PlainVitamins

Stress B Formula

by Natural Factors · tablet or pill · 90 tablets

  • On the market (NIH)
  • UPC 0 68958 01131 8
  • DSLD label 220210
  • Serving 1 tablet

Stress B Formula by Natural Factors lists 13 ingredients, 13 with an amount per serving of 1 tablet, such as 1,000 mg of vitamin C, 25 mg of thiamine, 25 mg of riboflavin and 25 mg of niacin. Its current label entered the NIH Dietary Supplement Label Database on May 22, 2020.

What is in Stress B Formula?

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 Formula: Supplement Facts rows against the market (DSLD label 220210, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Cas Ascorbic Acid1,000 mg1,111%Vitamin C in Stress B Formula against 18,583 products1,000 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg1,000 mg

Higher than 91% of 18,583 products listing vitamin C (median 100 mg).

Thiamineas Thiamine Hydrochloride25 mg2,083%Thiamin in Stress B Formula against 9,830 products25 mg per serving; the middle half of products list 1.5 mg to 25 mg, the median 5 mg.DV 1.2 mg25 mg

Higher than 72% of 9,830 products listing thiamin (median 5 mg).

Riboflavinas Vitamin B225 mg1,923%Riboflavin in Stress B Formula against 9,824 products25 mg per serving; the middle half of products list 1.7 mg to 25 mg, the median 4 mg.DV 1.3 mg25 mg

Higher than 75% of 9,824 products listing riboflavin (median 4 mg).

Niacinas Niacinamide25 mg156%Niacin in Stress B Formula against 12,413 products25 mg per serving; the middle half of products list 13.2 mg to 48 mg, the median 20 mg.DV 16 mgUL 35 mg25 mg

Higher than 56% of 12,413 products listing niacin (median 20 mg).

Vitamin B6as Pyridoxine Hydrochloride25 mg1,471%Vitamin B6 in Stress B Formula against 15,277 products25 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg25 mg

Higher than 76% of 15,277 products listing vitamin B6 (median 6 mg).

Folate1,700 mcg DFE425%
Folic Acid1,000 mcg
Vitamin B12as Cyanocobalamin25 mcg1,042%Vitamin B12 in Stress B Formula against 14,425 products25 mcg per serving; the middle half of products list 6 mcg to 200 mcg, the median 36 mcg.DV 2.4 mcg25 mcg

54% of 14,425 products listing vitamin B12 give more (median 36 mcg).

Biotinas Vitamin B725 mcg83%Biotin in Stress B Formula against 9,447 products25 mcg per serving; the middle half of products list 50 mcg to 300 mcg, the median 200 mcg.DV 30 mcg25 mcg

92% of 9,447 products listing biotin give more (median 200 mcg).

Pantothenic Acidas Calcium Pantothenate25 mg500%Pantothenic Acid (Vitamin B5) in Stress B Formula against 10,060 products25 mg per serving; the middle half of products list 6 mg to 50 mg, the median 12 mg.DV 5 mg25 mg

Higher than 61% of 10,060 products listing pantothenic acid (vitamin B5) (median 12 mg).

Cholineas Choline Bitartrate25 mg5%Choline in Stress B Formula against 4,738 products25 mg per serving; the middle half of products list 18 mg to 100 mg, the median 40 mg.DV 550 mgUL 3,500 mg25 mg

59% of 4,738 products listing choline give more (median 40 mg).

Inositol25 mgInositol in Stress B Formula against 4,042 products25 mg per serving; the middle half of products list 10 mg to 80 mg, the median 30 mg.25 mg

53% of 4,042 products listing inositol give more (median 30 mg).

Para-Aminobenzoic Acid25 mgPABA in Stress B Formula against 1,610 products25 mg per serving; the middle half of products list 10 mg to 50 mg, the median 25 mg.25 mg

47% of 1,610 products listing PABA give more (median 25 mg).

Source: NIH ODS Dietary Supplement Label Database, label 220210 (entered May 22, 2020), 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:

  • Its 1,000 mg of vitamin C is higher than 91% of the 18,583 vitamin C products that print an amount; 445 list more.
  • 92% of the 9,447 products that print an amount of biotin list more than its 25 mcg of biotin (median 200 mcg).

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?

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
Suggested Usage: 1 tablet per day or as directed by a health professional.
Warnings
Cautions: As with any supplement, consult your health professional before use if you are pregnant, breastfeeding or trying to conceive, or if you are taking medication, have a medical condition or anticipate a surgery.
Keep out of the reach of children.
Sealed for your protection. Do not use if seal is broken.
Allergens and what it does not contain
Contains no artificial colors, preservatives, or sweeteners; no dairy, starch, wheat, gluten, yeast, soy, egg, fish, shellfish, animal products, tree nuts, or GMO's.
Storage
For freshness, store in a cool, dry place.

Source: label statements in DSLD label 220210.

What else is on the label?

Other ingredients: Microcrystalline Cellulose, Coating, Croscarmellose Sodium, Magnesium Stearate.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): isura Non-GMO - Mass Spec Documentation Lab tested; Purity & Potency Guaranteed.

How many labels does Stress B Formula have?

2 labels are on file under this name since June 23, 2017: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 220210 (current) Entered May 22, 2020 · on the market · 90 tablets · UPC 0 68958 01131 8
  2. Label 74829 Entered June 23, 2017 · off the market March 11, 2019 · 90 tablets · UPC 0 68958 01131 8

DSLD also links this label to: Stress B Formula Plus 1000 mg C (image difference, same product), Stress B Formula Plus 1000 mg C (package size 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 Natural Factors Canada (manufacturer). All Natural Factors products.

Where next?