PlainVitamins

L-Arginine L-Citrulline Complex 1,000 mg

by Source Naturals · tablet or pill · 60 tablets

  • On the market (NIH)
  • UPC 0 21078 02042 4
  • DSLD label 295935
  • Serving 1 tablet
  • 60 servings

L-Arginine L-Citrulline Complex 1,000 mg by Source Naturals lists 2 ingredients, 2 with an amount per serving of 1 tablet, such as 750 mg of L-arginine and 250 mg of L-citrulline. Its current label entered the NIH Dietary Supplement Label Database on August 23, 2023.

What is in L-Arginine L-Citrulline Complex 1,000 mg?

Each row as the label prints it, per serving of 1 tablet. 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 L-Citrulline Complex 1,000 mg: Supplement Facts rows against the market (DSLD label 295935, January 2026 release)
IngredientAmount% DVAmong products listing it
Calories5 Calories
L-Arginineas L-Arginine Hydrochloride750 mgArginine in L-Arginine L-Citrulline Complex 1,000 mg against 1,455 products750 mg per serving; the middle half of products list 167 mg to 1,000 mg, the median 500 mg.750 mg

Higher than 59% of 1,455 products listing arginine (median 500 mg). Per day at the most servings: 3,000 mg.

L-Citrulline250 mgCitrulline in L-Arginine L-Citrulline Complex 1,000 mg against 1,209 products0.25 g per serving; the middle half of products list 1 g to 5 g, the median 3 g.0.25 g

91% of 1,209 products listing citrulline give more (median 3 g). Per day at the most servings: 1 g.

Source: NIH ODS Dietary Supplement Label Database, label 295935 (entered August 23, 2023), 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:

  • 91% of the 1,209 products that print an amount of citrulline list more than its 0.25 g of L-citrulline (filed by NIH under citrulline) (median 3 g).

The NIH database records 4 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?

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
Suggested Use: 1 tablet four times daily.
Warnings
Warning: If you are pregnant, may become pregnant, breastfeeding, have a history of heart disease, hypotension, renal or hepatic failure, or are taking any prescription medication such as nitroglycerin or any drug for erectile dysfunction, consult your physician before using this product.
Not recommended following acute myocardial infarction.
Do not use if either tamper-evident seal is broken or missing.
Keep out of the reach of children.
Allergens and what it does not contain
Contains no yeast, dairy, egg, gluten, soy or wheat. Contains no sugar, starch, salt, preservatives, or artificial color, flavor or fragrance.
Storage
Store in a cool, dry place.

Source: label statements in DSLD label 295935.

What else is on the label?

Other ingredients: Stearic Acid, Maltodextrin, silicified Microcrystalline Cellulose, modified Cellulose Gum, Silicon Dioxide, Colloidal.

How many labels does L-Arginine L-Citrulline Complex 1,000 mg have?

4 labels are on file under this name since April 25, 2017: other sizes, label designs and reformulations. The current one leads this page.

  1. Label 295935 (current) Entered August 23, 2023 · on the market · 60 tablets · UPC 0 21078 02042 4
  2. Label 295934 Entered August 23, 2023 · off the market July 6, 2022 · 240 tablets · UPC 0 21078 02050 9
  3. Label 72853 Entered April 25, 2017 · off the market July 6, 2022 · 60 tablets · UPC 0 21078 02042 4
  4. Label 72420 Entered April 25, 2017 · off the market December 22, 2021 · 120 tablets · UPC 0 21078 02043 1

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

Who makes it?

The label names Source Naturals, Inc. (distributor), Santa Cruz, CA. All Source Naturals products.

Where next?