PlainVitamins

OxyGuard

by Karuna · capsule · 90 vegetarian capsules

  • On the market (NIH)
  • DSLD label 24800
  • Serving 3 capsules
  • 30 servings

OxyGuard by Karuna lists 10 ingredients, 10 with an amount per serving of 3 capsules, such as 1,000 mg of vitamin C, 400 IU of vitamin E, 200 mcg of selenium and 20,000 IU of beta-carotene. Its current label entered the NIH Dietary Supplement Label Database on August 23, 2013.

What is in OxyGuard?

Each row as the label prints it, per serving of 3 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).

OxyGuard: Supplement Facts rows against the market (DSLD label 24800, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Cas Ascorbic Acid1,000 mg1,667%Vitamin C in OxyGuard 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).

Vitamin Eas D-Alpha-Tocopheryl Acetate400 IU1,333%Vitamin E in OxyGuard against 6,459 products400 IU per serving; the middle half of products list 15 IU to 100 IU, the median 30 IU.400 IU

Higher than 91% of 6,459 products listing vitamin E (median 30 IU).

Seleniumas L-Selenomethionine200 mcg286%Selenium in OxyGuard against 7,658 products200 mcg per serving; the middle half of products list 27 mcg to 100 mcg, the median 55 mcg.DV 55 mcgUL 400 mcg200 mcg

Higher than 82% of 7,658 products listing selenium (median 55 mcg).

Beta-CaroteneNatural Beta-carotene20,000 IUVitamin A in OxyGuard against 5,772 products20,000 IU per serving; the middle half of products list 2,000 IU to 5,000 IU, the median 4,000 IU.20,000 IU

Higher than 95% of 5,772 products listing vitamin A (median 4,000 IU).

Alpha-Carotene4,750 IU
QuercetinQuercetin Note: a bioflavonoid35 mgQuercetin in OxyGuard against 1,548 products35 mg per serving; the middle half of products list 26.5 mg to 250 mg, the median 100 mg.35 mg

70% of 1,548 products listing quercetin give more (median 100 mg).

Luteinas MarigoldsLutein (Form: from Marigolds)10 mgLutein in OxyGuard against 2,493 products10 mg per serving; the middle half of products list 0.5 mg to 10 mg, the median 3 mg.10 mg

Higher than 71% of 2,493 products listing lutein (median 3 mg).

Lycopeneas TomatoesLycopene (Form: from Tomatoes)6 mgLycopene in OxyGuard against 1,691 products6 mg per serving; the middle half of products list 0.5 mg to 5 mg, the median 1.2 mg.6 mg

Higher than 79% of 1,691 products listing lycopene (median 1.2 mg).

Zeaxanthin493 mcgZeaxanthin in OxyGuard against 1,215 products0.493 mg per serving; the middle half of products list 0.4 mg to 2 mg, the median 1 mg.0.493 mg

68% of 1,215 products listing zeaxanthin give more (median 1 mg).

Cryptoxanthin16 mcgCryptoxanthin in OxyGuard against 73 products16 mcg per serving; the middle half of products list 10 mcg to 98 mcg, the median 10 mcg.16 mcg

Higher than 58% of 73 products listing cryptoxanthin (median 10 mcg).

Source: NIH ODS Dietary Supplement Label Database, label 24800 (entered August 23, 2013), 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.
  • Its 400 IU of vitamin E is higher than 91% of the 6,459 vitamin E products that print an amount; 120 list more.
  • Its 20,000 IU of beta-carotene (filed by NIH under vitamin A) is higher than 95% of the 5,772 vitamin A products that print an amount; 227 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?

The products whose ingredient lists overlap most with OxyGuard'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 use for adults: Three capsules daily, taken with meals, or as directed by your health care practitioner.
Allergens and what it does not contain
This product contains no yeast, wheat, soy, corn, milk, salt, sugar, artificial coloring, preservatives or flavoring.
Storage
Keep in a cool, dry place, tightly capped.

Source: label statements in DSLD label 24800.

What else is on the label?

Other ingredients: Microcrystalline Cellulose, Vegetable Stearine.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): KARUNA(R) RESPONSIBLE NUTRITION(TM).

How many labels does OxyGuard have?

One label is on file, entered on August 23, 2013.

  1. Label 24800 (current) Entered August 23, 2013 · on the market · 90 vegetarian capsules

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

Who makes it?

The label names Karuna Corporation (manufacturer), Novato, CA. All Karuna products.

Where next?