B-Complex

B-Complex

Paradise Earth's Blend4.7 (5,212 ratings)
Format:Capsule Quantity: 60 Capsule(s) · 60 servings
Goals
$14.99 $0.24 per serving

Product analysis

62 out of 100

B-Complex supplies B vitamins that help the body use energy from food and maintain normal nerve function, especially when intake is low. Its additional blends are not fully identified, making their added benefit difficult to judge.

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

Nutrient Quality71

Several B vitamins have clearly identified forms, including methylfolate and phosphate forms of B2 and B6. Other ingredients and unidentified blends leave parts of the formula harder to assess.

Ingredient Transparency67

The listed ingredient and blend totals are stated, but many forms and blend contents are not disclosed. That makes individual ingredients within the blends difficult to compare or assess.

Value For Money52

Value is mixed, with B6 and folate providing stronger value than niacin, B5 and choline. Uncertain value for some other ingredients limits the case for the full formula.

Customer Satisfaction88

Customer feedback is very positive across a large number of ratings. The breadth of feedback supports a consistent satisfaction pattern, without establishing effectiveness.

Product Focus23

B vitamins provide nutritional support for energy use and normal nervous-system function. The formula covers many overlapping goals, while undisclosed blend details make the extra contributions uncertain.

Format
Capsule
Container
60 Capsule(s)
Per serving
$0.24
Customer rating
4.7 · 5,212 ratings
Report analysis

Goals

Impact
Moderate effect
C+ Ingredient FitF PathwaysB+ EvidenceA Formulation Logic
Vitamin B5 · 50 mgRiboflavin · 50 mgThiamin · 10 mgVitamin B12 · 500 mcg

B vitamins support the normal conversion of food into usable energy. Folate and B12 also support normal blood formation. Benefits for tiredness are most relevant when intake is low; high amounts do not guarantee extra energy. Rhodiola and ashwagandha have undisclosed amounts, leaving their possible fatigue contribution uncertain.

How this product is rated for Energy

Ingredient fit70

Several nutrients relate to energy metabolism and nutritional adequacy, alongside ingredients with other purposes. Declared B vitamins provide nutritional support, but undisclosed rhodiola and ashwagandha amounts weaken amount coverage.
Goal fit
Several nutrients relate to energy metabolism and nutritional adequacy, alongside ingredients with other purposes.
Dose adequacy
Declared B vitamins provide nutritional support, but undisclosed rhodiola and ashwagandha amounts weaken amount coverage.

Pathways0

The saved support concerns nutrient sufficiency, with no substantial direct alertness, muscle-energy or fatigue-resistance coverage.
Depth
The saved support concerns nutrient sufficiency, with no substantial direct alertness, muscle-energy or fatigue-resistance coverage.
Breadth
No direct energy route reaches the saved level for broad coverage.

Evidence81

Evidence is strongest for nutritional needs and selected low-status situations, rather than an extra energy boost for everyone.
Evidence strength
Vitamin B12 provides the strongest saved evidence among the assessed ingredients, with benefits dependent on the relevant population and nutritional needs.
Studied preparation
The assessed ingredients at useful amounts match preparations recognized in the saved review.

Formulation logic94

The known nutrients have no missing required partner or configured conflict, but the two undisclosed herbal amounts weaken the formulation assessment.
Partner coverage
The assessed ingredients work independently or have their required partner.
Conflicts
No configured ingredient conflict was found in the supplied facts.
Effective doses
The known nutrient amounts meet the saved minimum; rhodiola and ashwagandha have undisclosed amounts.
Study evidence
Rhodiola Supportive 18 studies
Thiamin Disputed 12 studies
Impact
High effect
B- Ingredient FitF PathwaysA+ EvidenceA+ Formulation Logic
Biotin · 300 mcgNiacin · 50 mgVitamin B12 · 500 mcgRiboflavin · 50 mgThiamin · 10 mgVitamin B5 · 50 mgVitamin B6 · 50 mg

B vitamins help the body use energy from food through normal enzyme functions. Extra amounts do not establish faster calorie burning when intake is adequate.

How this product is rated for Metabolism Support

Ingredient fit73

The formula mainly supplies nutrients involved in ordinary metabolism. Its saved amount findings should not be interpreted as proof of extra calorie burning.
Goal fit
The formula includes ingredients for other purposes, so its focus extends beyond increasing energy expenditure.
Dose adequacy
The counted amounts provide only partial coverage of the saved comparison range; undisclosed individual amounts cannot establish a contribution.

