VO2 Max Performance Fat Burner

VO2 Max Performance Fat Burner

Irwin Naturals4.3 (210 ratings)
Format:Softgel Quantity: 60 Softgel(s) · 30 servings
Goals
$28.99 $0.96 per serving

Product analysis

42 out of 100

VO2 Max Performance Fat Burner may help with alertness and attention through caffeine, while ashwagandha adds a more tentative connection to stress support. Undisclosed blend ingredients make it harder to judge the complete formula.

AI assessment of the formula, label and price. How scoring works

Nutrient Quality32

Several ingredient forms are named, but many others are missing. The information does not support a confident judgment of the quality of the full mix.

Ingredient Transparency62

Amounts are stated throughout, which helps you see how much is included. Many forms and the makeup of two mixtures remain undisclosed, limiting comparison with other products.

Value For Money39

The green tea component looks costly for the amount of EGCG, a key green tea compound. Value for most other ingredients remains uncertain, so that comparison cannot settle the value of the whole formula.

Customer Satisfaction65

Customer ratings are favorable across a moderate number of reviews. They give useful feedback on satisfaction without establishing health benefits.

Product Focus15

Alertness and attention have the clearest practical support, with more tentative support for stress and training. The wide range of purposes and incomplete blend details make its central focus less clear.

Format
Softgel
Container
60 Softgel(s)
Per serving
$0.96
Customer rating
4.3 · 210 ratings
Report analysis

Goals

Energy
Impact
High effect
C Ingredient FitC PathwaysA+ EvidenceA+ Formulation Logic
Vitamin B5 · 15 mgVitamin B12 · 50 mcgCaffeine · 75 mg
Study evidence
Caffeine Supportive 68 studies
Cognitive Support
Impact
High effect
C Ingredient FitC+ PathwaysA+ EvidenceA+ Formulation Logic
Vitamin B6 · 5 mgFolate · 340 mcg DFEVitamin B12 · 50 mcgGreen Tea · 270 mgAshwagandha · 300 mg
Study evidence
Folate Supportive 68 studies
Green Tea Supportive 32 studies
Vitamin B6 Supportive 17 studies
Longevity
Impact
High effect
C- Ingredient FitD PathwaysB+ EvidenceA+ Formulation Logic
Folate · 340 mcg DFEVitamin B12 · 50 mcgGreen Tea · 270 mg
Study evidence
Folate Supportive 16 studies
Green Tea Supportive 9 studies
Fitness
Impact
Moderate effect
F Ingredient FitF PathwaysA- EvidenceA+ Formulation Logic
Ashwagandha · 300 mgCaffeine · 75 mg
Study evidence
Caffeine Supportive 255 studies
Productivity Boost
Impact
Moderate effect
D+ Ingredient FitF PathwaysB EvidenceA+ Formulation Logic
Vitamin B12 · 50 mcgVitamin B12 · 50 mcgVitamin B6 · 5 mgCaffeine · 75 mg
Study evidence
Caffeine Supportive 108 studies
Muscle Gain
Impact
Moderate effect
F Ingredient FitD- PathwaysB+ EvidenceA+ Formulation Logic
Caffeine · 75 mg
Study evidence
Caffeine Supportive 31 studies

Ingredients

IngredientAmount per servingScore
Calories
15 Calorie(s)
Total Fat
1 Gram(s)
Total Carbohydrates
1 Gram(s)
Protein
1 Gram(s)
Niacin (Niacinamide)
10 mg
Vitamin B6 (Pyridoxine Hydrochloride)
5 mg
Folate
340 mcg DFE
Vitamin B12 (Methylcobalamin)
50 mcg
Pantothenic Acid (Calcium D-Pantothenate)
15 mg
Flaxseed Oil
850 mg
Medium Chain Triglyceride Oil
500 mg
KSM-66 Ashwagandha extract (Withanolides)
300 mg 85
Green Tea extract (EGCG, Polyphenols)
270 mg 61
Maca powder
250 mg
Schisandra extract
150 mg
Caffeine (Coffee)
75 mg 61
BioPerine Complex
3 mg
Women Women 18–50
Report overview
B- Composition And Label DisclosureA+ Composition And Label Disclosure
+3
The serving provides 300 mg of ashwagandha extract, with the whole product priced per serving. It declares 5% withanolides.
How this ingredient is rated

Composition and Label Disclosure70

The ashwagandha extract declares 5% withanolides.
Withanolide and Preparation Disclosure
The ashwagandha extract declares 5% withanolides.

Composition and Label Disclosure100

The serving amount and ashwagandha source are stated.
Individual Preparation Amount Disclosure
The label states 300 mg of ashwagandha extract per serving.

Commercial Price and Usability

A separate value conclusion is not available.
A+ Composition And Label DisclosureD- Composition And Label DisclosureF Commercial Price And Usability
A serving provides 270 mg of green tea extract. The cost per amount of EGCG is high. The stated concentration corresponds to 135 mg of EGCG. The label mentions 75 mg of caffeine, but total product caffeine is not established.
How this ingredient is rated

Composition and Label Disclosure100

The green tea extract states 50% EGCG, 98% polyphenols.
Declared Green Tea Marker Concentration
The green tea extract states 50% EGCG, 98% polyphenols.

Composition and Label Disclosure40

The label mentions 75 mg of caffeine, but total product caffeine is not established.
Whole-Product Caffeine Disclosure
The label mentions 75 mg of caffeine, but total product caffeine is not established.

