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BioCoenzymated Riboflavin 5'-Phosphate 50 mg

Natural Factors
4.9
★ ★ ★ ★ ★
(8493 ratings)
Riboflavin 50 mg
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Score83
A focused 50 mg active-form riboflavin capsule with clear ingredient disclosure. Its main trade-off is reasonable rather than standout serving value.
How scoring works
Quantity:30 Capsule(s) • (30 servings)
Goals:

Score 83

A focused 50 mg active-form riboflavin capsule with clear ingredient disclosure. Its main trade-off is reasonable rather than standout serving value.
How scoring works

Also available as

2 options
18.0mg • 60 Tablet(s) servings B2 18 mg • 60 Tablet(s) • 60 servings $11.29 ($0.18 per serving) 36.0mg • 60 servings B2 36.5 mg • 60 Capsule(s) • 60 servings $32.00 ($0.53 per serving)
$8.37($0.27 per serving)
Vitacost
$ 8.37
iHerb
$ 8.37
Amazon
$ 36.95
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Analysis

Riboflavin 5'-phosphate supplies vitamin B2 in its active coenzyme form at 50 mg. The single-ingredient capsule is focused and easy to evaluate.

The active form avoids the initial conversion step required by standard riboflavin, although most people can still use conventional B2. The label does not provide added purity or release details beyond the named form.

The smaller bottle is better suited to a trial than extended use. Practical value is reasonable, though the smaller supply raises the burden of continued use.

Who is it for
  • Adults deliberately seeking riboflavin 5-phosphate
  • People who prefer an active coenzyme form over standard B2
Best for
  • Active-form vitamin B2 supplementation
  • A concise one-capsule routine

Pros

  • 50 mg riboflavin 5'-phosphate
  • Active coenzyme form
  • Single-active capsule
  • Clearly disclosed amount

Cons

  • Amount remains far above routine nutritional needs
  • No purity standard is provided
  • No sustained-release feature is listed
  • Short bottle supply

Warnings

  • Riboflavin can turn urine bright yellow; the color change is expected and harmless.
  • A high-potency serving may cause nausea or loose stools in sensitive users.
  • The active form does not remove the need to avoid unnecessary stacking with other high-dose B-complex products.

Nutrient quality

94 Highest impact

Form quality is favorable because a riboflavin phosphate form is included. A focused ingredient list keeps the formula aligned with its purpose.

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Ingredient transparency

75 High impact

The active form and weight are named, though phosphate yield is not clarified. Full usage directions and inactive ingredients are not supplied.

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Customer satisfaction

73 High impact

Customer ratings are strong with a very 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

88 Highest impact

Serving economics are reasonable for the supplied formula. A focused ingredient list preserves core value.

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Ingredients

IngredientAmount per serving
Riboflavin (Riboflavin 5-Phosphate)
 50 mg
Gluten Free Adults 18–50 Vegan Dairy Free Sugar Free Vegetarian
Report overview
Riboflavin (Riboflavin 5-Phosphate) · 50 mg OverallScore86
A+ Active Ingredient Quality & BioavailabilityB Dose, Safety & Label TransparencyB+ Value

The bioactive riboflavin 5'-phosphate form and quick-dissolving capsule support efficient delivery. A 50 mg dose fits a high-potency range, and the cost per serving remains moderate. The label appears to state the phosphate compound weight without clarifying the actual riboflavin yield.

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79 Performance

Riboflavin 5'-Phosphate

Thorne
<p>Stronger supplied quality and collection evidence favors active riboflavin 5-phosphate at 36.5 mg over the original’s active riboflavin 5-phosphate at 50 mg. The formula remains closely aligned with riboflavin use, while dose, format, and missing label details remain practical trade-offs.</p>
74 Performance

Riboflavin 400 mg

Seeking Health
<p>Stronger supplied quality and collection evidence favors active riboflavin 5-phosphate at 400 mg over the original’s active riboflavin 5-phosphate at 50 mg. The formula remains closely aligned with riboflavin use, while dose, format, and missing label details remain practical trade-offs.</p>
77 Performance

Nu-Thera Multivitamin with P5P

Kirkman
<p>Stronger supplied quality and collection evidence favors active riboflavin 5-phosphate at 7.5 mg over the original’s active riboflavin 5-phosphate at 50 mg. The formula remains closely aligned with riboflavin use, while dose, format, and missing label details remain practical trade-offs.</p>
83 Budget

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

Swanson Ultra
<p>Lower serving cost makes active riboflavin 5-phosphate at 50 mg the more economical riboflavin option. Compared with the original’s active riboflavin 5-phosphate at 50 mg, the supplied formula changes the dose, form, or supporting ingredients, so those differences should guide the choice.</p>
76 Budget

Coenzymated B-2

Source Naturals
<p>Lower serving cost makes active riboflavin 5-phosphate at 18 mg the more economical riboflavin option. Compared with the original’s active riboflavin 5-phosphate at 50 mg, the supplied formula changes the dose, form, or supporting ingredients, so those differences should guide the choice.</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 active riboflavin 5-phosphate at 50 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 active riboflavin 5-phosphate at 50 mg. The supplied label keeps the riboflavin form and amount assessable, while the different dose, format, or supporting ingredients may affect individual fit.</p>
83 Value

Riboflavin 100 mg

Swanson
<p>A stronger quality-to-cost balance makes standard riboflavin at 100 mg a practical value alternative to the original’s active riboflavin 5-phosphate at 50 mg. The supplied label keeps the riboflavin form and amount assessable, while the different dose, format, or supporting ingredients may affect individual fit.</p>
83 Value

Riboflavin Vitamin B2 100 mg

Nature's Way
<p>A stronger quality-to-cost balance makes standard riboflavin at 100 mg a practical value alternative to the original’s active riboflavin 5-phosphate at 50 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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