Pathways0

No direct energy-expenditure pathway receives a contribution from this formula.
Depth
No direct energy-expenditure pathway receives a contribution from this formula.
Breadth
No pathway reaches the saved breadth requirement.

Evidence100

Thiamin leads the saved evidence finding, but normal nutrient functions do not establish extra calorie burning.
Evidence strength
Thiamin leads the saved evidence finding, but normal nutrient functions do not establish extra calorie burning.
Studied preparation
The counted preparations match the saved comparison; that match alone does not prove a metabolism boost.

Formulation logic97

No required partner is missing and no configured conflict was matched. Ashwagandha does not meet the saved amount requirement; the other counted ingredients do.
Partner coverage
No missing required partner reduces the counted ingredients’ contribution; this does not establish added benefit from combining them.
Conflicts
No configured ingredient conflict was matched.
Effective doses
Ashwagandha does not meet the saved amount requirement; the other counted ingredients do.
Study evidence
Biotin Supportive 5 studies
Niacin Supportive 17 studies
Thiamin Supportive 11 studies
Vitamin B6 Supportive 16 studies

Ingredients

IngredientAmount per servingScore
Vitamin B-1 (Benfotiamine)
10 mg 73
Vitamin B1 (Thiamine Mononitrate)
10 mg 73
Vitamin B2 (Riboflavin 5-Phosphate)
50 mg 90
Vitamin B-3 (Niacin, Niacinamide)
50 mg 65
Vitamin B-6 (Pyridoxal 5-Phosphate)
50 mg 73
Folate (L-Methylfolate)
400 mcg 92
Vitamin B12 (Methylcobalamin)
500 mcg 76
Biotin
300 mcg 59
Vitamin B5 (Calcium Pantothenate)
50 mg 70
Choline Bitartrate
50 mg 58
Inositol
50 mg
Nature's C Veggie Berry Blend
75 mg
Organic Alkalizing Green Juice Powders
65 mg
Organic Aqua Superfoods
47 mg
Stress & Energy Adaptogens (Extracts)
33 mg
Probiotics
31 mg
Gluten Free Adults 18–50 Vegan Vegetarian
Report overview
A+ Ingredient Form & Label QualityF Dose, Safety & Label TransparencyA Value
A serving provides 50 mg of vitamin B6, exceeding the European adult upper limit before other sources are counted. The source is pyridoxal 5-phosphate, and the whole-product serving costs about $0.50.
How this ingredient is rated

Ingredient Form & Label Quality100

The saved facts identify pyridoxal 5-phosphate as the B6 source. The evaluation found no flagged artificial dyes, titanium dioxide or talc in the saved ingredient evidence.
Vitamin B6 Form Identification
The saved facts identify pyridoxal 5-phosphate as the B6 source.
Clean Label and Excipient Purity
The evaluation found no flagged artificial dyes, titanium dioxide or talc in the saved ingredient evidence.

Dose, Safety & Label Transparency37

The 50 mg of B6 per serving exceeds the European adult upper limit, before B6 from food or other supplements is considered. The chemical B6 source is identified in the saved facts.
Vitamin B6 Dose & Safety Policy
The 50 mg of B6 per serving exceeds the European adult upper limit, before B6 from food or other supplements is considered.
Label Transparency
The chemical B6 source is identified in the saved facts.

Value91

The whole-product serving costs about $0.50, or $0.00999 per mg of B6; its B6 unit cost is relatively low in this comparison.
Vitamin B6 Price Efficiency
The whole-product serving costs about $0.50, or $0.00999 per mg of B6; its B6 unit cost is relatively low in this comparison.
A Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyB+ Value
A serving lists 400 mcg of folate from L-methylfolate. The amount is stated in micrograms, without a DFE basis in the saved information.
How this ingredient is rated

Active Ingredient Quality & Bioavailability91

L-methylfolate is an active form that bypasses the MTHFR conversion step. The L designation identifies the active form in the saved information.
Folate Form Hierarchy
L-methylfolate is an active form that bypasses the MTHFR conversion step.
Patented Sources & Isomeric Purity
The L designation identifies the active form in the saved information.

Dose, Safety & Label Transparency100

The serving states 400 mcg of folate; the assessment uses that declared amount without treating it as DFE.
Folate Dosage by Declared Basis
The serving lists 400 mcg of folate; the assessment uses the declared-microgram basis, not a DFE conversion.

