PlainVitamins

The Ultimate Antioxidant

by Natural Factors · capsule · 60 capsules

  • On the market (NIH)
  • UPC 0 68958 03500 0
  • DSLD label 76126
  • Serving 2 capsules
  • 30 servings

The Ultimate Antioxidant by Natural Factors lists 11 ingredients, 11 with an amount per serving of 2 capsules, such as 200 mg of N-acetyl-L-cysteine, 100 mg of alpha-lipoic acid, 50 mg of grape seed phytosome extract and 50 mg of green tea phytosome extract. Its current label entered the NIH Dietary Supplement Label Database on July 25, 2017.

What is in The Ultimate Antioxidant?

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

The Ultimate Antioxidant: Supplement Facts rows against the market (DSLD label 76126, January 2026 release)
IngredientAmount% DVAmong products listing it
N-Acetyl-L-Cysteine200 mgN-Acetyl Cysteine in The Ultimate Antioxidant against 1,259 products200 mg per serving; the middle half of products list 55 mg to 500 mg, the median 150 mg.200 mg

Higher than 51% of 1,259 products listing N-acetyl cysteine (median 150 mg). Per day at the most servings: 400 mg.

Alpha-Lipoic Acid100 mgAlpha Lipoic Acid in The Ultimate Antioxidant against 2,407 products100 mg per serving; the middle half of products list 25 mg to 150 mg, the median 50 mg.100 mg

Higher than 56% of 2,407 products listing alpha lipoic acid (median 50 mg). Per day at the most servings: 200 mg.

Grape seed Phytosome extractas Vitis vinifera50 mgGrape in The Ultimate Antioxidant against 1,900 products50 mg per serving; the middle half of products list 25 mg to 100 mg, the median 50 mg.50 mg

48% of 1,900 products listing grape give more (median 50 mg). Per day at the most servings: 100 mg.

Green Tea Phytosome extractas Camellia sinensis50 mgGreen Tea in The Ultimate Antioxidant against 2,595 products50 mg per serving; the middle half of products list 50 mg to 250 mg, the median 100 mg.50 mg

69% of 2,595 products listing green tea give more (median 100 mg). Per day at the most servings: 100 mg.

Turmeric extractas CurcuminTurmeric extract (Form: 95% Curcumin) PlantPart: root Genus: Curcuma Species: longa50 mgTurmeric in The Ultimate Antioxidant against 2,369 products50 mg per serving; the middle half of products list 50 mg to 500 mg, the median 150 mg.50 mg

71% of 2,369 products listing turmeric give more (median 150 mg). Per day at the most servings: 100 mg.

Luteinas Marigold3 mgLutein in The Ultimate Antioxidant against 2,493 products3 mg per serving; the middle half of products list 0.5 mg to 10 mg, the median 3 mg.3 mg

44% of 2,493 products listing lutein give more (median 3 mg). Per day at the most servings: 6 mg.

Zeaxanthinas Marigold120 mcgZeaxanthin in The Ultimate Antioxidant against 1,215 products0.12 mg per serving; the middle half of products list 0.4 mg to 2 mg, the median 1 mg.0.12 mg

90% of 1,215 products listing zeaxanthin give more (median 1 mg). Per day at the most servings: 0.24 mg.

Lycopeneas Tomato3 mgLycopene in The Ultimate Antioxidant against 1,691 products3 mg per serving; the middle half of products list 0.5 mg to 5 mg, the median 1.2 mg.3 mg

Higher than 64% of 1,691 products listing lycopene (median 1.2 mg). Per day at the most servings: 6 mg.

Rosemary extractas Carnosic AcidRosemary extract (Form: 6% Carnosic Acid) Genus: Rosemarinus Species: officinalis15 mgRosemary in The Ultimate Antioxidant against 332 products15 mg per serving; the middle half of products list 25 mg to 100 mg, the median 50 mg.15 mg

79% of 332 products listing rosemary give more (median 50 mg). Per day at the most servings: 30 mg.

Broccoli200 mgBroccoli in The Ultimate Antioxidant against 530 products200 mg per serving; the middle half of products list 40 mg to 250 mg, the median 100 mg.200 mg

Higher than 69% of 530 products listing broccoli (median 100 mg). Per day at the most servings: 400 mg.

Sulforaphane200 mcgSulforaphane in The Ultimate Antioxidant against 82 products0.2 mg per serving; the middle half of products list 0.375 mg to 25 mg, the median 1 mg.0.2 mg

83% of 82 products listing sulforaphane give more (median 1 mg). Per day at the most servings: 0.4 mg.

Source: NIH ODS Dietary Supplement Label Database, label 76126 (entered July 25, 2017), 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:

  • 90% of the 1,215 products that print an amount of zeaxanthin list more than its 0.12 mg of zeaxanthin (median 1 mg).
  • 83% of the 82 products that print an amount of sulforaphane list more than its 0.2 mg of sulforaphane (median 1 mg).

The NIH database records 1 to 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?

The products whose ingredient lists overlap most with The Ultimate Antioxidant's, rare ingredients counting for more.

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: 2 capsules 1-2 times per day or as directed by a health professional.
For maximum benefit, take with the appropriate MultiStart multivitamin formula from Natural Factors.
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.
Contains soy.
Allergens and what it does not contain
Contains no artificial colors, preservatives, or sweeteners; no dairy, sugar, wheat, gluten, yeast, egg, fish, shellfish, salt, tree nuts, or GMOs.
Storage
For freshness, store in a cool, dry place.

Source: label statements in DSLD label 76126.

What else is on the label?

Other ingredients: Rice powder, Gelatin Capsule, Magnesium Stearate, Silica.

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 The Ultimate Antioxidant have?

One label is on file, entered on July 25, 2017.

  1. Label 76126 (current) Entered July 25, 2017 · on the market · 60 capsules · UPC 0 68958 03500 0

DSLD also links this label to: The Ultimate Antioxidant With Alpha-Lipoic Acid And Lutein (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 Factors Canada (manufacturer). All Natural Factors products.

Where next?