Stress B

by 21st Century · tablet or pill · 66 tablets

  • On the market (NIH)
  • UPC 7 40985 22327 7
  • DSLD label 11599
  • Serving 1 tablet

Stress B by 21st Century lists 11 ingredients, 11 with an amount per serving of 1 tablet, such as 500 mg of vitamin C, 30 IU of vitamin E, 10 mg of thiamine and 10 mg of riboflavin. Its current label entered the NIH Dietary Supplement Label Database on August 24, 2012.

What is in Stress B?

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).

Stress B: Supplement Facts rows against the market (DSLD label 11599, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Cas Ascorbic Acid500 mg833%Vitamin C in Stress B against 18,583 products500 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg500 mg

Higher than 81% of 18,583 products listing vitamin C (median 100 mg).

Vitamin Eas DL-Alpha-Tocopheryl AcetateVitamin E (Form: as DL-Alpha Tocopheryl Acetate)30 IU100%Vitamin E in Stress B against 6,459 products30 IU per serving; the middle half of products list 15 IU to 100 IU, the median 30 IU.30 IU

44% of 6,459 products listing vitamin E give more (median 30 IU).

Thiamineas Thiamine MononitrateThiamin (Form: as Thiamin Mononitrate)10 mg667%Thiamin in Stress B against 9,830 products10 mg per serving; the middle half of products list 1.5 mg to 25 mg, the median 5 mg.DV 1.2 mg10 mg

Higher than 59% of 9,830 products listing thiamin (median 5 mg).

Riboflavinas Vitamin B210 mg588%Riboflavin in Stress B against 9,824 products10 mg per serving; the middle half of products list 1.7 mg to 25 mg, the median 4 mg.DV 1.3 mg10 mg

Higher than 61% of 9,824 products listing riboflavin (median 4 mg).

Niacinas NiacinamideNiacin (Form: as Niacinamide)100 mg500%Niacin in Stress B against 12,413 products100 mg per serving; the middle half of products list 13.2 mg to 48 mg, the median 20 mg.DV 16 mgUL 35 mg100 mg

Higher than 88% of 12,413 products listing niacin (median 20 mg). 2.9 times the adult UL a day.

Vitamin B6as Pyridoxine HydrochlorideVitamin B-6 (Form: as Pyridoxine Hydrochloride)5 mg250%Vitamin B6 in Stress B against 15,277 products5 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg5 mg

51% of 15,277 products listing vitamin B6 give more (median 6 mg).

Folic Acid400 mcg100%Folate in Stress B 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).

Vitamin B12as CyanocobalaminVitamin B-12 (Form: as Cyanocobalamin)12 mcg200%Vitamin B12 in Stress B against 14,425 products12 mcg per serving; the middle half of products list 6 mcg to 200 mcg, the median 36 mcg.DV 2.4 mcg12 mcg

63% of 14,425 products listing vitamin B12 give more (median 36 mcg).

Biotin45 mcg15%Biotin in Stress B against 9,447 products45 mcg per serving; the middle half of products list 50 mcg to 300 mcg, the median 200 mcg.DV 30 mcg45 mcg

79% of 9,447 products listing biotin give more (median 200 mcg).

Pantothenic Acidas D-Calcium PantothenatePantothenic Acid (Form: as d Calcium Pantothenate)20 mg200%Pantothenic Acid (Vitamin B5) in Stress B against 10,060 products20 mg per serving; the middle half of products list 6 mg to 50 mg, the median 12 mg.DV 5 mg20 mg

Higher than 55% of 10,060 products listing pantothenic acid (vitamin B5) (median 12 mg).

Calciumas Calcium CarbonateCalcium (Form: as Calcium Carbonate)70 mg7%Calcium in Stress B against 17,831 products70 mg per serving; the middle half of products list 50 mg to 252 mg, the median 115 mg.DV 1,300 mgUL 2,500 mg70 mg

65% of 17,831 products listing calcium give more (median 115 mg).

Source: NIH ODS Dietary Supplement Label Database, label 11599 (entered August 24, 2012), 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 1 serving a day, the most its directions give, the label lists 100 mg of niacin, 2.9 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?

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
Directions: Take one (1) tablet daily with any meal for maximum daily results, or as directed by your healthcare provider. Do not exceed recommended dosage.
Warnings
Keep out of reach of children.
Do not use if product appears to be tampered with or seal is broken.
Allergens and what it does not contain
No Added Sugar, Salt, Yeast, Preservatives.
Storage
Store at room temperature.

Source: label statements in DSLD label 11599.

What else is on the label?

Other ingredients: Cellulose, Starch, Stearic Acid, Croscarmellose Sodium, Silicon Dioxide, Titanium Dioxide, Polydextrose, Magnesium Stearate, Artificial Colors Added.

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

How many labels does Stress B have?

One label is on file, entered on August 24, 2012.

  1. Label 11599 (current) Entered August 24, 2012 · on the market · 66 tablets · UPC 7 40985 22327 7

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

Who makes it?

The label names 21st Century Healthcare, Inc. (manufacturer), Tempe, AZ. All 21st Century products.

Where next?