Value80

A whole-product serving costs about $0.50.
Price per Bioavailable Serving
The whole-product price is about $0.50 per serving.
A+ Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyD+ Value
A serving lists 50 mg riboflavin from riboflavin 5-phosphate. The whole-product serving costs about $0.50, a price that does not isolate riboflavin.
How this ingredient is rated

Active Ingredient Quality & Bioavailability100

The recorded source is riboflavin 5-phosphate.
Riboflavin Form Quality
The recorded source is riboflavin 5-phosphate.

Dose, Safety & Label Transparency100

The saved serving amount is 50 mg. The saved facts specify the riboflavin amount for the phosphate source.
Dosage for Energy & Metabolism
The saved facts list 50 mg riboflavin per serving.
R5P Elemental Yield Transparency
The saved facts specify the riboflavin amount for the phosphate source.
Additive Purity
The evaluation did not flag the specified artificial dyes or sweeteners in the available ingredients data.

Value50

The whole-product serving costs about $0.50; the price is not allocated to riboflavin.
Price per Serving Value
The recorded whole-product serving price is about $0.50.
Report alternatives

Sources

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

  1. Effects of multi-herb and ashwagandha root formulas on stress modulation: a randomized, double-blind, placebo-controlled clinical study.
    McKinney E; Stewart J; Kewalramani R; Singh S · Trials · 2026
    Randomized trial186 participantsEnergy forAshwagandha
  2. Efficacy and Safety of Low-Dose Ashwagandha Supplementation on Exercise Endurance: A Randomized, Placebo-Controlled, Double-Blind, Clinical Trial.
    Prajapati H; Satia M; Shah D; Basera I; Shah T · Phytotherapy research : PTR · 2026
    Randomized trialEnergy forAshwagandha
  3. 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 participantsEnergy forAshwagandha
  4. Enhancing healthspan with Ashwagandha (Withania somnifera): a comprehensive review of its multifaceted geroprotective benefits.
    Vittal M; Vinciguerra M · Biogerontology · 2025
    Narrative reviewEnergy forAshwagandha
  5. Safety and Efficacy of Ashwagandha Root Extract on Cognition, Energy and Mood Problems in Adults: Prospective, Randomized, Placebo-Controlled Study.
    Kale S; Lopresti A; Suri R; Garg N; Langade D · Journal of psychoactive drugs · 2026
    Randomized trial120 participantsEnergy forAshwagandha
  6. The Effect of Short-Term Rhodiola rosea Supplementation on Simulated Game Time, Perceived Fatigue, and Performance in Basketball Players.
    Wang J; Zhao H; Yu L; Zhao K; Jiang W; Liu S; Dai J; Xu L; Sun P; Yun H; Liu C · Nutrients · 2025
    Randomized trial48 participantsEnergy forRhodiola
  7. Effects of Rhodiola rosea on Physical and Decision-Making Performance in Football Players: A Randomised Controlled Trial.
    Dou Y; Wang Y; Zhang W; Jiang Y; Zhang J; Yang T; Han Z; Li Y; Liu C; Ren D · Nutrients · 2026
    Randomized trial24 participantsEnergy forRhodiola
  8. Combined Effects of Rhodiola Rosea and Caffeine Supplementation on Straight Punch Explosive Power in Untrained and Trained Boxing Volunteers: A Synergistic Approach.
    Tao B; Sun H; Li H; Xu Z; Xu Y; Chen L; Ma C; Zhang X; Yu L; Bao S; Liu C · Metabolites · 2025
    Randomized trial96 participantsEnergy forRhodiola
  9. Rhodiola rosea in Subjects with Prolonged or Chronic Fatigue Symptoms: Results of an Open-Label Clinical Trial.
    Lekomtseva Y; Zhukova I; Wacker A · Complementary medicine research · 2019
    Single-arm trial100 participantsEnergy forRhodiola
  10. Combined Rhodiola rosea and eccentric training boost endurance performance and lower-limb reactive strength in recreationally active women.
    Wang IL; Su Y; Zhang L; Tang M; Chen YM · Frontiers in physiology · 2025
    Randomized trial30 participantsEnergy forRhodiola
  11. 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
  12. 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
  13. 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
  14. 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
  15. 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
  16. 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
  17. 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
  18. 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
  19. Effects of thiamine supplementation on exercise-induced fatigue.
    Suzuki M; Itokawa Y · Metabolic brain disease · 1996
    Randomized trial16 participantsEnergy forThiamin
  20. 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