Guarana 500 mg

Guarana 500 mg

Swanson Premium Brand4.6 (1,417 ratings)
Format:Capsule Quantity: 100 Capsule(s) · 100 servings
Goals
$11.59 $0.11 per serving

Product analysis

50 out of 100

Guarana 500 mg offers a focused guarana supplement that appears well aligned with its intended uses. Its unspecified preparation makes direct comparisons with other guarana options difficult.

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

Nutrient Quality20

The guarana preparation is unspecified. That prevents a confident comparison of ingredient quality.

Ingredient Transparency63

The guarana amount is listed, while its preparation is not. The amount is therefore easier to compare than the ingredient itself.

Value For Money40

Value cannot be judged confidently from the available information. The stated amount alone does not establish affordability.

Customer Satisfaction82

Customer feedback is positive across a substantial number of ratings. Reviews reflect satisfaction rather than confirming effectiveness.

Product Focus74

The single-ingredient formula has a clear focus. Its alignment with the intended uses appears encouraging.

Format
Capsule
Container
100 Capsule(s)
Per serving
$0.11
Customer rating
4.6 · 1,417 ratings
Report analysis

Goals

Impact
High effect
A+ Ingredient FitD- PathwaysB- EvidenceA+ Formulation Logic

Guarana has limited acute alertness findings for a particular standardized extract. This product's declared guarana mass does not establish that preparation or its caffeine content. Although the saved result recognizes an alertness contribution, the supplied context does not support transferring the extract's findings to arbitrary powders or extracts, or inferring a stimulant dose from plant mass.

How this product is rated for Energy

Ingredient fit97

The recognized ingredient is focused on its evaluated role, while the product is linked to several goals.
Goal fit
The recognized ingredient is focused on its evaluated role, while the product is linked to several goals.
Dose adequacy
The recognized amount reaches the saved reference; this does not establish an optimal dose, greater benefit or safety at higher exposure.

Pathways45

Alertness reaches the saved coverage threshold; other energy areas receive no contribution.
Depth
The recognized contribution is concentrated in alertness rather than cellular energy production or exercise capacity.
Breadth
Alertness reaches the saved coverage threshold; other energy areas receive no contribution.

Evidence73

Guarana drives the saved evidence finding, but the supplied scientific context limits transfer from a particular standardized extract.
Evidence strength
Guarana drives the saved evidence finding, but the supplied scientific context limits transfer from a particular standardized extract.
Studied preparation
The saved result recognizes the preparation, while the supplied context does not establish equivalence to the standardized extract studied.

Formulation logic100

Recognized ingredients have no missing required partners, and no evaluated conflict was triggered. All meet the saved minimum amount threshold.
Partner coverage
Recognized ingredients work independently or have their required partners; no added combination benefit is established.
Conflicts
No configured ingredient conflict was triggered; this covers only the combinations evaluated.
Effective doses
All recognized ingredients meet the saved minimum amount threshold; this is not proof of a clinical energy response.
Study evidence
Guarana No effect 8 studies
Cognitive Support
Impact
High effect
A+ Ingredient FitC PathwaysB EvidenceA+ Formulation Logic

Guarana is a botanical source of caffeine and is linked to alertness in the saved findings. Its declared 500 mg botanical amount does not establish how much caffeine the serving supplies. Because standardization and outcomes vary, the supplied context does not support a predictable stimulation or cognitive benefit from that plant mass alone.

How this product is rated for Cognitive Support

Ingredient fit97

Guarana provides the saved cognitive connection, but its botanical amount does not establish a caffeine exposure.
Goal fit
Guarana supplies the saved alertness connection, although its caffeine content is unresolved.
Dose adequacy
The botanical amount contributes to the saved finding, but cannot be treated as a caffeine dose.

Pathways60

The saved findings emphasize adenosine-blocking alertness. This functional connection does not establish broad cognitive improvement.
Depth
The strongest saved finding concerns adenosine-blocking alertness, which does not by itself establish improved cognitive performance.
Breadth
The saved coverage is concentrated in a single cognitive-related function.

Evidence75

Guarana anchors the saved evidence finding. Its contribution remains limited by the supplied scientific context.
Evidence strength
Guarana leads the saved evidence finding, but the supplied population and outcome limitations still apply.
Studied preparation
The saved finding accepts the credited preparations as studied; this does not override the supplied limits on cognitive benefit.

