PlainVitamins

L-Arginine

by Envy Nutrition · capsule · 60 capsules

  • On the market (NIH)
  • UPC X002AUUYYB
  • DSLD label 241849
  • Serving 2 capsules
  • 30 servings

L-Arginine by Envy Nutrition lists 4 ingredients, 4 with an amount per serving of 2 capsules, such as 400 mg of L-arginine hydrochloride, 400 mg of L-arginine alpha-ketoglutarate, 400 mg of L-citrulline malate and 100 mg of beet root powder. Its current label entered the NIH Dietary Supplement Label Database on January 22, 2021.

What is in L-Arginine?

Each row as the label prints it, per serving of 2 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).

L-Arginine: Supplement Facts rows against the market (DSLD label 241849, January 2026 release)
IngredientAmount% DVAmong products listing it
L-Arginine Hydrochloride400 mgArginine in L-Arginine against 1,455 products400 mg per serving; the middle half of products list 167 mg to 1,000 mg, the median 500 mg.400 mg

60% of 1,455 products listing arginine give more (median 500 mg).

L-Arginine Alpha-Ketoglutarate400 mgArginine Alpha Ketoglutarate in L-Arginine against 322 products0.4 g per serving; the middle half of products list 0.75 g to 1.99 g, the median 1 g.0.4 g

85% of 322 products listing arginine alpha ketoglutarate give more (median 1 g).

L-Citrulline Malate400 mgCitrulline malate in L-Arginine against 655 products0.4 g per serving; the middle half of products list 1 g to 6 g, the median 3 g.0.4 g

95% of 655 products listing citrulline malate give more (median 3 g).

Beet root powder100 mgBeet in L-Arginine against 850 products100 mg per serving; the middle half of products list 10.63 mg to 500 mg, the median 100 mg.100 mg

48% of 850 products listing beet give more (median 100 mg).

Source: NIH ODS Dietary Supplement Label Database, label 241849 (entered January 22, 2021), 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:

  • 85% of the 322 products that print an amount of arginine alpha ketoglutarate list more than its 0.4 g of L-arginine alpha-ketoglutarate (filed by NIH under arginine alpha ketoglutarate) (median 1 g).
  • 95% of the 655 products that print an amount of citrulline malate list more than its 0.4 g of L-citrulline malate (filed by NIH under citrulline malate) (median 3 g).

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?

4 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: As a dietary supplement take two (2) capsules once a day. For best results take 20-30 min before a meal with an 8 oz. glass of water or as directed by your healthcare professional.
Warnings
Caution: Do not exceed recommended dose.
Pregnant or nursing mothers, children under the age of 18, and individuals with a known medical condition should consult a physician before using this or any dietary supplement.
Pregnant or nursing mothers, children under the age of 18, and individuals with a known medical condition should consult a physician before using this or any dietary supplement. Keep out of reach of children.
Do not use if safety seal is damaged or missing.
Allergens and what it does not contain
Sugar free Gluten free ingredients Dairy free
Storage
Store in a cool, dry place.

Source: label statements in DSLD label 241849.

What else is on the label?

Other ingredients: Gelatin, Magnesium Stearate, Silicon Dioxide.

How many labels does L-Arginine have?

One label is on file, entered on January 22, 2021.

  1. Label 241849 (current) Entered January 22, 2021 · on the market · 60 capsules · UPC X002AUUYYB

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

Who makes it?

The label names Envy Nutrition (distributor), Phoenix, AZ. All Envy Nutrition products.

Where next?