PlainVitamins

B-Complex

by Mason Natural · softgel capsule · 100 softgels

  • On the market (NIH)
  • UPC 3 11845 06011 2
  • DSLD label 318737
  • Serving 1 softgel
  • 100 servings

B-Complex by Mason Natural lists 7 ingredients, 7 with an amount per serving of 1 softgel, such as 1.5 mg of thiamine, 2 mg of riboflavin, 10 mg of niacin and 0.1 mg of vitamin B6. Its current label entered the NIH Dietary Supplement Label Database on September 25, 2024.

What is in B-Complex?

Each row as the label prints it, per serving of 1 softgel. 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-Complex: Supplement Facts rows against the market (DSLD label 318737, January 2026 release)
IngredientAmount% DVAmong products listing it
Thiamineas Thiamine Hydrochloride1.5 mg125%Thiamin in B-Complex against 9,830 products1.5 mg per serving; the middle half of products list 1.5 mg to 25 mg, the median 5 mg.DV 1.2 mg1.5 mg

66% of 9,830 products listing thiamin give more (median 5 mg).

Riboflavin2 mg154%Riboflavin in B-Complex against 9,824 products2 mg per serving; the middle half of products list 1.7 mg to 25 mg, the median 4 mg.DV 1.3 mg2 mg

60% of 9,824 products listing riboflavin give more (median 4 mg).

Niacinas Niacinamide10 mg63%Niacin in B-Complex against 12,413 products10 mg per serving; the middle half of products list 13.2 mg to 48 mg, the median 20 mg.DV 16 mgUL 35 mg10 mg

77% of 12,413 products listing niacin give more (median 20 mg).

Vitamin B6as Pyridoxine Hydrochloride0.1 mg6%Vitamin B6 in B-Complex against 15,277 products0.1 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg0.1 mg

99% of 15,277 products listing vitamin B6 give more (median 6 mg).

Pantothenic Acidas D-Calcium Pantothenate1 mg20%Pantothenic Acid (Vitamin B5) in B-Complex against 10,060 products1 mg per serving; the middle half of products list 6 mg to 50 mg, the median 12 mg.DV 5 mg1 mg

97% of 10,060 products listing pantothenic acid (vitamin B5) give more (median 12 mg).

Brewer's Yeast100 mgBrewer's Yeast in B-Complex against 52 products100 mg per serving; the middle half of products list 50 mg to 1,000 mg, the median 450 mg.100 mg

63% of 52 products listing Brewer's yeast give more (median 450 mg).

Liver, Defatted70 mgLiver in B-Complex against 221 products70 mg per serving; the middle half of products list 50 mg to 1,000 mg, the median 250 mg.70 mg

70% of 221 products listing liver give more (median 250 mg).

Source: NIH ODS Dietary Supplement Label Database, label 318737 (entered September 25, 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:

  • 99% of the 15,277 products that print an amount of vitamin B6 list more than its 0.1 mg of vitamin B6 (median 6 mg).
  • 97% of the 10,060 products that print an amount of pantothenic acid (vitamin B5) list more than its 1 mg of pantothenic acid (vitamin B5) (median 12 mg).

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?

The products whose ingredient lists overlap most with B-Complex's, rare ingredients counting for more.

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
Directions: Adults - Take one softgel daily, preferably with food, as a dietary supplement.
Warnings
Allergen certification: This product contains soy and gluten.
Keep out of reach of children.
Tamper-evident seal: Do not use product if seal appears tampered with.
Allergens and what it does not contain
Guaranteed no added: Sugar, starch, corn, wheat, dairy, egg, fragrance, artificial flavors, preservatives.
Storage
Store in a dry place under controlled room temperature: 20 - 25 degrees C (68 - 77 degrees F).

Source: label statements in DSLD label 318737.

What else is on the label?

Other ingredients: Soybean Oil, Bovine Gelatin, Glycerin, Soy Lecithin, Water, Purified, Sorbitol, Vegetable Oil, Hydrogenated, Beeswax, Titanium Dioxide, FD&C Red #40, FD&C Blue #1.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Laboratory tested Mason guarantee cGMP Certified Good Manufacturing Practice Certified.

How many labels does B-Complex have?

One label is on file, entered on September 25, 2024.

  1. Label 318737 (current) Entered September 25, 2024 · on the market · 100 softgels · UPC 3 11845 06011 2

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

Who makes it?

The label names Mason Vitamins, Inc. (distributor), Miami Lakes, FL. All Mason Natural products.

Where next?