PlainVitamins

Arginine Ornithine Powder

by Life Extension · powder · 150 grams

  • On the market (NIH)
  • UPC 7 37870 03815 3
  • DSLD label 328281
  • Serving 3.1 g (1 level teaspoon)
  • 48 servings

Arginine Ornithine Powder by Life Extension lists 2 ingredients, 2 with an amount per serving of 3.1 g, such as 2.25 g of L-arginine hydrochloride and 750 mg of L-ornithine hydrochloride. Its current label entered the NIH Dietary Supplement Label Database on May 21, 2025.

What is in Arginine Ornithine Powder?

Each row as the label prints it, per serving of 3.1 g. 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).

Arginine Ornithine Powder: Supplement Facts rows against the market (DSLD label 328281, January 2026 release)
IngredientAmount% DVAmong products listing it
L-Arginine Hydrochloride2.25 gArginine in Arginine Ornithine Powder against 1,455 products2,250 mg per serving; the middle half of products list 167 mg to 1,000 mg, the median 500 mg.2,250 mg

Higher than 89% of 1,455 products listing arginine (median 500 mg).

L-Ornithine Hydrochloride750 mgOrnithine in Arginine Ornithine Powder against 258 products750 mg per serving; the middle half of products list 100 mg to 900 mg, the median 400 mg.750 mg

Higher than 68% of 258 products listing ornithine (median 400 mg).

Source: NIH ODS Dietary Supplement Label Database, label 328281 (entered May 21, 2025), version 9.4.0. See the label on DSLD or its label image (PDF). Amounts are what the maker printed; DSLD does not test products. Daily Values: the FDA's Daily Value page.

Is that a lot?

Every amount on this label with a position sits within the middle 80% of the products that list the same ingredient.

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
Directions: Take one (1) level teaspoon on an empty stomach, or as recommended by a healthcare practitioner.
Warnings
Read the entire label and follow the directions carefully prior to use.
Warnings: Keep out of reach of children.
Do not exceed recommended dose. Do not purchase if outer seal is broken or damaged.
When using nutritional supplements, please consult with your physician if you are undergoing treatment for a medical condition or if you are pregnant or lactating.
To report a serious adverse event or obtain product information, contact 1-866-280-2852.
Allergens and what it does not contain
Gluten free Non GMO LE Certified
Storage
Store tightly closed in a cool, dry place.

Source: label statements in DSLD label 328281.

What else is on the label?

Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Non GMO LE Certified.

How many labels does Arginine Ornithine Powder have?

4 labels are on file under this name since April 22, 2016: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 328281 (current) Entered May 21, 2025 · on the market · 150 grams · UPC 7 37870 03815 3
  2. Label 231613 Entered August 23, 2020 · off the market August 9, 2023 · 150 grams · UPC 7 37870 03815 3
  3. Label 58571 Entered April 22, 2016 · off the market July 14, 2020 · 150 grams · UPC 7 37870 03815 3
  4. Label 58570 Entered April 22, 2016 · off the market March 12, 2016 · 150 grams · UPC 7 37870 03815 3

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

Who makes it?

The label names Quality Supplements and Vitamins, Inc. (distributor), Ft. Lauderdale, FL. All Life Extension products.

Where next?