L-Arginine
by Pure Encapsulations · capsule · 180 capsules
- On the market (NIH)
- UPC 7 66298 00561 4
- DSLD label 295518
- Serving 2 capsules
- 45 servings
L-Arginine by Pure Encapsulations lists one ingredient: 1,400 mg of L-arginine hydrochloride per serving of 2 capsules. Its current label entered the NIH Dietary Supplement Label Database on August 23, 2023.
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).
| Ingredient | Amount | % DV | Among products listing it |
|---|---|---|---|
| Calories | 5 Calories | ||
| L-Arginine Hydrochloride | 1,400 mg | Higher than 80% of 1,455 products listing arginine (median 500 mg). Per day at the most servings: 4,200 mg. |
Source: NIH ODS Dietary Supplement Label Database, label 295518 (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?
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 1 to 3 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.
- L-Arginine 1,350 mgCarlson same ingredients
- Free Form L-Arginine 750 mgASN Advanced Sport Nutriceuticals · off the market same ingredients
- 100% Pure L-ArginineNutraBio same ingredients
- 100% Pure L-Arginine 1500 MilligramsNutraBio same ingredients
- L-Arginine HCl 1,500 mgNature's Lab same ingredients
- Arginine 750 mgVital Nutrients · off the market same ingredients
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
- Recommendations: As a dietary supplement, take 2 capsules, 1-3 times daily, between meals.
- Warnings
- Warning: If you are pregnant or lactating, have any health condition or are taking any medication, consult your health professional before use.
- Keep out of the reach of children.
- Use only if safety seal is intact.
- Allergens and what it does not contain
- Certified Gluten-Free by the Gluten-Free Certification Organization, www.gluten.org
- Gluten-free, non-GMO & hypoallergenic
- Storage
- Store in a cool, dry place.
Source: label statements in DSLD label 295518.
What else is on the label?
Other ingredients: Cellulose, Water.
Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): GFCO.org (Gluten-Free Certification Organization). Listed with: Certified gluten-free (GFCO) (a seal is the label's claim; the certifier's own list confirms it).
How many labels does L-Arginine have?
6 labels are on file under this name since January 7, 2019: other sizes, label designs and reformulations. The current one leads this page.
- Label 295518 (current) Entered August 23, 2023 · on the market · 180 capsules · UPC 7 66298 00561 4
- Label 293991 Entered June 22, 2023 · on the market · 90 capsules · UPC 7 66298 00523 2
- Label 219290 Entered May 22, 2020 · off the market October 23, 2018 · 180 capsules · UPC 7 66298 00561 4
- Label 219281 Entered May 22, 2020 · off the market October 23, 2018 · 90 capsules · UPC 7 66298 00523 2
- Label 182974 Entered January 7, 2019 · off the market July 21, 2022 · 90 capsules · UPC 7 66298 00523 2
- Label 182970 Entered January 7, 2019 · off the market July 21, 2022 · 180 capsules · UPC 7 66298 00561 4
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names Pure Encapsulations (manufacturer), Sudbury, MA. All Pure Encapsulations products.