PlainVitamins

B-50 Complex 50 mg

by Source Naturals · tablet or pill · 50 tablets

  • On the market (NIH)
  • UPC 0 21078 00420 2
  • DSLD label 295590
  • Serving 1 to 2 tablets; amounts per 1 tablet
  • 50 servings

B-50 Complex 50 mg by Source Naturals lists 11 ingredients, 11 with an amount per serving of 1 tablet, such as 50 mg of thiamine, 50 mg of riboflavin, 50 mg of niacinamide and 50 mg of vitamin B6. Its current label entered the NIH Dietary Supplement Label Database on June 22, 2023.

What is in B-50 Complex 50 mg?

Each row as the label prints it, per serving of 1 tablet. 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 Complex 50 mg: Supplement Facts rows against the market (DSLD label 295590, January 2026 release)
IngredientAmount% DVAmong products listing it
Thiamineas Vitamin B150 mg3,333%Thiamin in B-50 Complex 50 mg 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 mg2,941%Riboflavin in B-50 Complex 50 mg 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).

Niacinamide50 mg250%Niacin in B-50 Complex 50 mg 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 mg2,500%Vitamin B6 in B-50 Complex 50 mg 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).

Folateas Folic Acid800 mcg200%Folate in B-50 Complex 50 mg against 7,022 products800 mcg per serving; the middle half of products list 200 mcg to 400 mcg, the median 400 mcg.800 mcg

Higher than 81% of 7,022 products listing folate (median 400 mcg).

Vitamin B12as Cyanocobalamin50 mcg833%Vitamin B12 in B-50 Complex 50 mg 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 mcg17%Biotin in B-50 Complex 50 mg 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 D-Pantothenate100 mg1,000%Pantothenic Acid (Vitamin B5) in B-50 Complex 50 mg against 10,060 products100 mg per serving; the middle half of products list 6 mg to 50 mg, the median 12 mg.DV 5 mg100 mg

Higher than 86% of 10,060 products listing pantothenic acid (vitamin B5) (median 12 mg).

Cholineas Choline Bitartrate50 mg9%*Choline in B-50 Complex 50 mg against 4,738 products50 mg per serving; the middle half of products list 18 mg to 100 mg, the median 40 mg.DV 550 mgUL 3,500 mg50 mg

Higher than 54% of 4,738 products listing choline (median 40 mg).

Inositol50 mgInositol in B-50 Complex 50 mg against 4,042 products50 mg per serving; the middle half of products list 10 mg to 80 mg, the median 30 mg.50 mg

Higher than 55% of 4,042 products listing inositol (median 30 mg).

Paba30 mgPABA in B-50 Complex 50 mg against 1,610 products30 mg per serving; the middle half of products list 10 mg to 50 mg, the median 25 mg.30 mg

Higher than 53% of 1,610 products listing PABA (median 25 mg).

* % Daily Value computed from the printed amount and the FDA Daily Value (21 CFR 101.9); the label prints none for that row.

Source: NIH ODS Dietary Supplement Label Database, label 295590 (entered June 22, 2023), 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 Use: 1 to 2 tablets daily.
Warnings
Note: If you are pregnant, may become pregnant, or breastfeeding, consult your health care professional before using this product.
Do not use if either tamper-evident seal is broken or missing.
Keep out of the reach of children.

Source: label statements in DSLD label 295590.

What else is on the label?

Other ingredients: Sorbitol, Stearic Acid, Silica, Modified Cellulose Gum, Magnesium Sterate.

How many labels does B-50 Complex 50 mg have?

5 labels are on file under this name since June 23, 2017: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 295590 (current) Entered June 22, 2023 · on the market · 50 tablets · UPC 0 21078 00420 2
  2. Label 272736 Entered August 23, 2022 · on the market · 100 tablets · UPC 0 21078 00421 9
  3. Label 211792 Entered January 25, 2020 · off the market December 22, 2021 · 100 tablets · UPC 0 21078 00421 9
  4. Label 211788 Entered January 25, 2020 · off the market July 6, 2022 · 50 tablets · UPC 0 21078 00420 2
  5. Label 75406 Entered June 23, 2017 · on the market · 250 tablets · UPC 0 21078 00422 6

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

Who makes it?

The label names Source Naturals, Inc. (distributor), Santa Cruz, CA. All Source Naturals products.

Where next?