PlainVitamins

B-50

by NOW · capsule · 250 veg capsules

  • On the market (NIH)
  • UPC 7 33739 00422 2
  • DSLD label 313581
  • Serving 1 veg capsule
  • 250 servings

B-50 by NOW lists 12 ingredients, 12 with an amount per serving of 1 veg capsule, such as 50 mg of thiamine, 50 mg of riboflavin, 50 mg of niacin and 50 mg of vitamin B6. Its current label entered the NIH Dietary Supplement Label Database on November 22, 2024.

What is in B-50?

Each row as the label prints it, per serving of 1 veg capsule. The capsule beside an amount places it among every product in the NIH database that lists the same ingredient: the bar is the middle half of their amounts, the line in it the median, the whiskers the 10th and 90th percentiles; the green tick is the FDA Daily Value and the red dashed tick the adult upper limit (IOM).

B-50: Supplement Facts rows against the market (DSLD label 313581, January 2026 release)
IngredientAmount% DVAmong products listing it
Thiamineas Vitamin B150 mg4,167%Thiamin in B-50 against 9,830 products50 mg per serving; the middle half of products list 1.5 mg to 25 mg, the median 5 mg.DV 1.2 mg50 mg

Higher than 82% of 9,830 products listing thiamin (median 5 mg).

Riboflavinas Vitamin B250 mg3,846%Riboflavin in B-50 against 9,824 products50 mg per serving; the middle half of products list 1.7 mg to 25 mg, the median 4 mg.DV 1.3 mg50 mg

Higher than 86% of 9,824 products listing riboflavin (median 4 mg).

Niacinas Vitamin B350 mg313%Niacin in B-50 against 12,413 products50 mg per serving; the middle half of products list 13.2 mg to 48 mg, the median 20 mg.DV 16 mgUL 35 mg50 mg

Higher than 75% of 12,413 products listing niacin (median 20 mg). 1.4 times the adult UL a day.

Vitamin B6as Pyridoxine Hydrochloride50 mg2,941%Vitamin B6 in B-50 against 15,277 products50 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg50 mg

Higher than 87% of 15,277 products listing vitamin B6 (median 6 mg).

Folate680 mcg DFE170%
Folic Acid400 mcg
Vitamin B12as Cyanocobalamin50 mcg2,083%Vitamin B12 in B-50 against 14,425 products50 mcg per serving; the middle half of products list 6 mcg to 200 mcg, the median 36 mcg.DV 2.4 mcg50 mcg

Higher than 51% of 14,425 products listing vitamin B12 (median 36 mcg).

Biotin50 mcg167%Biotin in B-50 against 9,447 products50 mcg per serving; the middle half of products list 50 mcg to 300 mcg, the median 200 mcg.DV 30 mcg50 mcg

73% of 9,447 products listing biotin give more (median 200 mcg).

Pantothenic Acidas Calcium Pantothenate50 mg1,000%Pantothenic Acid (Vitamin B5) in B-50 against 10,060 products50 mg per serving; the middle half of products list 6 mg to 50 mg, the median 12 mg.DV 5 mg50 mg

Higher than 72% of 10,060 products listing pantothenic acid (vitamin B5) (median 12 mg).

Cholineas Choline Bitartrate25 mg5%Choline in B-50 against 4,738 products25 mg per serving; the middle half of products list 18 mg to 100 mg, the median 40 mg.DV 550 mgUL 3,500 mg25 mg

59% of 4,738 products listing choline give more (median 40 mg).

Paba25 mgPABA in B-50 against 1,610 products25 mg per serving; the middle half of products list 10 mg to 50 mg, the median 25 mg.25 mg

47% of 1,610 products listing PABA give more (median 25 mg).

Inositol25 mgInositol in B-50 against 4,042 products25 mg per serving; the middle half of products list 10 mg to 80 mg, the median 30 mg.25 mg

53% of 4,042 products listing inositol give more (median 30 mg).

Source: NIH ODS Dietary Supplement Label Database, label 313581 (entered November 22, 2024), version 9.4.0. See the label on DSLD or its label image (PDF). Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.

Is that a lot?

The rows in the top or bottom tenth of the products that list the same ingredient, and any above the adult upper limit at the most servings a day the directions give:

  • At 1 serving a day, the most its directions give, the label lists 50 mg of niacin, 1.4 times the adult Tolerable Upper Intake Level.

The NIH database records one serving a day from the label's directions; its % Daily Values are for adults and children 4 or more years of age. The directions as printed are further down this page.

