B 50 Complex

B 50 Complex

Spring Valley4.6 (455 ratings)
Format:Tablet Quantity: 60 Tablet(s) · 60 servings
Goals
$4.74 $0.07 per serving

Product analysis

53 out of 100

B 50 Complex may help fill B-vitamin gaps and support normal energy use and blood formation. The main nutrient listing leaves forms unspecified, making quick comparisons harder.

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

Nutrient Quality20

The main nutrient listing does not clearly link the vitamins to their forms. Some sources can be identified elsewhere on the label, but direct comparison is less straightforward.

Ingredient Transparency63

All B-vitamin amounts are stated, making serving contents easy to check. Their forms are omitted from the main nutrient listing.

Value For Money64

Value is mixed, with several B vitamins offering more for the money than thiamin or B5. Value for B12 and biotin remains uncertain.

Customer Satisfaction75

Customer feedback is very positive across several hundred reviews. That provides useful satisfaction context without proving extra energy or hair benefits.

Product Focus71

The formula mainly supports normal nutrient functions when B-vitamin intake is low. Higher amounts do not establish extra energy, faster metabolism or additional hair growth when intake is adequate.

Format
Tablet
Container
60 Tablet(s)
Per serving
$0.07
Customer rating
4.6 · 455 ratings
Report analysis

Goals

Impact
High effect
A Ingredient FitF PathwaysB EvidenceA+ Formulation Logic
Vitamin B5 · 50 mgRiboflavin · 50 mgThiamin · 50 mgVitamin B12 · 50 mcg

Folate, Niacin, Vitamin B6, Vitamin B12, Vitamin B5, riboflavin can help address tiredness associated with their respective deficiencies. Their normal roles in metabolism do not establish extra energy when nutritional intake is adequate. Higher amounts or particular vitamin forms do not establish additional fatigue relief.

How this product is rated for Energy

Ingredient fit93

Folate, Niacin, Vitamin B6, Vitamin B12, Vitamin B5, riboflavin supplies the relevant ingredient connection to this goal. The declared serving only partly meets the saved amount references; a serving does not establish repeated daily exposure.
Goal fit
Folate, Niacin, Vitamin B6, Vitamin B12, Vitamin B5, riboflavin supplies the relevant ingredient connection to this goal.
Dose adequacy
The declared serving only partly meets the saved amount references; a serving does not establish repeated daily exposure.

Pathways0

No direct alertness or exercise-energy mechanism was identified; the relevant role is nutritional adequacy.
Depth
No direct alertness or exercise-energy mechanism was identified; the relevant role is nutritional adequacy.
Breadth
No evaluated mechanism reached the saved coverage requirement.

Evidence78

The relevant support concerns correcting nutrient deficiencies rather than boosting energy with adequate intake.
Evidence strength
The relevant support concerns correcting nutrient deficiencies rather than boosting energy with adequate intake.
Studied preparation
The saved preparation check found matches, without establishing general benefit or superiority of these forms.

Formulation logic100

No missing ingredient partner requirement was identified. None of the evaluated ingredient conflicts was identified.
Partner coverage
No missing ingredient partner requirement was identified.
Conflicts
None of the evaluated ingredient conflicts was identified.
Effective doses
All included ingredients meet the saved minimum amount requirement; this does not establish a clinically effective fatigue regimen.
Study evidence
Thiamin Disputed 12 studies
Impact
High effect
A- Ingredient FitF PathwaysA+ EvidenceA+ Formulation Logic
Biotin · 50 mcgNiacin · 50 mgVitamin B12 · 50 mcgRiboflavin · 50 mgThiamin · 50 mgVitamin B5 · 50 mgVitamin B6 · 50 mg

B vitamins help the body use carbohydrates, fats and protein through their coenzyme roles. Supplying more than adequate intake does not establish a rise in resting or daily energy expenditure. The formula's recognized amounts reflect a comparison framework rather than proof that high B-vitamin amounts accelerate metabolism. Individual forms are not specified, so no form advantage can be described.

How this product is rated for Metabolism Support

Ingredient fit85

B vitamins supply the credited contributions with relatively narrow formula focus.
Goal fit
B vitamins supply the credited contributions with relatively narrow formula focus.
Dose adequacy
Most amounts reach their saved benchmarks; B12 and biotin receive partial amount recognition.

Pathways0

The saved findings show no coverage of the configured metabolic-rate pathways, despite recognizing the nutrients' amounts.
Depth
None of the configured metabolic-rate pathways receives coverage from the credited nutrients.
Breadth
No area reaches the saved threshold for substantial coverage.

Evidence100

Thiamin leads the saved evidence finding, and the credited preparations are recognized. Normal nutrient or cellular roles still differ from measured whole-body energy expenditure.
Evidence strength
Thiamin leads the saved evidence finding; the clinical scope and outcome limitations described above still apply.
Studied preparation
The saved findings recognize the credited preparations; this does not establish a sustained metabolism or fat-loss effect.

