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B-Complex 50

Solaray
4.7
★ ★ ★ ★ ★
(7628 ratings)
Vitamin B6 50 mg
PABA 50 mg
Niacin 50 mg
Riboflavin 50 mg
Thiamin 50 mg
Vitamin B5 50 mg
Choline 20 mg
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Score74
A complete and convenient long-supply B-complex, though form quality and high B6 exposure are meaningful trade-offs.
How scoring works
Quantity:250 VegCap(s) • (250 servings)
Goals:
General Health
Energy
Metabolism Boost

Score 74

A complete and convenient long-supply B-complex, though form quality and high B6 exposure are meaningful trade-offs.
How scoring works
$33.39($0.13 per serving)
Vitacost
$ 33.39
iHerb
$ 33.39
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Analysis

The formula covers every major B vitamin and offers the convenience of a long supply in one-capsule servings. Its core role is supporting normal nutrient metabolism and filling broad B-vitamin gaps.

Folic acid, cyanocobalamin, pyridoxine hydrochloride, and standard riboflavin are basic forms. Small choline and biotin amounts add little for targeted cognitive or hair use, while PABA and inositol remain secondary extras.

The high capsule count may suit consistent users who already know they tolerate this potency. New users should consider the substantial vitamin B6 exposure before committing to prolonged daily use.

Who is it for
  • Adults wanting a long supply of a B-complex
  • Users who prefer a vegetarian capsule
  • People addressing broad B-vitamin gaps
Best for
  • Broad B-vitamin supplementation
  • Normal energy metabolism
  • Convenient long-term supply when medically appropriate

Pros

  • Complete B-vitamin profile
  • Fully disclosed active amounts
  • One-capsule serving
  • Large quantity reduces repurchasing frequency

Cons

  • Uses basic folic acid and cyanocobalamin
  • Uses standard pyridoxine
  • Choline and biotin are modest
  • PABA and inositol add limited practical value

Warnings

  • The 50 mg vitamin B6 amount may increase the risk of tingling, numbness, or peripheral nerve problems with prolonged use or stacking.
  • The 680 mcg folic acid amount can add substantially to intake from fortified foods and other supplements.

Nutrient quality

64 Moderate impact

The core vitamins are complete, but folic acid, cyanocobalamin, and pyridoxine are basic forms. Vitamin B6 is unnecessarily high for everyday long-term supplementation.

Ingredient transparency

74 High impact

Most amounts are clear, but thiamine and niacin totals repeat across generic and form entries. Daily directions and inactive ingredients are not supplied.

Customer satisfaction

72 High impact

The aggregate rating is very strong and supported by very high volume. No detailed experience reports are supplied, so recurring complaints and purpose fit remain uncertain.

Value for money

86 Highest impact

The very large package delivers excellent cost efficiency. Basic forms and excessive vitamin B6 reduce quality, but the serving value remains strong.

Report analysis

Goals

General Health
Impact
High effect
B+ Goal FitC Strength of SupportC+ CoverageA- Formula Quality
Folate · 680 mcgVitamin B12 · 50 mcg

A complete B-complex supports energy metabolism and helps cover essential B-vitamin needs. The amounts are clearly listed in a focused vegetarian capsule.

Folic acid and cyanocobalamin are less preferred forms, and the vitamin B6 amount is high for routine long-term use. The formula does not cover vitamin D, minerals, essential fats, or other major general-health pillars.

Study evidence
Folate Supportive 80 studies
Energy
Impact
High effect
B- Goal FitC Strength of SupportC CoverageB Formula Quality
Vitamin B5 · 50 mgRiboflavin · 50 mgThiamin · 50 mgVitamin B12 · 50 mcg

A broad B-complex supports metabolic fuel use, red-blood-cell formation, and nervous-system function. It is most likely to help fatigue related to inadequate B-vitamin intake rather than provide immediate stimulation.

The label gives exact amounts, but folic acid, cyanocobalamin, pyridoxine, and other conventional forms are basic choices. The substantial pyridoxine amount may raise neuropathy risk with long-term daily use, especially when combined with other vitamin B6 sources.

