Vitamin B2 100 mg

Vitamin B2 100 mg

Natural Factors4.8 (2,261 ratings)
Format:Tablet Quantity: 90 Tablet(s) · 90 servings
$9.07 $0.10 per serving
iHerbLowest$9.07Vitacost$9.07

About this product

A single 100 mg riboflavin active provides focused vitamin B2 supplementation without unrelated nutrients. The amount is far above routine dietary needs but remains easy to understand and compare.

Standard riboflavin is well established, though it is not the pre-formed coenzyme version. The tablet gives no special absorption or sustained-release advantage.

The bottle provides a practical extended supply. Serving value is favorable for a focused single-ingredient supplement.

Who is it for
  • Adults intentionally seeking a high-potency riboflavin supplement
  • People who prefer a simple one-active tablet
Best for
  • Focused vitamin B2 supplementation
  • A straightforward single-ingredient routine

Pros

  • Clearly disclosed 100 mg amount
  • Single-active formula
  • Convenient one-tablet serving
  • Practical bottle supply

Cons

  • Uses standard riboflavin rather than an active coenzyme form
  • Amount is far above routine nutritional needs
  • No special delivery feature is listed
  • Complete excipient details are not provided in the input

Warnings

  • High-dose riboflavin commonly turns urine bright yellow; the color change is expected and harmless.
  • A large riboflavin serving may cause nausea or loose stools in sensitive users.
  • Long-term high-dose use is best reserved for a specific purpose rather than added casually to other B-complex products.

Product analysis

81 out of 100
A simple high-potency riboflavin tablet with a clearly disclosed amount. The standard form is less distinctive than active B2, while value is strong.

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

Nutrient quality84

The riboflavin amount is meaningful, although the standard form requires conversion. A focused ingredient list keeps the formula aligned with its purpose.

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Ingredient transparency81

Active ingredients and amounts are disclosed without a hidden key dose. Full usage directions and inactive ingredients are not supplied.

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Customer satisfaction70

Customer ratings are strong with a large volume of ratings. Specific review comments are absent, so recurring complaints and purpose-matched experiences cannot be judged.

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Value for money89

Serving economics are highly favorable for the supplied amount. A focused ingredient list preserves core value.

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Format
Tablet
Container
90 Tablet(s)
Per serving
$0.10
Also available
B-2 100 mg RiboflavinB2 100 mg • 100 Tablet(s) • 100 servings$8.42
Customer rating
4.8 · 2,261 ratings
Report analysis

Ingredients

IngredientAmount per servingScore
Riboflavin
100 mg 72
Gluten Free Adults 18–50 Vegan Dairy Free Sugar Free Vegetarian
Report overview
Riboflavin · 100 mg OverallScore72
F Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA+ Value
Vitamin B2 100 mg lists 100 mg of standard riboflavin, a high-potency amount. The available ingredient details identify no artificial additives, and the standard form requires no separate phosphate-yield disclosure. Its serving price is low, with the ingredient amount clearly stated.
How this ingredient is rated

Active Ingredient Quality & Bioavailability30

The product lists standard riboflavin rather than a phosphate form.
Riboflavin Form Quality
The ingredient is identified as plain riboflavin, the standard form.

Dose, Safety & Label Transparency100

The serving provides 100 mg, a high-potency amount, and the available details identify no artificial additives.
Dosage for Energy & Metabolism
The 100 mg amount is in the high-potency range described for riboflavin.
R5P Elemental Yield Transparency
The listed standard form has no phosphate-salt yield to clarify.
Additive Purity
No artificial additives are identified in the available ingredient information.

Value100

The per-serving cost is low.
Price per Serving Value
The selected-serving price is on the low side.
View ingredientView products
Loading alternative details
83 Performance

R-5-P Coenzymated Vitamin B-2 50 mg

Swanson Ultra

Active riboflavin 5-phosphate provides a clearer form-quality upgrade over the original’s standard riboflavin at 100 mg. The supplied label provides active riboflavin 5-phosphate at 50 mg, though the phosphate weight may not state the exact riboflavin yield and full directions are missing.

83 Performance

BioCoenzymated Riboflavin 5'-Phosphate 50 mg

Natural Factors

Active riboflavin 5-phosphate provides a clearer form-quality upgrade over the original’s standard riboflavin at 100 mg. The supplied label provides active riboflavin 5-phosphate at 50 mg, though the phosphate weight may not state the exact riboflavin yield and full directions are missing.

79 Performance

Riboflavin 5'-Phosphate

Thorne

Active riboflavin 5-phosphate provides a clearer form-quality upgrade over the original’s standard riboflavin at 100 mg. The supplied label provides active riboflavin 5-phosphate at 36.5 mg, though the phosphate weight may not state the exact riboflavin yield and full directions are missing.

83 Budget

B-2 100 mg

NOW

Lower serving cost makes standard riboflavin at 100 mg the more economical riboflavin option. Compared with the original’s standard riboflavin at 100 mg, the supplied formula changes the dose, form, or supporting ingredients, so those differences should guide the choice.

83 Budget

Riboflavin 100 mg

Swanson

Lower serving cost makes standard riboflavin at 100 mg the more economical riboflavin option. Compared with the original’s standard riboflavin at 100 mg, the supplied formula changes the dose, form, or supporting ingredients, so those differences should guide the choice.

83 Budget

Riboflavin Vitamin B2 100 mg

Nature's Way

Lower serving cost makes standard riboflavin at 100 mg the more economical riboflavin option. Compared with the original’s standard riboflavin at 100 mg, the supplied formula changes the dose, form, or supporting ingredients, so those differences should guide the choice.

83 Value

Vitamin B2 100 mg

NaturesPlus

A stronger quality-to-cost balance makes standard riboflavin at 100 mg a practical value alternative to the original’s standard riboflavin at 100 mg. The supplied label keeps the riboflavin form and amount assessable, while the different dose, format, or supporting ingredients may affect individual fit.

82 Value

Vitamin B2 100 mg

Nutricost

A stronger quality-to-cost balance makes standard riboflavin at 100 mg a practical value alternative to the original’s standard riboflavin at 100 mg. The supplied label keeps the riboflavin form and amount assessable, while the different dose, format, or supporting ingredients may affect individual fit.

82 Value

Vitamin B2 100 mg

Solgar

A stronger quality-to-cost balance makes standard riboflavin at 100 mg a practical value alternative to the original’s standard riboflavin at 100 mg. The supplied label keeps the riboflavin form and amount assessable, while the different dose, format, or supporting ingredients may affect individual fit.

Report alternatives