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B-Complex plus Vitamin C

21st Century
4.8
★ ★ ★ ★ ★
(28678 ratings)
Niacin 50 mg
Thiamin 15 mg
Riboflavin 14.3 mg
Product Image
Score80
A low-cost vitamin C and B-vitamin tablet with sensible B6. It is not a complete B complex because folate, B12, and biotin are missing.
How scoring works
Quantity:100 Tablet(s) • (100 servings)
Goals:
Energy

Score 80

A low-cost vitamin C and B-vitamin tablet with sensible B6. It is not a complete B complex because folate, B12, and biotin are missing.
How scoring works
$6.18($0.06 per serving)
Pure Formulas
$ 6.18
iHerb
$ 7.49
Amazon
$ 7.49
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Analysis

The tablet combines 300 mg of vitamin C with thiamine, riboflavin, niacinamide, B6, and pantothenic acid. Those amounts are useful for broad metabolic nutrition without pushing B6 into a high-dose range.

Folate, vitamin B12, and biotin are absent from the supplied ingredient list. Thiamine mononitrate and pyridoxine hydrochloride are basic forms, while repeated calcium-source entries reduce label clarity.

One tablet per day and strong value make the product practical for users who mainly want vitamin C with selected B vitamins. Anyone seeking a complete B complex or methylation-focused folate and B12 coverage will need another option.

Who is it for
  • Adults wanting vitamin C with selected B vitamins
  • Value-focused users seeking one daily tablet
  • People who do not need folate or B12 from this product
Best for
  • Vitamin C with basic B-vitamin support
  • Low-cost daily supplementation
  • Moderate energy-metabolism coverage

Pros

  • Provides 300 mg of vitamin C
  • Keeps vitamin B6 moderate
  • Uses niacinamide
  • Requires one tablet daily

Cons

  • Does not list folate
  • Does not list vitamin B12
  • Does not list biotin
  • Uses conventional thiamine and B6 forms

Warnings

  • The 300 mg vitamin C amount may cause stomach upset in sensitive users.
  • The 175 mg calcium contribution can reduce levothyroxine absorption if taken together, so follow pharmacy guidance on dose separation.

Nutrient quality

70 High impact

The formula uses conventional thiamine, pyridoxine, and niacinamide forms. Niacin is relatively high, while vitamin B6 and the other listed amounts are measured.

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Ingredient transparency

87 Highest impact

Specific amounts are supplied for every listed active ingredient. No proprietary blend hides the listed doses.

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Customer satisfaction

72 High impact

The supplied aggregate rating is very strong. No complaint themes or purpose-specific experience details are supplied.

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Value for money

88 Highest impact

The formula and favorable qualitative positioning support strong value. Vitamin C is useful, while the added calcium contributes little to energy support.

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Report analysis

Goals

Energy
Essential Energy Nutrients
Energy
Impact
High effect
A- Goal FitC+ Strength of SupportC CoverageA Formula Quality
Vitamin B5 · 10 mgRiboflavin · 14.3 mgThiamin · 15 mg

B vitamins directly support metabolic conversion of food into usable energy. The formula covers several B-vitamin pathways but omits vitamin B12, limiting completeness.

Thiamine, riboflavin, niacin, and B6 are clearly quantified at maintenance or moderate amounts. Mostly standard forms and the absence of bioactive B12 keep form quality ordinary rather than exceptional.

Study evidence
Riboflavin Mixed 6 studies
Thiamin Disputed 12 studies

Ingredients

IngredientAmount per serving
Vitamin C (Ascorbic Acid)
 300 mg
Thiamine (Thiamine Mononitrate, Vitamin B1)
 15 mg
Riboflavin (Vitamin B2)
 14.3 mg
Niacin (Niacinamide)
 50 mg
Vitamin B6 (Pyridoxine Hydrochloride)
 5 mg
Pantothenic Acid (D-Calcium Pantothenate)
 10 mg
Calcium (Calcium Carbonate, Dicalcium Phosphate)
 175 mg
Gluten Free Adults 18–50
Report overview
Niacin (Niacinamide) · 50 mg OverallScore83
C+ Active Ingredient Quality & BioavailabilityA- Dose, Safety & Label TransparencyA+ Value

The clearly disclosed niacinamide amount fits a practical B-complex serving. The plain tablet offers no special release feature, but the accompanying B vitamins and vitamin C broaden its general-use role. Its very low serving cost provides strong value.