Metabolism Boost
Impact
Moderate effect
D- Goal FitD+ Strength of SupportD- CoverageB+ Formula Quality
Biotin · 50 mcgNiacin · 50 mgVitamin B12 · 50 mcgRiboflavin · 50 mgThiamin · 50 mgVitamin B5 · 50 mgVitamin B6 · 50 mg

B vitamins support cellular energy metabolism, but they do not meaningfully raise metabolic rate in people whose needs are already met. The formula is best suited to correcting nutrient gaps rather than thermogenesis or fat oxidation.

The 50 mg B-vitamin pattern is substantial, yet no caffeine, green tea, carnitine, chromium, iodine, or CoQ10 is included. Basic pyridoxine and cyanocobalamin forms limit quality and do not add a targeted metabolic mechanism.

Study evidence
Vitamin B6 Supportive 16 studies

Ingredients

IngredientAmount per serving
Thiamine (Thiamine Mononitrate, Vitamin B1)
50 mg
Riboflavin (Vitamin B2)
50 mg
Niacin (Niacinamide, Vitamin B3)
50 mg
Vitamin B6 (Pyridoxine Hydrochloride)
50 mg
Folic Acid
680 mcg
Vitamin B12 (Cyanocobalamin)
50 mcg
Biotin
50 mcg
Pantothenic Acid (Calcium D-Pantothenate)
50 mg
Choline (Choline Bitartrate)
20 mg
Para-Aminobenzoic Acid
50 mg
Inositol
50 mg
Adults 18–50
Report overview
C+ Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA+ Value

The 50 mg dose sits in the intended range, but pyridoxine hydrochloride requires conversion before use. Riboflavin supports that conversion, and the single-capsule serving is practical. The larger package delivers especially economical daily use without a targeted additive concern in the provided ingredient data.

PABA · 50 mg OverallScore84
A Active Ingredient Quality & BioavailabilityA- Dose, Safety & Label TransparencyB- Value

Clearly identified PABA delivers a standard high-potency B-complex dose. Immediate release is appropriate at this amount, while missing excipient details leave additive cleanliness uncertain. The one-capsule serving is convenient, and the normalized PABA cost offers moderate value.

B+ Active Ingredient Quality & BioavailabilityA- Dose, Safety & Label TransparencyC Value

The 50 mg niacinamide amount fits routine B-complex use but is not a high-dose or specialized niacin option. Standard capsule delivery is convenient, though it adds no release technology. The long supply and low per-dose cost make the formula a practical value.

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Sources

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

  1. Effect of intravenous thiamine administration on critically ill patients: A systematic review and meta-analysis of randomized controlled trials.
    Nakanishi N; Abe Y; Matsuo M; Tampo A; Yamada K; Hatakeyama J; Yoshida M; Yamamoto R; Higashibeppu N; Nakamura K; Kotani J · Clinical nutrition (Edinburgh, Scotland) · 2024
    Meta-analysis3,494 participants35 studies pooledMetabolism Boost forThiamin
  2. Physiological and performance responses to supplementation with thiamin and pantothenic acid derivatives.
    Webster MJ · European journal of applied physiology and occupational physiology · 1998
    Randomized trial6 participantsMetabolism Boost forVitamin B5
  3. Intakes of Folate, Vitamin B6, and Vitamin B12 in Relation to All-Cause and Cause-Specific Mortality: A National Population-Based Cohort.
    Bo Y; Xu H; Zhang H; Zhang J; Wan Z; Zhao X; Yu Z · Nutrients · 2022
    Cohort study55,569 participantsGeneral Health forFolate
  4. The responsiveness of plasma homocysteine to small increases in dietary folic acid: a primary care study.
    Schorah CJ; Devitt H; Lucock M; Dowell AC · European journal of clinical nutrition · 1998
    Randomized trial119 participantsGeneral Health forFolate
  5. 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.
    Song S; Song BM; Park HY · The Journal of nutrition · 2023
    Cohort study21,260 participantsGeneral Health forFolate
  6. The concept of folic acid supplementation and its role in prevention of neural tube defect among pregnant women: PRISMA.
    Seyoum Tola F · Medicine · 2024
    Systematic reviewGeneral Health forFolate
  7. Systematic review of adverse health outcomes associated with high serum or red blood cell folate concentrations.
    Colapinto CK; O'Connor DL; Sampson M; Williams B; Tremblay MS · Journal of public health (Oxford, England) · 2017
    Systematic review71,847 participants46 studies pooledGeneral Health forFolate
  8. 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
  9. 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
  10. 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
  11. 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
  12. 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