Formulation logic100

No unmet partner requirement or configured conflict was found. All credited ingredients clear the amount threshold used for inclusion.
Partner coverage
Each credited ingredient works independently or has its required partner.
Conflicts
No configured conflict was matched among the evaluated combinations.
Effective doses
All credited ingredients clear the inclusion threshold; this is not proof of an effective energy-expenditure dose.
Study evidence
Biotin Supportive 5 studies
Niacin Supportive 17 studies
Thiamin Supportive 11 studies
Vitamin B6 Supportive 16 studies

Ingredients

IngredientAmount per servingScore
Thiamine
50 mg 76
Riboflavin
50 mg 72
Niacin
50 mg 70
Vitamin B6
50 mg 70
Folate
400 mcg 18
Vitamin B12
50 mcg
Biotin
50 mcg
Pantothenic Acid
50 mg 70
Gluten Free Adults 18–50 Sugar Free
Report overview
Riboflavin · 50 mg OverallScore72
F Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA+ Value
Each serving lists 50 mg of riboflavin in the standard form, a comparatively large amount. The whole-product serving costs about $0.08.
How this ingredient is rated

Active Ingredient Quality & Bioavailability30

The label lists the standard form, riboflavin.
Riboflavin Form Quality
The label lists the standard form, riboflavin.

Dose, Safety & Label Transparency100

The serving lists 50 mg of riboflavin, a comparatively large amount. The available ingredient list has no artificial dyes or synthetic sweeteners flagged in the evaluation.
Dosage for Energy & Metabolism
A serving contains 50 mg of riboflavin, a comparatively large amount.
R5P Elemental Yield Transparency
The separate phosphate-to-riboflavin yield question does not apply to the standard form.
Additive Purity
The available ingredient list has no artificial dyes or synthetic sweeteners flagged in the evaluation.

Value100

The whole-product serving costs about $0.08, toward the lower end of the comparison.
Price per Serving Value
The whole-product serving costs about $0.08, toward the lower end of the comparison.
Vitamin B6 · 50 mg OverallScore70
A+ Ingredient Form & Label QualityF Dose, Safety & Label TransparencyA+ Value
Each serving contains 50 mg of vitamin B6, a high amount that raises safety concerns. Pyridoxine hydrochloride is identified among the other ingredients.
How this ingredient is rated

Ingredient Form & Label Quality100

The recorded B6 source is pyridoxine hydrochloride.
Vitamin B6 Form Identification
The recorded B6 form is pyridoxine hydrochloride.
Clean Label and Excipient Purity
The recorded other-ingredients information does not flag the colors, titanium dioxide, hydrogenated oils or talc checked here.

Dose, Safety & Label Transparency25

The 50 mg of vitamin B6 per serving is a high amount that raises safety concerns. The main B6 entry lists the amount while the source appears among other ingredients.
Vitamin B6 Dose & Safety Policy
The 50 mg of vitamin B6 per serving is a high amount that raises safety concerns.
Label Transparency
The main B6 entry gives the amount; pyridoxine hydrochloride is identified among the other ingredients.

Value100

A whole-product serving costs about $0.08 for 50 mg of B6, relatively low per mg. The price covers the whole product.
Vitamin B6 Price Efficiency
A whole-product serving costs about $0.08 for 50 mg of B6, relatively low per mg. The price covers the whole product.
Niacin · 50 mg OverallScore70
C- Active Ingredient Quality & BioavailabilityC+ Dose, Safety & Label TransparencyA+ Value
A serving provides 50 mg of niacin, with niacinamide identified as its form. For the stated heart-health context, niacinamide does not have the same lipid effects as nicotinic acid.
How this ingredient is rated

Active Ingredient Quality & Bioavailability57

Niacinamide is the recorded form; the heart-health evaluation distinguishes its effects from those of nicotinic acid.
Niacin Form & Goal Alignment
For the stated heart-health context, niacinamide does not have the same lipid effects as nicotinic acid.
Precursor Source Quality
The recorded form is niacinamide; the saved facts do not establish an advanced NAD+ precursor claim.

Dose, Safety & Label Transparency67

The serving provides 50 mg niacin in the recorded niacinamide form.
Clarity of Chemical Form
The niacin row records 50 mg per serving, while Other Ingredients identifies niacinamide as the source.
Form-Specific Dosage Efficacy
The recorded serving provides 50 mg of niacin in the identified niacinamide form.
Flush Risk & Safety Labeling
Niacinamide is treated as a lower-flush form; an explicit no-flush claim is not established in the saved facts.