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Thiamin (Thiamine Mononitrate, Vitamin B1) · 15 mg OverallScore65
B- Active Ingredient Quality & BioavailabilityB- Dose, Safety & Label TransparencyD- Value

Thiamine mononitrate provides a conventional water-soluble source, while the 15 mg amount offers moderate rather than high potency. The exact dose is clear, but the standard tablet and missing excipient details do not establish a premium delivery system. Cost efficiency is weak because the active amount is small relative to the product cost.

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Riboflavin (Vitamin B2) · 14.3 mg OverallScore53
F Active Ingredient Quality & BioavailabilityC Dose, Safety & Label TransparencyB- Value

The 14.3 mg serving provides only low maintenance support, and standard riboflavin requires conversion before use. The hard-pressed tablet may release it more slowly than a capsule or powder, while no artificial colors, flavors, or synthetic sweeteners appear in the supplied ingredients. Very low pricing makes the maintenance dose reasonably economical.

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Loading alternative details
82 Performance

B-Complex with Rice Bran

NaturesPlus Source of Life Garden
<p>Methylfolate and methylcobalamin strengthen a moderate-potency complete B-complex that avoids extreme dosing. Compared with the original, the broader coverage, clearer forms, or more purposeful nutrient profile offers a meaningful quality advantage, subject to the stated trade-off.</p>
84 Performance

Super B-Complex with Folic Acid plus Vitamin C

Nature's Bounty
<p>A complete B-complex provides sensible everyday amounts and added vitamin C, though its large biotin amount can interfere with some laboratory tests. Compared with the original, the broader coverage, clearer forms, or more purposeful nutrient profile offers a meaningful quality advantage, subject to the stated trade-off.</p>
75 Performance

Mega-Liposomal B-Complex+ Organic Fruit Flavor

Aurora NutraScience
<p>Activated riboflavin and methylcobalamin improve the form profile, while folic acid, pyridoxine hydrochloride, and very high thiamine keep it from being consistently refined. Compared with the original, the broader coverage, clearer forms, or more purposeful nutrient profile offers a meaningful quality advantage, subject to the stated trade-off.</p>
80 Budget

Super Vitamin B-Complex

Spring Valley
<p>The formula covers the core B vitamins plus vitamin C at clearly measured amounts, but the chemical forms are not provided and thiamine is unusually high. Its lower serving cost improves everyday economy compared with the original, with the noted coverage or form limitations.</p>
79 Budget

Super Vitamin B-Complex

Spring Valley
<p>The formula covers the core B vitamins plus vitamin C at clearly measured amounts, but the chemical forms are not provided and thiamine is unusually high. Its lower serving cost improves everyday economy compared with the original, with the noted coverage or form limitations.</p>
81 Budget

Super B-Complex

Nature Made
<p>Broad B-vitamin coverage and vitamin C create a complete daily formula, although folic acid, pyridoxine, and cyanocobalamin are conventional forms. Its serving cost is roughly equal to the original rather than cheaper; it is included because fewer than three eligible candidates cost less.</p>
81 Value

B Complex

Thompson
<p>A broad B-complex includes all core B vitamins plus modest choline, while conventional forms and a high niacin amount keep it basic. The complete or clearly disclosed B-vitamin profile provides a practical quality-to-cost balance compared with the original, while the conventional forms and dosing cautions remain relevant.</p>
78 Value

B-50 Complex

21st Century
<p>The complete B-50 profile is clearly disclosed, but conventional forms and a high pyridoxine amount reduce its fit for long-term daily use. The complete or clearly disclosed B-vitamin profile provides a practical quality-to-cost balance compared with the original, while the conventional forms and dosing cautions remain relevant.</p>
77 Value

B-Complex with C

Mason Natural
<p>Vitamin C and six B vitamins are supplied in clearly identified conventional forms, but folate, vitamin B12, and biotin are missing. The complete or clearly disclosed B-vitamin profile provides a practical quality-to-cost balance compared with the original, while the conventional forms and dosing cautions remain relevant.</p>
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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 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