Formulation logic100

The credited ingredients retain their individual contributions and no evaluated conflict was triggered.
Partner coverage
The credited ingredients retain their individual contributions without a missing required partner.
Conflicts
No evaluated ingredient conflict was triggered by the supplied facts.
Effective doses
The credited ingredients meet the saved amount threshold; that inclusion threshold is not a clinically proven cognitive dose.
Study evidence
Guarana Supportive 11 studies

Ingredients

IngredientAmount per servingScore
Guarana
500 mg 20
Adults 18–50
Report overview
Guarana · 500 mg OverallScore20
D- Composition And Label DisclosureF Composition And Label Disclosure
The serving provides 500 mg of guarana. Its caffeine content is not recorded, which limits comparison of stimulant amounts.
How this ingredient is rated

Composition and Label Disclosure40

The saved facts identify guarana but do not give a preparation ratio or marker percentage.
Marker and Preparation Disclosure
Guarana is identified, but no ratio or marker percentage is recorded.

Composition and Label Disclosure0

The amount of caffeine from the guarana is not recorded.
Amount and Label Disclosure
Neither a caffeine percentage nor a caffeine amount is available in the saved facts.

Commercial Price and Usability

No ingredient-specific price assessment is available.
Report alternatives

Sources

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

  1. Cognitive effects of guarana supplementation with maximal intensity cycling.
    Gurney T; Bradley N; Izquierdo D; Ronca F · The British journal of nutrition · 2023
    Randomized trial25 participantsCognitive Support forGuarana
  2. Cognitive Performance Enhancement Induced by Caffeine, Carbohydrate and Guarana Mouth Rinsing during Submaximal Exercise.
    Pomportes L; Brisswalter J; Casini L; Hays A; Davranche K · Nutrients · 2018
    Randomized trial24 participantsCognitive Support forGuarana
  3. Improved cognitive performance in human volunteers following administration of guarana (Paullinia cupana) extract: comparison and interaction with Panax ginseng.
    Kennedy DO; Haskell CF; Wesnes KA; Scholey AB · Pharmacology, biochemistry, and behavior · 2005
    Non-randomized trial28 participantsCognitive Support forGuarana
  4. The effect of plant active substances on cognitive function in healthy older adults: a systematic review and network meta-analysis of randomized controlled trials.
    Feng X; Fan S; Wei F · Frontiers in pharmacology · 2026
    Meta-analysis1,861 participants25 studies pooledCognitive Support forGuarana
  5. Effect of Guarana (Paullinia cupana) on Cognitive Performance: A Systematic Review and Meta-Analysis.
    Hack B; Penna EM; Talik T; Chandrashekhar R; Millard-Stafford M · Nutrients · 2023
    Meta-analysis328 participants8 studies pooledCognitive Support forGuarana
  6. Dietary supplements and fatigue in patients with breast cancer: a systematic review.
    Pereira PTVT; Reis AD; Diniz RR; Lima FA; Leite RD; da Silva MCP; Guerra RNM; de Moraes Vieira ÉB; Garcia JBS · Breast cancer research and treatment · 2019
    Systematic review932 participants8 studies pooledEnergy forGuarana
  7. Purified dry extract of Paullinia cupana (guaraná) (PC-18) for chemotherapy-related fatigue in patients with solid tumors: an early discontinuation study.
    del Giglio AB; Cubero Dde I; Lerner TG; Guariento RT; de Azevedo RG; Paiva H; Goldman C; Carelli B; Cruz FM; Schindler F; Pianowski L; de Matos LL; del Giglio A · Journal of dietary supplements · 2014
    Randomized trial40 participantsEnergy forGuarana
  8. Placebo-Controlled, Double-Blind, Randomized Study of a Dry Guarana Extract in Patients with Head and Neck Tumors Undergoing Chemoradiotherapy: Effects on Fatigue and Quality of Life.
    Martins SPDS; Ferreira CL; Del Giglio A · Journal of dietary supplements · 2019
    Randomized trial60 participantsEnergy forGuarana
  9. Effects of Acute Guarana (Paullinia cupana) Ingestion on Mental Performance and Vagal Modulation Compared to a Low Dose of Caffeine.
    Talik TN; Penna EM; Hack BP; Harp A; Millard-Stafford M · Nutrients · 2024
    Randomized trial20 participantsEnergy forGuarana
  10. Effectiveness of guaraná (Paullinia cupana) for postradiation fatigue and depression: results of a pilot double-blind randomized study.
    da Costa Miranda V; Trufelli DC; Santos J; Campos MP; Nobuo M; da Costa Miranda M; Schlinder F; Riechelmann R; del Giglio A · Journal of alternative and complementary medicine (New York, N.Y.) · 2009
    Randomized trial36 participantsEnergy forGuarana