$11.96 $0.11 per serving
Product analysis
B-Complex '100' may help fill B-vitamin gaps that affect normal energy use and blood-cell formation.
AI assessment of the formula, label and price. How scoring works
Nutrient Quality61
Several vitamin forms are well identified, with favorable B5 and reasonable thiamin forms. Plain riboflavin is less favorable, while the quality of some other ingredients remains uncertain.
Ingredient Transparency74
All ingredient amounts and most forms are stated. Folate and inositol forms and the proportions of the B5 mixture are not fully described.
Value For Money59
Value varies across the B vitamins, with favorable riboflavin and B6 costs but limited value from B5 and choline. Value for several other nutrients remains uncertain.
Customer Satisfaction93
Customer ratings are very positive across a very large review base. The many reviews provide a broad view of satisfaction without establishing health benefits.
Product Focus70
The clearest purpose is filling B-vitamin gaps, with energy and heart-related roles that do not imply extra benefits when intake is adequate. Vitamin B6 is high at 100 mg per serving, which raises a dose-related concern.
- Format
Capsule - Container
- 100 Capsule(s)
- Per serving
- $0.11
- Also available
B-Complex '50'$25.87- Customer rating
- 4.7 · 30,303 ratings
Goals
Impact
High effect
Vitamin B5 · 100 mgRiboflavin · 100 mgThiamin · 100 mgVitamin B12 · 100 mcg
B vitamins help fill nutritional gaps that can cause tiredness and fatigue. Riboflavin, niacin and pantothenic acid contribute to these normal nutritional functions; B12, B6 and folate also matter where deficiency affects blood-cell production. Larger amounts do not establish extra energy when intake is adequate.
How this product is rated for Energy
Ingredient fit87
Riboflavin and the other B vitamins offer a relevant nutritional or fatigue-related role, with declared amounts reaching the saved amount comparison.
Goal fit
Riboflavin and the other B vitamins provide the relevant contribution; the product's other linked uses also influence its focus on energy.
Dose adequacy
The declared amount reaches the saved comparison; exceeding nutritional adequacy does not establish greater energy benefit.
Pathways0
No contribution was recorded for the configured energy pathways; nutritional deficiency-related fatigue remains a separate role.
Depth
No contribution was recorded for the configured energy pathways; nutritional deficiency-related fatigue remains a separate role.
Breadth
None of the configured alertness, exercise-energy or stress-fatigue pathways received coverage.
Evidence78
Vitamin B2 (Riboflavin) leads the saved evidence finding, while the relevant nutritional benefit remains conditional on low intake or deficiency.
Evidence strength
Vitamin B2 (Riboflavin) leads the saved evidence finding, while the relevant nutritional benefit remains conditional on low intake or deficiency.
Studied preparation
The declared nutrient preparations are accepted in the saved finding; this does not show that the complete product was tested for fatigue.
Formulation logic100
The included ingredients require no additional partner in the saved findings, and the supplied checks identify no matching conflict.
Partner coverage
The included ingredients can contribute without an additional partner in the saved findings.
Conflicts
No matching conflict was identified by the supplied checks.
Effective doses
The included ingredients pass the saved minimum amount check; this threshold does not prove fatigue relief.
Vitamin B5 Not classified
No linked studies yet.
Impact
Highest effect
Folate · 666 mcg DFEVitamin B12 · 100 mcg
B vitamins supply nutrients used in normal energy metabolism, blood formation and related nutrient processes. Folate and B12 add nutritional value when intake falls short, without establishing greater energy or health benefits when intake is adequate. Vitamin B6 is supplied at 100 mg per serving, an amount flagged by the saved conflict check for high-dose concern.
How this product is rated for Everyday Health
Ingredient fit88
Vitamin B9 (Folate) and the other relevant nutrients provide the main connection to general health. Additional actives make the formula less focused on this goal.
Goal fit
Relevant nutrients contribute to general health, alongside other actives with less direct support for this goal.
Dose adequacy
Most relevant amounts reach the saved comparison endpoints, with some smaller contributions.
Pathways80
The strongest area is energy metabolism cofactors. Contributions also reach the saved coverage level across energy metabolism cofactors, one-carbon metabolism and blood formation.
Depth
The strongest supported area is energy metabolism cofactors, through the relevant nutrient contributions.
Breadth
The supported areas reaching the saved coverage level are energy metabolism cofactors, one-carbon metabolism and blood formation.
Evidence82
Vitamin B9 (Folate) provides the strongest supported contribution. The supplied context limits routine expectations to filling nutritional gaps rather than improving outcomes in adequately nourished adults.
