RDG; Krattinger LF; De Longis E; Hartweg M; Steinmann M; Trovò L · Frontiers in nutrition · 2026
    Randomized trial44 participantsProductivity Boost forVitamin B6