PlainVitamins

Quantum-B

by StayWell · other (e.g. tea bag) · 60 caplets

  • On the market (NIH)
  • UPC 0 14654 80505 8
  • DSLD label 46613
  • Serving 1 caplet; amounts per 2 caplets

Quantum-B by StayWell lists 10 ingredients, 10 with an amount per serving of 2 caplets, such as 30 mg of vitamin B1, 34 mg of vitamin B2, 50 mg of vitamin B3 and 20 mg of vitamin B6. Its current label entered the NIH Dietary Supplement Label Database on June 25, 2015.

What is in Quantum-B?

Each row as the label prints it, per serving of 2 caplets. 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).

Quantum-B: Supplement Facts rows against the market (DSLD label 46613, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin B1as Thiamine MononitrateVitamin B1 (Form: as Thiamine Mononitrate)30 mg2,000%Thiamin in Quantum-B against 9,830 products30 mg per serving; the middle half of products list 1.5 mg to 25 mg, the median 5 mg.DV 1.2 mg30 mg

Higher than 78% of 9,830 products listing thiamin (median 5 mg). Per day at the most servings: 60 mg.

Vitamin B2as Riboflavin34 mg2,000%Riboflavin in Quantum-B against 9,824 products34 mg per serving; the middle half of products list 1.7 mg to 25 mg, the median 4 mg.DV 1.3 mg34 mg

Higher than 84% of 9,824 products listing riboflavin (median 4 mg). Per day at the most servings: 68 mg.

Vitamin B3as NiacinamideVitamin B3 (Form: as Niacinamide)50 mg250%Niacin in Quantum-B 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). Per day at the most servings: 100 mg. 2.9 times the adult UL a day.

Vitamin B6as Pyridoxine HydrochlorideVitamin B6 (Form: as Pyridoxine HCl)20 mg1,000%Vitamin B6 in Quantum-B against 15,277 products20 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg20 mg

Higher than 71% of 15,277 products listing vitamin B6 (median 6 mg). Per day at the most servings: 40 mg.

Folic Acid800 mcg200%Folate in Quantum-B 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). Per day at the most servings: 1,600 mcg.

Vitamin B12as CyanocobalaminVitamin B12 (Form: as Cyanocobalamin)250 mcg4,167%Vitamin B12 in Quantum-B against 14,425 products250 mcg per serving; the middle half of products list 6 mcg to 200 mcg, the median 36 mcg.DV 2.4 mcg250 mcg

Higher than 77% of 14,425 products listing vitamin B12 (median 36 mcg). Per day at the most servings: 500 mcg.

Biotin300 mcg100%Biotin in Quantum-B against 9,447 products300 mcg per serving; the middle half of products list 50 mcg to 300 mcg, the median 200 mcg.DV 30 mcg300 mcg

Higher than 53% of 9,447 products listing biotin (median 200 mcg). Per day at the most servings: 600 mcg.

Vitamin B5as Calcium D-PantothenateVitamin B5 (Form: as Calcium D-Pantothenate)50 mg500%Pantothenic Acid (Vitamin B5) in Quantum-B 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). Per day at the most servings: 100 mg.

Choline550 mg100%*Choline in Quantum-B against 4,738 products550 mg per serving; the middle half of products list 18 mg to 100 mg, the median 40 mg.DV 550 mgUL 3,500 mg550 mg

Higher than 97% of 4,738 products listing choline (median 40 mg). Per day at the most servings: 1,100 mg.

Choline Bitartrate1,350 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 46613 (entered June 25, 2015), 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 2 servings a day, the most its directions give, the label lists 100 mg of niacin, 2.9 times the adult Tolerable Upper Intake Level.
  • Its 550 mg of choline is higher than 97% of the 4,738 choline products that print an amount; 119 list more.

The NIH database records 2 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?

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
Directions: Adults: Take one (1) caplet with the morning meal and a second caplet with the evening meal for round-the-clock B-Complex with Choline protection.
Warnings
KEEP OUT OF THE REACH OF CHILDREN.
Allergens and what it does not contain
Free of: milk and milk by-products, egg and egg by-products, fish and fish by-products, shellfish and shell fish by-products, tree nuts, wheat and wheat by-products, peanuts and peanut by-products and gluten
Storage
Keep bottle tightly closed. Store in a cool, dry place at controlled room temperature 15(0)-30(0)C (59(0)-86(0)F).

Source: label statements in DSLD label 46613.

What else is on the label?

Other ingredients: Hypromellose, Microcrystalline Cellulose, Maltodextrin, Dicalcium Phosphate, Pharmaceutical Glaze, Mono & Diglycerides, Silicon Dioxide, Magnesium Stearate, Talc, Ethyl Vanillin, Guar Gum, partially hydrogenated Vegetable Oil.

How many labels does Quantum-B have?

One label is on file, entered on June 25, 2015.

  1. Label 46613 (current) Entered June 25, 2015 · on the market · 60 caplets · UPC 0 14654 80505 8

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

Who makes it?

The label names Tishcon Corp. (manufacturer), Westbury, NY. All StayWell products.

Where next?