PlainVitamins

Ultra-Stress

by Nature's Plus · tablet or pill · 90 tablets

  • Off the market since February 2022 (NIH)
  • UPC 0 97467 01231 8
  • DSLD label 190960
  • Serving 1 tablet

Ultra-Stress by Nature's Plus lists 13 ingredients, 13 with an amount per serving of 1 tablet, such as 500 mg of vitamin C, 125 mg of thiamine, 125 mg of riboflavin and 125 mg of niacin. Its current label entered the NIH Dietary Supplement Label Database on February 25, 2019.

What is in Ultra-Stress?

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).

Ultra-Stress: Supplement Facts rows against the market (DSLD label 190960, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Cas Ascorbic Acid500 mg833%Vitamin C in Ultra-Stress 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).

Thiamineas Thiamine Hydrochloride, Vitamin B1Thiamin (Form: as Thiamine HCl) (Alt. Name: Vitamin B-1)125 mg8,333%Thiamin in Ultra-Stress against 9,830 products125 mg per serving; the middle half of products list 1.5 mg to 25 mg, the median 5 mg.DV 1.2 mg125 mg

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

Riboflavinas Vitamin B2125 mg7,353%Riboflavin in Ultra-Stress against 9,824 products125 mg per serving; the middle half of products list 1.7 mg to 25 mg, the median 4 mg.DV 1.3 mg125 mg

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

Niacinas NiacinamideNiacin (Form: as Niacinamide)125 mg625%Niacin in Ultra-Stress against 12,413 products125 mg per serving; the middle half of products list 13.2 mg to 48 mg, the median 20 mg.DV 16 mgUL 35 mg125 mg

Higher than 93% of 12,413 products listing niacin (median 20 mg). 3.6 times the adult UL a day.

Vitamin B6as Pyridoxine HydrochlorideVitamin B-6 (Form: as Pyridoxine HCl)125 mg6,250%Vitamin B6 in Ultra-Stress against 15,277 products125 mg per serving; the middle half of products list 2 mg to 20 mg, the median 6 mg.DV 1.7 mgUL 100 mg125 mg

Higher than over 99% of 15,277 products listing vitamin B6 (median 6 mg). 1.3 times the adult UL a day.

Folateas Folic Acid400 mcg100%Folate in Ultra-Stress 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)500 mcg8,333%Vitamin B12 in Ultra-Stress against 14,425 products500 mcg per serving; the middle half of products list 6 mcg to 200 mcg, the median 36 mcg.DV 2.4 mcg500 mcg

Higher than 82% of 14,425 products listing vitamin B12 (median 36 mcg).

Biotin125 mcg42%Biotin in Ultra-Stress against 9,447 products125 mcg per serving; the middle half of products list 50 mcg to 300 mcg, the median 200 mcg.DV 30 mcg125 mcg

59% of 9,447 products listing biotin give more (median 200 mcg).

Pantothenic Acidas Calcium PantothenatePantothenic Acid (Form: as Calcium Pantothenate)200 mg2,000%Pantothenic Acid (Vitamin B5) in Ultra-Stress against 10,060 products200 mg per serving; the middle half of products list 6 mg to 50 mg, the median 12 mg.DV 5 mg200 mg

Higher than 95% of 10,060 products listing pantothenic acid (vitamin B5) (median 12 mg).

Iron Complexas Iron Amino Acid ChelateIron Complex (Form: as Iron Amino Acid Chelate)20 mg111%

The label names the compound (Iron Complex); its amount is likely the compound's weight, not the iron it holds, so it is not placed among other products.

Inositol75 mgInositol in Ultra-Stress against 4,042 products75 mg per serving; the middle half of products list 10 mg to 80 mg, the median 30 mg.75 mg

Higher than 72% of 4,042 products listing inositol (median 30 mg).

Paba50 mgPABA in Ultra-Stress against 1,610 products50 mg per serving; the middle half of products list 10 mg to 50 mg, the median 25 mg.50 mg

Higher than 62% of 1,610 products listing PABA (median 25 mg).

Cholineas Choline BitartrateCholine (Form: as Choline Bitartrate)32 mg6%*Choline in Ultra-Stress against 4,738 products32 mg per serving; the middle half of products list 18 mg to 100 mg, the median 40 mg.DV 550 mgUL 3,500 mg32 mg

52% of 4,738 products listing choline give more (median 40 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 190960 (entered February 25, 2019), 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 125 mg of thiamin is higher than 99% of the 9,830 thiamin products that print an amount; 110 list more.
  • Its 125 mg of riboflavin is higher than 99% of the 9,824 riboflavin products that print an amount; 92 list more.
  • At 1 serving a day, the most its directions give, the label lists 125 mg of niacin, 3.6 times the adult Tolerable Upper Intake Level.
  • At 1 serving a day, the most its directions give, the label lists 125 mg of vitamin B6, 1.3 times the adult Tolerable Upper Intake Level.
  • Its 200 mg of pantothenic acid (vitamin B5) is higher than 95% of the 10,060 pantothenic acid (vitamin B5) products that print an amount; 406 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?

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: As a dietary supplement, one tablet daily, preferably with a meal.
Warnings
Warning: Accidental overdose of iron-containing products is a leading cause of fatal poisoning in children under 6. Keep this product out of reach of children. In case of accidental overdose, call a physician or poison control center immediately.
Allergens and what it does not contain
Free from artificial colors and preservatives.
Gluten Free
Storage
Keep tightly closed in a cool, dry place.

Source: label statements in DSLD label 190960.

What else is on the label?

Other ingredients: Stearic Acid, Hydroxypropyl Methylcellulose, Rose Hips, Microcrystalline Cellulose, isolated Soy Protein, Rice Bran, Magnesium Stearate, Pharmaceutical Glaze.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Vegetarian; Quality Natural Supplements.

How many labels does Ultra-Stress have?

3 labels are on file under this name since February 25, 2013: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 190960 (current) Entered February 25, 2019 · off the market February 28, 2022 · 90 tablets · UPC 0 97467 01231 8
  2. Label 49290 Entered August 25, 2015 · off the market June 11, 2018 · 90 tablets · UPC 0 97467 01231 8
  3. Label 18347 Entered February 25, 2013 · off the market February 28, 2022 · 30 tablets · UPC 0 97467 01229 5

DSLD also links this label to: Ultra-Stress Sustained Release (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 Natural Organics Laboratories, Inc. makers of Nature's Plus (manufacturer), Amityville, NY. All Nature's Plus products.

Where next?