Evidence strength
Vitamin B9 (Folate) provides the strongest supported contribution here; usefulness remains conditional on the relevant nutritional or population context.
Studied preparation
The relevant preparations match those recognized by the saved findings; this does not establish superiority of a form or delivery method.
Formulation logic93
The relevant ingredients can contribute independently, but the high vitamin B6 amount raises the supplied conflict concern.
Partner coverage
The relevant ingredients can contribute independently or have their required partners present; no extra combination benefit is established.
Conflicts
Vitamin B6 at 100 mg per serving triggers the high-dose concern in the supplied conflict check.
Effective doses
All ingredients retained for contribution meet the saved amount threshold; that threshold does not prove a clinical benefit.
Impact
High effect
Biotin · 100 mcgNiacin · 100 mgVitamin B12 · 100 mcgRiboflavin · 100 mgThiamin · 100 mgVitamin B5 · 100 mgVitamin B6 · 100 mg
B vitamins help the body use carbohydrate, fat and protein through their normal cofactor roles. Those functions do not establish that extra vitamins raise energy expenditure when intake is adequate. Thiamin, riboflavin, niacin and B6 reach substantial reference amounts in the saved comparison, but their normal roles do not establish thermogenesis. The recorded ingredient coverage does not identify a direct route to greater calorie expenditure or sustained weight loss.
How this product is rated for Metabolism Support
Ingredient fit81
The ingredients receive recognition for their connection and amounts in the saved findings. Normal nutrient functions and comparison amounts do not establish a metabolic-rate increase.
Goal fit
Recognised ingredients share this formula with other actives, giving it a broader focus than metabolic rate alone.
Dose adequacy
The counted ingredients provide partial reference amounts overall; those comparisons do not establish proven thermogenic doses.
Pathways0
No evaluated route to increased calorie expenditure receives recorded ingredient coverage.
Depth
No evaluated route to increased calorie expenditure receives recorded ingredient coverage.
Breadth
None of the evaluated routes has substantial recorded coverage, so broad support for increased energy expenditure is absent.
Evidence100
Vitamin B1 (Thiamin) leads the recorded evidence finding, but its normal metabolic role or other study outcomes do not establish thermogenesis.
Evidence strength
Vitamin B1 (Thiamin) leads the recorded evidence finding, but its normal metabolic role or other study outcomes do not establish thermogenesis.
Studied preparation
The counted ingredients receive preparation recognition in the saved finding, without establishing a direct energy-expenditure effect.
Formulation logic100
The counted ingredients have no missing required partners or identified conflicts among those evaluated. Their amounts meet the minimum comparison.
Partner coverage
No required ingredient partner is missing for the counted ingredients.
Conflicts
None of the evaluated conflicts was identified; the finding does not cover every possible interaction.
Effective doses
All counted ingredients meet the minimum amount comparison; that does not establish a proven thermogenic dose.
Ingredients
| Ingredient | Amount per serving | Score |
|---|---|---|
Thiamine (Thiamine Mononitrate) | 100 mg | |
Riboflavin | 100 mg | |
Niacin (Niacinamide) | 100 mg | |
Vitamin B6 (Pyridoxine Hydrochloride) | 100 mg | |
Folate | 666 mcg DFE | |
Vitamin B12 (Cyanocobalamin) | 100 mcg | |
Biotin (D-Biotin) | 100 mcg | |
Pantothenic Acid (D-Calcium Pantothenate, Vitamin B5) | 100 mg | |
Choline (Choline Bitartrate) | 20 mg | |
Inositol | 100 mg |
Thiamin (Thiamine Mononitrate) · 100 mg OverallScore82
Each serving provides 100 mg of thiamin from thiamine mononitrate, a standard water-soluble form. The evaluation considers that a high amount for its dose comparison.
How this ingredient is rated
Active Ingredient Quality & Bioavailability70
Thiamine Mononitrate is a standard water-soluble source of thiamin. The evaluation does not flag the specified artificial colors or sweeteners in the saved information.
Thiamin Chemical Form
Thiamine Mononitrate is a standard water-soluble form of thiamin.
Excipient Purity
The evaluation does not flag the specified artificial colors or sweeteners in the saved information.
Dose, Safety & Label Transparency100
The serving supplies 100 mg of thiamin, which the evaluation considers a high amount. The amount is separately specified.
Thiamin Dosage Potency
The declared 100 mg of thiamin is considered a high amount in the evaluation.
Label Transparency & Proprietary Blends
The amount is stated as 100 mg of thiamin per serving.
Value70
The normalized cost is about $0.12 per 100 mg of thiamin, in the middle band used for this evaluation. It reflects the cost of the whole product, including its other contents.