Commercial Price and Usability25

The cost per amount of EGCG is high.
Cost per 200 mg Declared EGCG
The cost per amount of EGCG is high.
D- Active Ingredient Quality & BioavailabilityA Dose, Safety & Label TransparencyD- Value
Each serving provides 75 mg of caffeine per serving at a high cost per serving. No other listed stimulants were found. The caffeine source is unclear.
How this ingredient is rated

Active Ingredient Quality & Bioavailability40

The caffeine source and release details are unclear in the available information.
Advanced Bioavailability and Release Profiles
The caffeine source and release details are unclear in the available information.

Dose, Safety & Label Transparency92

The serving declares 75 mg of caffeine. No other listed stimulants were found.
Caffeine Dose Transparency
The total caffeine amount is stated as 75 mg per serving.
Dosage Efficacy and Safety Margin
Each serving provides 75 mg of caffeine.
Secondary Stimulant Disclosure and Risk
No other listed stimulants were found.

Value40

The cost per serving is high.
Price Per Serving vs. Collection Median
The cost per serving is high.
Report alternatives

Sources

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

  1. Acute and Repeated Ashwagandha Supplementation Improves Markers of Cognitive Function and Mood.
    Leonard M; Dickerson B; Estes L; Gonzalez DE; Jenkins V; Johnson S; Xing D; Yoo C; Ko J; Purpura M; Jäger R; Faries M; Kephart W; Sowinski R; Rasmussen CJ; Kreider RB · Nutrients · 2024
    Randomized trial59 participantsBrain Health Cognitive Support Energy forAshwagandha
  2. Effect of ashwagandha (Withania somnifera) extract with Sominone (Somin-On™) to improve memory in adults with mild cognitive impairment: A randomized, double-blind, placebo-controlled study.
    Rai HP; Mishra DN · Journal of psychopharmacology (Oxford, England) · 2025
    Randomized trial40 participantsBrain Health Cognitive Support Mental Focus forAshwagandha
  3. Efficacy of Withania somnifera supplementation on adult's cognition and mood.
    Remenapp A; Coyle K; Orange T; Lynch T; Hooper D; Hooper S; Conway K; Hausenblas HA · Journal of Ayurveda and integrative medicine · 2022
    Randomized trial60 participantsBrain Health Cognitive Support Productivity Boost forAshwagandha
  4. A clinical assessment of the therapeutic effects of Ashwagandha root extract on cognitive performance, sleep, and fatigue in children aged 6-12 years.
    Saxena A; Lopresti A; Sharif M; Elon N; Suri R; Langade DK · Frontiers in nutrition · 2026
    Randomized trial85 participantsBrain Health Mental Focus forAshwagandha
  5. Efficacy and Safety of Ashwagandha Root Extract on Cognitive Functions in Healthy, Stressed Adults: A Randomized, Double-Blind, Placebo-Controlled Study.
    Gopukumar K; Thanawala S; Somepalli V; Rao TSS; Thamatam VB; Chauhan S · Evidence-based complementary and alternative medicine : eCAM · 2022
    Randomized trial130 participantsBrain Health Stress Relief forAshwagandha
  6. B vitamins and prevention of cognitive decline and incident dementia: a systematic review and meta-analysis.
    Wang Z; Zhu W; Xing Y; Jia J; Tang Y · Nutrition reviews · 2022
    Meta-analysis46,175 participants95 studies pooledBrain Health Cognitive Support forFolate
  7. Folate and long-chain polyunsaturated fatty acid supplementation during pregnancy has long-term effects on the attention system of 8.5-y-old offspring: a randomized controlled trial.
    Catena A; Muñoz-Machicao JA; Torres-Espínola FJ; Martínez-Zaldívar C; Diaz-Piedra C; Gil A; Haile G; Györei E; Molloy AM; Decsi T; Koletzko B; Campoy C · The American journal of clinical nutrition · 2016
    Randomized trial136 participantsBrain Health Mental Focus forFolate
  8. Folic acid supplementation improves cognitive function in participants with cerebral small vascular disease-related cognitive impairment: a randomized controlled trial.
    Liu Y; Yu Z; Cai Z; Zhao L; Wang Y; Guo Y; Su X; Miao Y; Yi B; Wang Y; Zhang X · The journal of prevention of Alzheimer's disease · 2025
    Randomized trial220 participantsBrain Health forFolate
  9. Circulating folate concentrations and the risk of mild cognitive impairment: A prospective study on the older Chinese population without folic acid fortification.
    Fu J; Liu Q; Zhu Y; Sun C; Duan H; Huang L; Zhou D; Wang Z; Zhao J; Li Z; Ma F; Li W; Liu H; Zhang X; Chen Y; Wang G; Du Y; Huang G · European journal of neurology · 2022
    Cohort study3,974 participantsBrain Health forFolate
  10. Normal-But-Low Serum Folate Levels and the Risks for Cognitive Impairment.
    Jang S; Han JW; Shin J; Kim TH; Kwak KP; Kim K; Kim BJ; Kim SG; Kim JL; Kim TH; Moon SW; Park JY; Park JH; Byun S; Suh SW; Seo J; So Y; Ryu SH; Youn JC; Lee KH; Lee DY; Lee DW; Lee SB; Lee JJ; Lee JR; Jeong H; Jeong HG; Jhoo JH; Han K; Hong JW; Kim KW · Psychiatry investigation · 2020
    Cohort study3,910 participantsBrain Health forFolate
  11. 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
  12. 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 Cognitive Support Mental Focus forVitamin B12
  13. 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
  14. 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
  15. 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
  16. 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
  17. 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
  18. 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
  19. 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 Cognitive Support forVitamin B6
  20. 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