PlainVitamins

Klean Antioxidant

by Klean Athlete · capsule · 90 vegetarian capsules

  • On the market (NIH)
  • UPC 3 10539 03842 0
  • DSLD label 237072
  • Serving 3 vegetarian capsules
  • 30 servings

Klean Antioxidant by Klean Athlete lists 6 ingredients, 6 with an amount per serving of 3 vegetarian capsules, such as 125 mg of vitamin C, 300 mcg of biotin, 1,000 mg of acetyl-L-carnitine HCl and 400 mg of alpha lipoic acid. Its current label entered the NIH Dietary Supplement Label Database on October 23, 2020.

What is in Klean Antioxidant?

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

Klean Antioxidant: Supplement Facts rows against the market (DSLD label 237072, January 2026 release)
IngredientAmount% DVAmong products listing it
Vitamin Cas Ascorbic Acid125 mg139%Vitamin C in Klean Antioxidant against 18,583 products125 mg per serving; the middle half of products list 60 mg to 270 mg, the median 100 mg.DV 90 mgUL 2,000 mg125 mg

Higher than 56% of 18,583 products listing vitamin C (median 100 mg).

Biotin300 mcg1,000%Biotin in Klean Antioxidant against 9,447 products300 mcg per serving; the middle half of products list 50 mcg to 300 mcg, the median 200 mcg.DV 30 mcg300 mcg

Higher than 53% of 9,447 products listing biotin (median 200 mcg).

Acetyl-L-Carnitine HCl1,000 mgAcetyl L-Carnitine in Klean Antioxidant against 933 products1,000 mg per serving; the middle half of products list 200 mg to 525 mg, the median 500 mg.1,000 mg

Higher than 82% of 933 products listing acetyl L-carnitine (median 500 mg).

Alpha Lipoic Acid400 mgAlpha Lipoic Acid in Klean Antioxidant against 2,407 products400 mg per serving; the middle half of products list 25 mg to 150 mg, the median 50 mg.400 mg

Higher than 93% of 2,407 products listing alpha lipoic acid (median 50 mg).

Maqui100 mgMaqui in Klean Antioxidant against 57 products100 mg per serving; the middle half of products list 62.5 mg to 1,000 mg, the median 100 mg.100 mg

47% of 57 products listing maqui give more (median 100 mg).

Astaxanthin2 mgAstaxanthin in Klean Antioxidant against 955 products2 mg per serving; the middle half of products list 0.1 mg to 4 mg, the median 1 mg.2 mg

Higher than 57% of 955 products listing astaxanthin (median 1 mg).

Source: NIH ODS Dietary Supplement Label Database, label 237072 (entered October 23, 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 400 mg of alpha lipoic acid is higher than 93% of the 2,407 alpha lipoic acid products that print an amount; 137 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
Suggested usage: As a dietary supplement, adults take 3 vegetarian capsules daily with a meal, or as directed by a trainer, coach, or health professional.
Warnings
Warning: If you are pregnant, nursing, have any health condition or taking any medication, consult your health professional before using this product.
Keep out of the reach of children.
Use only if safety seal is intact.
Allergens and what it does not contain
Gluten-free, Non-GMO
Storage
Store in a cool, dry place.

Source: label statements in DSLD label 237072.

What else is on the label?

Other ingredients: Hydroxypropyl Methylcellulose, Microcrystalline Cellulose, Calcium Carbonate, Silica, Vegetable Stearate.

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): NSF Certified Sport. Listed with: NSF certified (contents or GMP) (a seal is the label's claim; the certifier's own list confirms it).

How many labels does Klean Antioxidant have?

4 labels are on file under this name since December 21, 2012: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 237072 (current) Entered October 23, 2020 · on the market · 90 vegetarian capsules · UPC 3 10539 03842 0
  2. Label 57659 Entered March 24, 2016 · off the market September 25, 2020 · 90 vegetarian capsules · UPC 3 10539 03842 0
  3. Label 41827 Entered January 23, 2015 · off the market December 15, 2015 · 90 vegetarian capsules · UPC 3 10539 03842 0
  4. Label 14357 Entered December 21, 2012 · off the market January 15, 2015 · 90 vegetarian capsules · UPC 3 10539 03842 0

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

Who makes it?

The label names Klean Athlete (distributor), Pittsburgh, PA. All Klean Athlete products.

Where next?