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B-2 100 mg

Nature's Bounty
4.8
★ ★ ★ ★ ★
(569 ratings)
Riboflavin 100 mg
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Score82
A simple high-potency riboflavin tablet with a clearly disclosed amount. The standard form is less distinctive than active B2, while value is strong.
How scoring works
Quantity:100 Tablet(s) • (100 servings)
Goals:

Score 82

A simple high-potency riboflavin tablet with a clearly disclosed amount. The standard form is less distinctive than active B2, while value is strong.
How scoring works
$8.79($0.08 per serving)
iHerb
$ 8.79
Vitacost
$ 9.29
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Analysis

Riboflavin is the only active and is supplied at 100 mg in a simple daily serving. That high-potency design suits a deliberate B2 plan better than ordinary nutritional maintenance.

The label uses regular vitamin B2 rather than riboflavin 5'-phosphate. A plain tablet is practical, but it does not add a delivery feature for a water-soluble vitamin.

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.

Nutrient quality

84 Highest impact

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 transparency

81 Highest impact

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 satisfaction

70 High impact

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 money

90 Highest impact

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

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Ingredients

IngredientAmount per serving
Riboflavin (Vitamin B2)
 100 mg
Gluten Free Adults 18–50 Dairy Free Sugar Free Vegetarian
Report overview
Riboflavin (Vitamin B2) · 100 mg OverallScore74
F Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA+ Value

The high-potency riboflavin dose comes at a very low serving cost. Standard riboflavin is less directly active than R5P, and the coated tablet may release more slowly than a capsule or liquid. Clear dose disclosure and the absence of listed artificial dyes or synthetic sweeteners support a straightforward formula.

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83 Performance

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

Swanson Ultra
<p>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.</p>
83 Performance

BioCoenzymated Riboflavin 5'-Phosphate 50 mg

Natural Factors
<p>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.</p>
79 Performance

Riboflavin 5'-Phosphate

Thorne
<p>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.</p>
83 Budget

B-2 100 mg

NOW
<p>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.</p>
83 Budget

Riboflavin 100 mg

Swanson
<p>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.</p>
83 Budget

Riboflavin Vitamin B2 100 mg

Nature's Way
<p>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.</p>
83 Value

Vitamin B2 100 mg

NaturesPlus
<p>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.</p>
82 Value

Vitamin B2 100 mg

Nutricost
<p>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.</p>
82 Value

Vitamin B2 100 mg

Solgar
<p>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.</p>
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