Value100

The recorded whole-product price is about $0.08 per serving.
Price Per Effective Serving
A whole-product serving costs about $0.08; that price includes the rest of the product as well as niacin.
Report alternatives

Sources

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

  1. Physicochemical properties of and volatile compounds in riboflavin fortified cloudy apple juice; study of its effect on job fatigue among Egyptian construction workers.
    Fouad S; Ibrahim GE; Hussein AMS; Ibrahim FA; El Gendy A · Heliyon · 2021
    Non-randomized trialEnergy forRiboflavin
  2. Vitamin B status in patients with chronic fatigue syndrome.
    Heap LC; Peters TJ; Wessely S · Journal of the Royal Society of Medicine · 1999
    Case-control study30 participantsEnergy forRiboflavin
  3. B-vitamins, related vitamers, and metabolites in patients with quiescent inflammatory bowel disease and chronic fatigue treated with high dose oral thiamine.
    Bager P; Hvas CL; Hansen MM; Ueland P; Dahlerup JF · Molecular medicine (Cambridge, Mass.) · 2023
    Observational studyEnergy forRiboflavin
  4. Metabolic features of chronic fatigue syndrome.
    Naviaux RK; Naviaux JC; Li K; Bright AT; Alaynick WA; Wang L; Baxter A; Nathan N; Anderson W; Gordon E · Proceedings of the National Academy of Sciences of the United States of America · 2024
    Case-control study84 participantsEnergy forRiboflavin
  5. Effectiveness of Riboflavin in Inherited Metabolic Diseases: A Systematic Review
    Bregje Jaeger, Nina N Stolwijk, Femke Aaldering, Charlotte A Ruys, Marije Smits, Nicole I Wolf, Carla E M Hollak, Annet M Bosch · Journal of Inherited Metabolic Disease · 2026
    Systematic review381 studies pooledEnergy Metabolism Support forRiboflavin
  6. Influence of thiamin supplementation on the health and general well-being of an elderly Irish population with marginal thiamin deficiency.
    Smidt LJ; Cremin FM; Grivetti LE; Clifford AJ · Journal of gerontology · 1991
    Randomized trial80 participantsEnergy forThiamin
  7. Randomised clinical trial: high-dose oral thiamine versus placebo for chronic fatigue in patients with quiescent inflammatory bowel disease.
    Bager P; Hvas CL; Rud CL; Dahlerup JF · Alimentary pharmacology & therapeutics · 2021
    Randomized trial40 participantsEnergy forThiamin
  8. Dietary reference values for thiamin.
    EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA); Turck D; Bresson JL; Burlingame B; Dean T; Fairweather-Tait S; Heinonen M; Hirsch-Ernst KI; Mangelsdorf I; McArdle HJ; Naska A; Nowicka G; Pentieva K; Sanz Y; Siani A; Sjödin A; Stern M; Tomé D; Van Loveren H; Vinceti M; Willatts P; Lamberg-Allardt C; Przyrembel H; Tetens I; Gudelj Rakic J; Ioannidou S; de Sesmaisons-Lecarré A; Forss AC; Neuhäuser-Berthold M · EFSA journal. European Food Safety Authority · 2026
    Guideline / consensusEnergy forThiamin
  9. Effects of thiamine supplementation on exercise-induced fatigue.
    Suzuki M; Itokawa Y · Metabolic brain disease · 1996
    Randomized trial16 participantsEnergy forThiamin
  10. 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.
    Bager P; Hvas CL; Rud CL; Dahlerup JF · Scandinavian journal of gastroenterology · 2022
    Randomized trialEnergy forThiamin
  11. 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
  12. 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
  13. 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
  14. 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
  15. Vitamin B12 Deficiency: Common Questions and Answers.
    Patel H; McGuirk R · American family physician · 2025
    Narrative reviewEnergy forVitamin B12
  16. Biotin and contribution to normal energy-yielding metabolism: evaluation of a health claim pursuant to Article 14 of Regulation (EC) No 1924/2006.
    EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA) · EFSA journal. European Food Safety Authority · 2026
    Guideline / consensusMetabolism Support forBiotin
  17. Pregnancy and lactation alter biomarkers of biotin metabolism in women consuming a controlled diet.
    Perry CA; West AA; Gayle A; Lucas LK; Yan J; Jiang X; Malysheva O; Caudill MA · The Journal of nutrition · 2015
    Clinical trial75 participantsMetabolism Support forBiotin
  18. Survey of the effect of biotin on glycemic control and plasma lipid concentrations in type 1 diabetic patients in kermanshah in iran (2008-2009)
    Hemmati M, Babaei H, Abdolsalehei M · Oman Medical Journal · 2013
    Randomized trial70 participantsMetabolism Support forBiotin
  19. Chromium picolinate and biotin combination improves glucose metabolism in treated, uncontrolled overweight to obese patients with type 2 diabetes
    César A Albarracin, Bobby C Fuqua, James L Evans, Ira D Goldfine · Diabetes/Metabolism Research and Reviews · 2008
    Randomized trial348 participantsMetabolism Support forBiotin
  20. Biotin supplementation reduces plasma triacylglycerol and VLDL in type 2 diabetic patients and in nondiabetic subjects with hypertriglyceridemia
    Cristina Revilla-Monsalve, Iván Zendejas-Ruiz, Sergio Islas-Andrade, Armida Báez-Saldaña, Miguel Angel Palomino-Garibay, Pedro Martín Hernández-Quiróz, Cristina Fernandez-Mejia · Biomedicine & Pharmacotherapy · 2006
    Randomized trial33 participantsMetabolism Support forBiotin