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Vitamin B Complex

California Gold Nutrition
4.8
★ ★ ★ ★ ★
(7697 ratings)
Vitamin B6 34 mg
Riboflavin 26 mg
Vitamin B5 100 mg
Thiamin 24 mg
Niacin 32 mg
Biotin 300 mcg
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Score77
A coherent mix of active and standard B vitamins offers strong energy-metabolism support, with incomplete excipient disclosure as the main drawback.
How scoring works
Quantity:60 Capsule(s) • (60 servings)
Goals:
Energy
Metabolism Boost

Score 77

A coherent mix of active and standard B vitamins offers strong energy-metabolism support, with incomplete excipient disclosure as the main drawback.
How scoring works
$10.78($0.17 per serving)
iHerb
$ 10.78
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Analysis

The B complex combines active riboflavin and P-5-P with complementary standard forms. That design supports several linked pathways involved in converting food into cellular energy.

Vitamin B6 is supplied at a meaningful amount without reaching the clearest high-dose concern in the provided assessment. The formula also provides broad B-vitamin context rather than relying on one isolated nutrient.

Most active amounts are clear, and the capsule appears competitively positioned for regular use. Inactive ingredients are not fully supplied, so people with excipient sensitivities have less information to work with.

Who is it for
  • Adults seeking a well-rounded B complex
  • People who value active B6 and riboflavin forms
Best for
  • Daily metabolic nutrient support
  • Broad B-vitamin coverage

Pros

  • Includes active P-5-P
  • Includes riboflavin 5-phosphate
  • Coherent multi-pathway formula
  • Competitive serving value

Cons

  • Inactive ingredients are not fully supplied
  • Some vitamins still use standard forms
  • Not designed for acute stimulation

Warnings

  • People sensitive to capsule excipients cannot fully assess suitability from the supplied inactive-ingredient information

Nutrient quality

83 Highest impact

Riboflavin phosphate, pyridoxal phosphate, and a named folate source are useful forms. Most listed B vitamins have meaningful amounts, although duplicate entries make totals uncertain.

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Ingredient transparency

70 High impact

Many amounts are listed, but duplicate full-dose entries for niacin, vitamin B6, and biotin make totals unclear. A complete inactive ingredient list was not supplied.

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Customer satisfaction

72 High impact

The available aggregate rating is reasonably strong for this category. No firsthand outcome details were supplied, so alignment with the intended use is uncertain.

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Value for money

83 Highest impact

Useful active forms support quality, while ambiguous totals reduce confidence. The product is moderately competitive after accounting for disclosure ambiguity.

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Report analysis

Goals

Energy
Energy
Impact
Highest effect
A Goal FitB- Strength of SupportB+ CoverageA- Formula Quality
Vitamin B5 · 100 mgRiboflavin · 26 mgThiamin · 24 mg

The capsule provides a broad group of B vitamins in several active or complementary forms for energy metabolism and nerve function. Riboflavin phosphate, pyridoxal phosphate, and folate strengthen form quality.

Many amounts are far above ordinary daily requirements, and repeated entries make it unclear how each form contributes to the stated totals. Long-term intake of the high vitamin B6 amount may raise neuropathy risk, especially when combined with other B-complex products.

Study evidence
Riboflavin Mixed 6 studies
Metabolism Boost
Metabolic B-Vitamins
Metabolism Boost
Impact
High effect
D+ Goal FitB Strength of SupportC CoverageA Formula Quality
Biotin · 300 mcgNiacin · 32 mgRiboflavin · 26 mgThiamin · 24 mgVitamin B5 · 100 mgVitamin B6 · 34 mg

A high-potency B-complex supports normal conversion of food into cellular energy, but it does not directly increase metabolic rate. Active R5P and P-5-P add quality, while the formula remains focused on foundational coenzymes.

Most B-vitamin amounts are meaningful and fully disclosed in a simple capsule. The absence of caffeine, carnitine, thyroid minerals, or glycemic-control actives limits its effect to correcting nutrient gaps.

