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B-2 100 mg Riboflavin

Carlson
4.9
★ ★ ★ ★ ★
(862 ratings)
Riboflavin 100 mg
Product Image
Score80
A focused 100 mg riboflavin tablet with a small calcium addition. Strong bottle value helps, but the standard B2 form and nutritionally minor calcium keep it basic.
How scoring works
Quantity:250 Tablet(s) • (250 servings)
Goals:

Score 80

A focused 100 mg riboflavin tablet with a small calcium addition. Strong bottle value helps, but the standard B2 form and nutritionally minor calcium keep it basic.
How scoring works

Also available as

1 option
100 servings B2 100 mg • 100 Tablet(s) • 100 servings $8.42 ($0.08 per serving)
$18.87($0.07 per serving)
Pure Formulas
$ 18.87
iHerb
$ 18.87
iHerb
$ 18.87
Vitacost
$ 18.87
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Analysis

The formula keeps attention on one clearly quantified nutrient rather than a broad B-complex. Its 100 mg serving supplies a substantial amount for users who specifically want riboflavin.

Standard riboflavin is easy to assess but lacks the direct coenzyme form used by some alternatives. Dicalcium phosphate adds a modest calcium amount that is not large enough to make the tablet a meaningful mineral supplement.

The very large bottle is convenient for established repeat use. 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
  • Very large 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
  • Added calcium is nutritionally modest

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

82 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

68 High impact

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

.

Value for money

89 Highest impact

Serving economics are highly favorable for the supplied amount. Form advantages only partly offset the premium.

.
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Ingredients

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

The 100 mg dose provides high-potency riboflavin support at very good value. Standard riboflavin requires conversion before use, and the pressed tablet may release more slowly than capsules or liquids. The label data show no artificial colors, flavors, or synthetic sweeteners.

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Loading alternative details
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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