The Tolerable Upper Intake Level is the most of a nutrient per day, from food, water and supplements together, that is likely to pose no risk for almost all adults (Institute of Medicine, 2011). It does not apply under medical supervision. This page compares labels; it is not medical advice.

Sources: amounts from the DSLD label; Daily Values from 21 CFR 101.9(c)(8)(iv); adult upper limits from the Institute of Medicine's DRI summary tables (2011). How positions are computed.

Which products have the closest formulas?

6 products list the very same ingredients; the nearest amounts come first.

Source: ingredient lists of every product's current label in DSLD (version 9.4.0); similarity weights each shared ingredient by how rare it is.

What does the label say about taking it?

Quoted from the label as DSLD transcribed it: the maker's words, including any claim about what the product does, which the FDA has not evaluated and PlainVitamins does not endorse.

Directions
Suggested Usage: Take 1 capsule daily with a meal.
Warnings
Caution: For adults only.
Consult physician if pregnant/nursing, taking medication, or have a medical condition.
Keep out of reach of children.
This product contains Biotin which may interfere with some blood test results. Go to nowfoods.com/biotinlab for details.
Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.
Allergens and what it does not contain
Not manufactured with wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients.
Non-GMO
Storage
Store in a cool, dry place after opening.

Source: label statements in DSLD label 313581.

What else is on the label?

Other ingredients: Hypromellose, Microcrystalline Cellulose, Silicon Dioxide, Magnesium Stearate.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Crescent H Halal; Triangle K (Kosher); GMP Quality Assured.

How many labels does B-50 have?

25 labels are on file under this name since October 1, 2012: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 313581 (current) Entered November 22, 2024 · on the market · 250 veg capsules · UPC 7 33739 00422 2
  2. Label 313574 Entered October 24, 2024 · on the market · 100 tablets · UPC 7 33739 00426 0
  3. Label 313583 Entered June 20, 2024 · on the market · 250 tablets · UPC 7 33739 00428 4
  4. Label 313580 Entered June 20, 2024 · on the market · 100 veg capsules · UPC 7 33739 00420 8
  5. Label 244571 Entered February 25, 2021 · off the market February 12, 2024 · 100 veg capsules · UPC 7 33739 00420 8
  6. Label 77496 Entered August 22, 2017 · off the market February 12, 2024 · 250 tablets · UPC 7 33739 00428 4
  7. Label 72034 Entered March 24, 2017 · off the market February 12, 2024 · 250 veg capsules · UPC 7 33739 00422 2
  8. Label 72031 Entered March 24, 2017 · off the market August 9, 2023 · 100 veg capsules · UPC 7 33739 00420 8
  9. Label 70197 Entered January 25, 2017 · off the market February 12, 2024 · 100 tablets · UPC 7 33739 00426 0
  10. Label 56822 Entered February 23, 2016 · off the market March 7, 2017 · 100 veg capsules · UPC 7 33739 00420 8
  11. Label 55218 Entered January 25, 2016 · off the market March 7, 2017 · 250 veg capsules · UPC 7 33739 00422 2
  12. Label 49712 Entered August 25, 2015 · off the market November 24, 2015 · 250 capsules · UPC 7 33739 00422 2
  13. Label 49711 Entered August 25, 2015 · off the market December 23, 2015 · 100 capsules · UPC 7 33739 00420 8
  14. Label 47740 Entered July 24, 2015 · off the market May 25, 2017 · 250 tablets · UPC 7 33739 00428 4
  15. Label 47738 Entered July 24, 2015 · off the market November 30, 2016 · 100 tablets · UPC 7 33739 00426 0
  16. Label 40222 Entered December 29, 2014 · off the market June 30, 2015 · 250 tablets · UPC 7 33739 00428 4
  17. Label 38637 Entered October 27, 2014 · off the market June 30, 2015 · 100 tablets · UPC 7 33739 00426 0
  18. Label 26840 Entered October 25, 2013 · off the market July 31, 2015 · 250 capsules · UPC 7 33739 00422 2
  19. Label 26839 Entered October 25, 2013 · off the market October 24, 2012 · 100 capsules · UPC 7 33739 00420 8
  20. Label 13878 Entered October 1, 2012 · off the market November 26, 2014 · 250 tablets · UPC 7 33739 00428 4

And 5 more labels.

DSLD also links this label to: B-50 Caps B-Complex Vitamins (image difference, same product), B-50 Caps B-Complex Vitamins (package size difference, same product).

Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).

Who makes it?

The label names NOW Foods (manufacturer), Bloomingdale, IL. All NOW products.

Where next?