Study evidence
Riboflavin Mixed 5 studies
Vitamin B6 Supportive 16 studies

Ingredients

IngredientAmount per serving
Vitamin B1 (Thiamine Hydrochloride)
 24 mg
Vitamin B2 (Riboflavin 5-Phosphate, Riboflavin)
 26 mg
Vitamin B3 (Niacin, Niacinamide)
 32 mg
Vitamin B6 (Pyridoxal 5-Phosphate, Pyridoxine Hydrochloride)
 34 mg
Magnafolate Pro
400 mcg DFE
Biotin (Dicalcium Phosphate)
 300 mcg
Pantothenic Acid (D-Calcium Pantothenate)
 100 mg
Gluten Free Adults 18–50 Dairy Free
Report overview
Vitamin B6 (Pyridoxal 5-Phosphate, Pyridoxine Hydrochloride) · 34 mg OverallScore92
B Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA+ Value

The vitamin B6 dose is well aligned with the intended metabolic and neurological range. A blend of active P-5-P and pyridoxine hydrochloride offers some metabolic readiness without relying entirely on the active form. One-capsule dosing and a low serving cost make the broader B-complex practical, while no concerning additives appear in the supplied data.

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Riboflavin (Riboflavin 5-Phosphate) · 26 mg OverallScore85
B- Active Ingredient Quality & BioavailabilityA- Dose, Safety & Label TransparencyA+ Value

The blend combines active riboflavin 5-phosphate with standard riboflavin, offering some direct coenzyme-form vitamin B2 without relying on it exclusively. The 26 mg amount provides moderate support in an easy-to-dissolve capsule at strong value. The formula also supplies 34 mg of vitamin B6, so long-term stacking with other high-B6 supplements may increase the risk of nerve symptoms.

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Vitamin B5 (D-Calcium Pantothenate) · 100 mg OverallScore72
A Active Ingredient Quality & BioavailabilityB Dose, Safety & Label TransparencyF Value

D-calcium pantothenate provides a useful maintenance-level B5 dose in one capsule. Its active amount and source are clearly identified within a broader B-complex formula. The lower B5 concentration makes it less cost-efficient for anyone seeking B5 specifically.

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Loading alternative details
85 Performance

B-Complex Plus

Pure Encapsulations
A more refined choice supplies activated riboflavin, P-5-P, methylfolate, and methylcobalamin. Compared with Vitamin B Complex, its active forms and more coherent formula make the amounts easier to assess. Niacin is elevated, while vitamin B6 is more restrained than in many high-potency formulas.
81 Performance

Fully Active B Complex with Quatrefolic

Doctor's Best
A more refined choice supplies methylfolate, methylcobalamin, P-5-P, and riboflavin phosphate. Compared with Vitamin B Complex, its active forms and more coherent formula make the amounts easier to assess. Overlapping entries make the apparent niacin and vitamin B6 totals unclear and potentially aggressive.
85 Performance

BioCoenzymated Active B Complex

Natural Factors
A more refined choice supplies benfotiamine, riboflavin 5-phosphate, P-5-P, methylfolate, and methylcobalamin. Compared with Vitamin B Complex, its active forms and more coherent formula make the amounts easier to assess. The formula is still potent, but its vitamin B6 amount is more measured than many high-dose complexes.
74 Budget

B 50 Complex

Spring Valley
A lower-cost serving still supplies substantial amounts of the core B vitamins in a simple formula. Compared with Vitamin B Complex, it costs less per serving and avoids the original label’s duplicated biotin entries. Missing chemical forms and a high vitamin B6 amount leave important quality and safety uncertainty.
71 Budget

B 50 Complex

Thompson
A lower-cost serving still supplies the core B vitamins plus folate, biotin, and pantothenic acid. Compared with Vitamin B Complex, it costs less per serving and avoids the original label’s duplicated biotin entries. Conventional forms, an undisclosed base blend, and high vitamin B6 reduce its long-term appeal.
78 Budget

B-50 Complex

21st Century
A lower-cost serving still supplies broad thiamine, riboflavin, niacin, folate, biotin, and pantothenic-acid coverage. Compared with Vitamin B Complex, it costs less per serving and avoids the original label’s duplicated biotin entries. Conventional forms and a high pyridoxine amount still limit its fit for long-term daily use.
80 Value

