PlainVitamins

B-Complex #12

by Thorne Research · capsule · 60 vegetarian capsules

  • Off the market since November 2017 (NIH)
  • UPC 6 93749 11203 7
  • DSLD label 63550
  • Serving 1 capsule

B-Complex #12 by Thorne Research lists 17 ingredients, 17 with an amount per serving of 1 capsule, such as 40 mg of thiamine, 28.6 mg of riboflavin, 80 mg of niacin and 23.4 mg of vitamin B6. Its current label entered the NIH Dietary Supplement Label Database on August 24, 2016.

What is in B-Complex #12?

Each row as the label prints it, per serving of 1 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-Complex #12: Supplement Facts rows against the market (DSLD label 63550, January 2026 release)
IngredientAmount% DVAmong products listing it
Thiamineas Thiamine HydrochlorideThiamin (Form: as Thiamin HCl)40 mg2,667%Thiamin in B-Complex #12 against 9,830 products40 mg per serving; the middle half of products list 1.5 mg to 25 mg, the median 5 mg.DV 1.2 mg40 mg

Higher than 81% of 9,830 products listing thiamin (median 5 mg). Per day at the most servings: 120 mg.

Riboflavin28.6 mg1,682%Riboflavin in B-Complex #12 against 9,824 products28.6 mg per serving; the middle half of products list 1.7 mg to 25 mg, the median 4 mg.DV 1.3 mg28.6 mg

Higher than 82% of 9,824 products listing riboflavin (median 4 mg). Per day at the most servings: 85.8 mg.

Riboflavin25 mg
Riboflavin 5'-Phosphate Sodium3.6 mg
Niacinas NiacinamideNiacin (Form: as Niacinamide)80 mg400%Niacin in B-Complex #12 against 12,413 products80 mg per serving; the middle half of products list 13.2 mg to 48 mg, the median 20 mg.DV 16 mgUL 35 mg80 mg

Higher than 87% of 12,413 products listing niacin (median 20 mg). Per day at the most servings: 240 mg. 6.9 times the adult UL a day.

Vitamin B623.4 mg1,170%Vitamin B6 in B-Complex #12 against 15,277 products23.4 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg23.4 mg

Higher than 75% of 15,277 products listing vitamin B6 (median 6 mg). Per day at the most servings: 70.2 mg.

Pyridoxine Hydrochloride20 mg
Pyridoxal 5-Phosphate3.4 mg
Folate400 mcg100%Folate in B-Complex #12 against 7,022 products400 mcg per serving; the middle half of products list 200 mcg to 400 mcg, the median 400 mcg.400 mcg

24% of 7,022 products listing folate give more (median 400 mcg). Per day at the most servings: 1,200 mcg.

Calcium Folinate200 mcg0%*

This amount is far outside what other labels list for calcium, or disagrees with the label's own %DV: possibly a unit or transcription slip in the database. Check the label image on DSLD.

L-5-Methyltetrahydrofolateas Glucosamine Salt, L-5-Methyltetrahydrofolic AcidL-5-Methyltetrahydrofolate (Form: from L-5-Methyltetrahydrofolic Acid, Glucosamine Salt)200 mcg
Vitamin B12600 mcg10,000%Vitamin B12 in B-Complex #12 against 14,425 products600 mcg per serving; the middle half of products list 6 mcg to 200 mcg, the median 36 mcg.DV 2.4 mcg600 mcg

Higher than 88% of 14,425 products listing vitamin B12 (median 36 mcg). Per day at the most servings: 1,800 mcg.

Adenosylcobalamin300 mcg
Methylcobalamin300 mcg
Biotin80 mcg27%Biotin in B-Complex #12 against 9,447 products80 mcg per serving; the middle half of products list 50 mcg to 300 mcg, the median 200 mcg.DV 30 mcg80 mcg

67% of 9,447 products listing biotin give more (median 200 mcg). Per day at the most servings: 240 mcg.

Pantothenic Acidas Calcium PantothenatePantothenic Acid (Form: as Calcium Pantothenate)45 mg450%Pantothenic Acid (Vitamin B5) in B-Complex #12 against 10,060 products45 mg per serving; the middle half of products list 6 mg to 50 mg, the median 12 mg.DV 5 mg45 mg

Higher than 71% of 10,060 products listing pantothenic acid (vitamin B5) (median 12 mg). Per day at the most servings: 135 mg.

Choline Citrate40 mg7%*Choline in B-Complex #12 against 4,738 products40 mg per serving; the middle half of products list 18 mg to 100 mg, the median 40 mg.DV 550 mgUL 3,500 mg40 mg

48% of 4,738 products listing choline give more (median 40 mg). Per day at the most servings: 120 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 63550 (entered August 24, 2016), version 9.4.0. See the label on DSLD. 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 3 servings a day, the most its directions give, the label lists 240 mg of niacin, 6.9 times the adult Tolerable Upper Intake Level.

The NIH database records 1 to 3 servings 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?

1 product lists 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: Take 1 capsule one to three times daily or as recommended by your health-care practitioner.
Warnings
Tamper Evident: Use only if bottle is sealed.
If pregnant, consult your health-care practitioner before using this product.
Storage
Store tightly sealed in a cool, dry place.

Source: label statements in DSLD label 63550.

What else is on the label?

Other ingredients: Hypromellose (derived from Cellulose) Capsule, Microcrystalline Cellulose, Calcium Laurate, Silicon Dioxide.

How many labels does B-Complex #12 have?

3 labels are on file under this name since November 21, 2012: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 63550 (current) Entered August 24, 2016 · off the market November 28, 2017 · 60 vegetarian capsules · UPC 6 93749 11203 7
  2. Label 35423 Entered July 25, 2014 · off the market January 15, 2016 · 60 vegetarian capsules · UPC 6 93749 11203 7
  3. Label 15695 Entered November 21, 2012 · off the market June 26, 2014 · 60 vegetarian capsules · UPC 6 93749 11203 7

DSLD also links this label to: B-Complex #12 (image difference, same product), B-Complex #12 (image difference, same product), B-Complex #12 (image difference, same product), B-Complex #12 (image difference, same product), B-Complex #12 (image difference, same product), B-Complex #12 (image difference, same product), B-Complex #12 (image 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 Thorne Research, Inc. (manufacturer), Dover, Idaho. All Thorne Research products.

Where next?