Price per Declared Dose
The cost is about $0.12 per 100 mg of thiamin, based on whole-product pricing; the evaluation places it in the middle band.
Niacin (Niacinamide) · 100 mg OverallScore72
The serving provides 100 mg of niacin as niacinamide, which lacks the lipid effects associated with nicotinic acid. That makes it a less direct fit for the stated heart-health goal.
How this ingredient is rated
Active Ingredient Quality & Bioavailability57
Niacinamide is a standard form, but it lacks the lipid effects of nicotinic acid and is a less direct match for the stated heart-health goal.
Niacin Form & Goal Alignment
Niacinamide lacks the lipid effects of nicotinic acid, making it a less direct match for the stated heart-health goal.
Precursor Source Quality
Niacinamide is a standard form, and the saved facts record no advanced NAD claim.
Dose, Safety & Label Transparency92
The saved facts name the form and record 100 mg per serving. That amount aligns with the evaluation for the form.
Clarity of Chemical Form
The saved facts identify the form as niacinamide.
Form-Specific Dosage Efficacy
The 100 mg amount aligns with the evaluation for this form.
Flush Risk & Safety Labeling
The saved facts do not record a no-flush claim.
Value60
The whole product costs about $0.12 per serving, a middle-range cost for its niacin form in the evaluation. The price covers the whole product.
Price Per Effective Serving
The whole-product serving costs about $0.12, a middle-range cost for its niacin form in the evaluation.
Riboflavin · 100 mg OverallScore72
A serving provides 100 mg of standard riboflavin, which the body converts to active forms. It costs about $0.12, a relatively low price per whole-product serving.
How this ingredient is rated
Active Ingredient Quality & Bioavailability30
The standard form of riboflavin needs conversion to active forms in the body.
Riboflavin Form Quality
The identified form is standard riboflavin, which the body converts to active forms.
Dose, Safety & Label Transparency100
Each serving lists 100 mg riboflavin. No artificial dyes or synthetic sweeteners were identified in the available other-ingredients information.
Dosage for Energy & Metabolism
A serving lists 100 mg of riboflavin.
R5P Elemental Yield Transparency
The separate phosphate-yield question does not apply to standard riboflavin.
Additive Purity
No artificial dyes or synthetic sweeteners were identified in the available other-ingredients information.
Value100
The price is about $0.12, a relatively low price per whole-product serving.
Price per Serving Value
The price is about $0.12 per whole-product serving.
Alternative products
Report alternatives
Sources
Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.
- Physicochemical properties of and volatile compounds in riboflavin fortified cloudy apple juice; study of its effect on job fatigue among Egyptian construction workers.
- Vitamin B status in patients with chronic fatigue syndrome.
- B-vitamins, related vitamers, and metabolites in patients with quiescent inflammatory bowel disease and chronic fatigue treated with high dose oral thiamine.
- Metabolic features of chronic fatigue syndrome.
- Effectiveness of Riboflavin in Inherited Metabolic Diseases: A Systematic Review
- Influence of thiamin supplementation on the health and general well-being of an elderly Irish population with marginal thiamin deficiency.
- Randomised clinical trial: high-dose oral thiamine versus placebo for chronic fatigue in patients with quiescent inflammatory bowel disease.
- Dietary reference values for thiamin.
- Effects of thiamine supplementation on exercise-induced fatigue.
- Long-term maintenance treatment with 300 mg thiamine for fatigue in patients with inflammatory bowel disease: results from an open-label extension of the TARIF study.
- A new perspective on vitamin B12 deficiency in rheumatology: a case-based review.
- Effects of Vitamin B12 Supplementation on Cognitive Function, Depressive Symptoms, and Fatigue: A Systematic Review, Meta-Analysis, and Meta-Regression.
- Patients' experiences with methylcobalamin injections in amyotrophic lateral sclerosis.
- Cobalamin deficiency: clinical picture and radiological findings.
- Vitamin B12 Deficiency: Common Questions and Answers.
- Intakes of Folate, Vitamin B6, and Vitamin B12 in Relation to All-Cause and Cause-Specific Mortality: A National Population-Based Cohort.
- The responsiveness of plasma homocysteine to small increases in dietary folic acid: a primary care study.
- Associations of Serum Folate and Homocysteine Concentrations with All-Cause, Cardiovascular Disease, and Cancer Mortality in Men and Women in Korea: the Cardiovascular Disease Association Study.
- The concept of folic acid supplementation and its role in prevention of neural tube defect among pregnant women: PRISMA.
- Systematic review of adverse health outcomes associated with high serum or red blood cell folate concentrations.