CellularActive Coenzyme B-Complex

Bluebonnet
A strong value choice combines coenzyme forms of thiamine, riboflavin, vitamin B6, folate, and vitamin B12 with favorable serving economics. Compared with Vitamin B Complex, it balances clear ingredient coverage with favorable serving value. Mixed folate entries and elevated vitamin B6 still deserve attention.
79 Value

B Complex Plus

Seeking Health
A strong value choice combines active riboflavin, P-5-P, and two disclosed vitamin B12 forms with favorable serving economics. Compared with Vitamin B Complex, it balances clear ingredient coverage with favorable serving value. The niacin declaration is ambiguous and may carry flushing potential.
76 Value

Biotin Forte

Nature's Way
A strong value choice combines vitamin C, the core B vitamins, folate, and substantial biotin with favorable serving economics. Compared with Vitamin B Complex, it balances clear ingredient coverage with favorable serving value. The large biotin amount can interfere with some laboratory tests, and vitamin B6 remains elevated.
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Sources

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

  1. 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
  2. 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
  3. 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
  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 Boost forRiboflavin
  6. Disorders of flavin adenine dinucleotide metabolism: MADD and related deficiencies.
    Mereis M; Wanders RJA; Schoonen M; Dercksen M; Smuts I; van der Westhuizen FH · The international journal of biochemistry & cell biology · 2024
    Systematic reviewMetabolism Boost forRiboflavin
  7. Anaemia during pregnancy: could riboflavin deficiency be implicated?
    Duffy B; McNulty H; Ward M; Pentieva K · The Proceedings of the Nutrition Society · 2026
    Narrative reviewMetabolism Boost forRiboflavin
  8. Effects of riboflavin and folic acid supplementation on plasma homocysteine levels in healthy subjects.
    Chuang CZ; Boyles A; Legardeur B; Su J; Japa S; Lopez-S A · The American journal of the medical sciences · 2006
    Non-randomized trial34 participantsMetabolism Boost forRiboflavin
  9. Riboflavin and riboflavin-derived cofactors in adolescent girls with anorexia nervosa.
    Capo-chichi CD; Guéant JL; Lefebvre E; Bennani N; Lorentz E; Vidailhet C; Vidailhet M · The American journal of clinical nutrition · 1999
    Clinical trial34 participantsMetabolism Boost forRiboflavin
  10. Plasma vitamin B6 vitamers before and after oral vitamin B6 treatment: a randomized placebo-controlled study.
    Bor MV; Refsum H; Bisp MR; Bleie Ø; Schneede J; Nordrehaug JE; Ueland PM; Nygard OK; Nexø E · Clinical chemistry · 2003
    Randomized trial90 participantsMetabolism Boost forVitamin B6
  11. Dietary one-carbon metabolism nutrients and risk of MASLD progression: a prospective cohort study.
    Shen L; Wang K; Li R; Li Y; Guo Y; Li F; Yuan J; Yang Z; Xia B; Lin X · European journal of clinical nutrition · 2026
    Cohort study46,800 participantsMetabolism Boost forVitamin B6
  12. Associations of Vitamin B6 Intake and Plasma Pyridoxal 5'-Phosphate with Plasma Polyunsaturated Fatty Acids in US Older Adults: Findings from NHANES 2003-2004.
    Kim H; Enrione EB; Narayanan V; Li T; Campa A · Nutrients · 2022
    Cross-sectional study461 participantsMetabolism Boost forVitamin B6
  13. Influence of oral contraceptives, pyridoxine (vitamin B6), and tryptophan on carbohydrate metabolism.
    Adams PW; Wynn V; Folkard J; Seed M · Lancet (London, England) · 1976
    Clinical trial46 participantsMetabolism Boost forVitamin B6
  14. Effect of oral contraceptives and vitamin B6 deficiency on carbohydrate metabolism.
    Rose DP; Leklem JE; Brown RR; Linkswiler HM · The American journal of clinical nutrition · 1975
    Clinical trialMetabolism Boost forVitamin B6