PlainVitamins

L-Arginine Powder

by Carlson · powder · 35 ounces

  • On the market (NIH)
  • UPC 0 88395 06736 5
  • DSLD label 309268
  • Serving 3 g (1 Teaspoon (enclosed 1 level scoop))
  • 333 servings

L-Arginine Powder by Carlson lists one ingredient: 3 g of L-arginine per serving of 3 g. Its current label entered the NIH Dietary Supplement Label Database on March 22, 2024.

What is in L-Arginine Powder?

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

L-Arginine Powder: Supplement Facts rows against the market (DSLD label 309268, January 2026 release)
IngredientAmount% DVAmong products listing it
L-Arginine3,000 mg3 gArginine in L-Arginine Powder against 1,455 products3,000 mg per serving; the middle half of products list 167 mg to 1,000 mg, the median 500 mg.3,000 mg

Higher than 91% of 1,455 products listing arginine (median 500 mg).

Source: NIH ODS Dietary Supplement Label Database, label 309268 (entered March 22, 2024), 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?

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 3,000 mg of L-arginine (filed by NIH under arginine) is higher than 91% of the 1,455 arginine products that print an amount; 71 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?

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: Adults: Take one teaspoonful (one level scoopful) daily mixed into food or liquid.
Warnings
Warning: Do not take if you are pregnant or lactating or are sensitive to arginine.
Allergens and what it does not contain
Gluten-free No artificial preservatives
Storage
Keep bottle tightly closed. Store away from heat and moisture.

Source: label statements in DSLD label 309268.

How many labels does L-Arginine Powder have?

4 labels are on file under this name since January 22, 2021: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 309268 (current) Entered March 22, 2024 · on the market · 35 ounces · UPC 0 88395 06736 5
  2. Label 304804 Entered January 24, 2024 · on the market · 3.53 ounces · UPC 0 88395 06735 8
  3. Label 241820 Entered January 22, 2021 · off the market October 14, 2022 · 3.53 ounces · UPC 0 88395 06735 8
  4. Label 241819 Entered January 22, 2021 · off the market February 16, 2024 · 35 ounces · UPC 0 88395 06736 5

DSLD also links this label to: L-Arginine Amino Acid Powder (image difference, same product), L-Arginine Amino Acid Powder (package size difference, same product), L-Arginine Amino Acid Powder (package size difference, same product), L-Arginine Amino Acid Powder (image difference, same product), L-Arginine Amino Acid Powder (package size difference, same product), L-Arginine Amino Acid Powder (package size difference, same product), L-Arginine Amino Acid Powder (image difference, same product), L-Arginine Amino Acid Powder (package size 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 Carlson Division of J.R. Carlson Laboratories, Inc. (distributor), Arlington Heights, IL. All Carlson products.

Where next?