PlainVitamins

Mega B-Complex

by DC · tablet or pill · 30 tablets

  • On the market (NIH)
  • DSLD label 266799
  • Serving 1 tablet
  • 30 servings

Mega B-Complex by DC lists 16 ingredients, 10 with an amount per serving of 1 tablet, such as 150 mg of thiamine, 150 mg of riboflavin, 150 mg of niacin and 100 mg of vitamin B6; 6 sit inside a blend without their own amounts. Its current label entered the NIH Dietary Supplement Label Database on June 16, 2022.

What is in Mega B-Complex?

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).

Mega B-Complex: Supplement Facts rows against the market (DSLD label 266799, January 2026 release)
IngredientAmount% DVAmong products listing it
Thiamine150 mg12,500%Thiamin in Mega B-Complex against 9,830 products150 mg per serving; the middle half of products list 1.5 mg to 25 mg, the median 5 mg.DV 1.2 mg150 mg

Higher than 99% of 9,830 products listing thiamin (median 5 mg).

Riboflavin150 mg11,538%Riboflavin in Mega B-Complex against 9,824 products150 mg per serving; the middle half of products list 1.7 mg to 25 mg, the median 4 mg.DV 1.3 mg150 mg

Higher than over 99% of 9,824 products listing riboflavin (median 4 mg).

Niacin150 mg938%Niacin in Mega B-Complex against 12,413 products150 mg per serving; the middle half of products list 13.2 mg to 48 mg, the median 20 mg.DV 16 mgUL 35 mg150 mg

Higher than 94% of 12,413 products listing niacin (median 20 mg). 4.3 times the adult UL a day.

Vitamin B6100 mg5,882%Vitamin B6 in Mega B-Complex against 15,277 products100 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg100 mg

Higher than 96% of 15,277 products listing vitamin B6 (median 6 mg).

Folate800 mcg DFE200%
Folic Acid400 mcg
Vitamin B12150 mcg6,250%Vitamin B12 in Mega B-Complex against 14,425 products150 mcg per serving; the middle half of products list 6 mcg to 200 mcg, the median 36 mcg.DV 2.4 mcg150 mcg

Higher than 72% of 14,425 products listing vitamin B12 (median 36 mcg).

Biotin150 mcg500%Biotin in Mega B-Complex against 9,447 products150 mcg per serving; the middle half of products list 50 mcg to 300 mcg, the median 200 mcg.DV 30 mcg150 mcg

51% of 9,447 products listing biotin give more (median 200 mcg).

Pantothenic Acid150 mg3,000%Pantothenic Acid (Vitamin B5) in Mega B-Complex against 10,060 products150 mg per serving; the middle half of products list 6 mg to 50 mg, the median 12 mg.DV 5 mg150 mg

Higher than 93% of 10,060 products listing pantothenic acid (vitamin B5) (median 12 mg).

Choline50 mg9%Choline in Mega B-Complex 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).

B Complex Blend100 mg
Pabain the blend, no amount given
Inositolin the blend, no amount given
Proprietary Blend7 mg
Alfalfa juice concentratein the blend, no amount given
Soy Lecithinin the blend, no amount given
Rice Branin the blend, no amount given
Parsley ext.Parsley ext. PlantPart: leaf Note: 4:1in the blend, no amount given

Source: NIH ODS Dietary Supplement Label Database, label 266799 (entered June 16, 2022), 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:

  • Its 150 mg of thiamin is higher than 99% of the 9,830 thiamin products that print an amount; 78 list more.
  • Its 150 mg of riboflavin is higher than over 99% of the 9,824 riboflavin products that print an amount; 71 list more.
  • At 1 serving a day, the most its directions give, the label lists 150 mg of niacin, 4.3 times the adult Tolerable Upper Intake Level.
  • Its 100 mg of vitamin B6 is higher than 96% of the 15,277 vitamin B6 products that print an amount; 173 list more.
  • Its 150 mg of pantothenic acid (vitamin B5) is higher than 93% of the 10,060 pantothenic acid (vitamin B5) products that print an amount; 557 list more.

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?

3 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
Directions: As a dietary supplement, take 1 tablet daily.
Warnings
Contains soy ingredients.
Tamper Evident: Do not use this product if imprinted foil seal under cap is broken or missing.
Keep out of reach of children.
Caution: If you are pregnant or nursing do not take this product.
Allergens and what it does not contain
Gluten free
Storage
Keep tightly closed. Store at room temperature: 59 degrees - 86 degrees F (15 degrees to 30 degrees C).

Source: label statements in DSLD label 266799.

What else is on the label?

Other ingredients: Thiamine Hydrochloride, Riboflavin, Niacinamide, Calcium Pantothenate, Pyridoxine Hydrochloride, Choline Bitartrate, Inositol, Para-Aminobenzoic Acid, Folic Acid, Cyanocobalamin, Biotin, Vegetable Cellulose, Silica, Vegetable Magnesium Stearate.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Quali Pure.

How many labels does Mega B-Complex have?

3 labels are on file under this name since April 22, 2021: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 266799 (current) Entered June 16, 2022 · on the market · 30 tablets
  2. Label 265896 Entered April 11, 2022 · on the market · 30 tablets · UPC 0 52301 41730 8
  3. Label 244835 Entered April 22, 2021 · on the market · 30 tablets · UPC 0 52301 41730 8

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

Who makes it?

The label names Dee Cee Laboratories, Inc. (manufacturer), White House, TN. All DC products.

Where next?