L-Arginine
by Douglas Laboratories · capsule · 100 capsules
- On the market (NIH)
- UPC 7 45287 06020 9
- DSLD label 237159
- Serving 1 capsule
- 100 servings
L-Arginine by Douglas Laboratories lists one ingredient: 700 mg of L-arginine per serving of 1 capsule. Its current label entered the NIH Dietary Supplement Label Database on October 23, 2020.
What is in L-Arginine?
Each row as the label prints it, per serving of 1 capsule. 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 |
|---|---|---|---|
| L-Arginine | 700 mg | Higher than 58% 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 237159 (entered October 23, 2020), 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?
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 6 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-ArginineBiotics Research Corporation same ingredients
- Arginine - 700 CapsulesMBi Nutraceuticals same ingredients
- L-Arginine 700 mgNOW same ingredients
- L-Arginine HCL 700 mgKlaire Labs · off the market same ingredients
- L-Arginine 675 mgCarlson · off the market same ingredients
- ArginineVital 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
- Suggested Usage: As a dietary supplement, adults take 1 capsule, 1-6 times daily or as directed by your health professional.
- Warnings
- Warning: If you are pregnant, nursing, have any health condition or taking any medication, consult your health professional before using this product.
- Keep out of the reach of children.
- Use only if safety seal is intact.
- Allergens and what it does not contain
- Gluten-free, Non-GMO
- Storage
- Store in a cool, dry place.
Source: label statements in DSLD label 237159.
What else is on the label?
Other ingredients: Gelatin, Microcrystalline Cellulose, Vegetable Stearate, Silica, Stearic Acid.
How many labels does L-Arginine have?
4 labels are on file under this name since February 23, 2012: other sizes, label designs and reformulations. The current one leads this page.
- Label 237159 (current) Entered October 23, 2020 · on the market · 100 capsules · UPC 7 45287 06020 9
- Label 57283 Entered March 24, 2016 · off the market July 31, 2020 · 100 capsules · UPC 7 45287 06020 9
- Label 10765 Entered July 25, 2012 · off the market December 15, 2015 · 100 capsules · UPC 7 45287 06020 9
- Label 5364 Entered February 23, 2012 · off the market January 20, 2012 · 100 capsules · UPC 7 45287 06020 9
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names Douglas Laboratories (manufacturer), Pittsburgh, PA. All Douglas Laboratories products.