L-Arginine 3,000 mg
by SuperiorLabs · capsule · 150 vegetable capsules
- Off the market since June 2025 (NIH)
- UPC 8 50569 00649 0
- DSLD label 227846
- Serving 5 vegetarian capsules
- 30 servings
L-Arginine 3,000 mg by SuperiorLabs lists 2 ingredients, 2 with an amount per serving of 5 vegetarian capsules, such as 3,000 mg of L-arginine, powder and 50 mg of L-leucine, powder. Its current label entered the NIH Dietary Supplement Label Database on June 24, 2020.
What is in L-Arginine 3,000 mg?
Each row as the label prints it, per serving of 5 vegetarian 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 |
|---|---|---|---|
| L-Arginine, Powder | 3,000 mg | Higher than 91% of 1,455 products listing arginine (median 500 mg). | |
| L-Leucine, Powder | 50 mg | 95% of 2,056 products listing leucine give more (median 2.5 g). |
Source: NIH ODS Dietary Supplement Label Database, label 227846 (entered June 24, 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?
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, powder (filed by NIH under arginine) is higher than 91% of the 1,455 arginine products that print an amount; 71 list more.
- 95% of the 2,056 products that print an amount of leucine list more than its 0.05 g of L-leucine, powder (filed by NIH under leucine) (median 2.5 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?
The products whose ingredient lists overlap most with L-Arginine 3,000 mg's, rare ingredients counting for more.
- L-Arginine 500GNC · off the market 1 shared, 52% alike
- L-Arginine 1000GNC · off the market 1 shared, 52% alike
- Arginine Ethyl EsterSNI Elite Series · off the market 1 shared, 52% alike
- RapidDrive Arginine 5000 UnflavoredGNC Pro Performance 1 shared, 52% alike
- L-Arginine ProCoDeCo Nutrilife · off the market 1 shared, 52% alike
- ArginineVital Nutrients · off the market 1 shared, 52% alike
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, adults take 5 capsules per day or as directed by your healthcare professional.
- Warnings
- Caution: Do not exceed recommended dosage.
- Please consult a physician before consuming this product if you are pregnant or nursing, taking medication or have a medical condition.
- Not intended for use by individuals under the age of 18.
- Do not use if safety seal is damaged or missing.
- Keep out of reach of children.
- Allergens and what it does not contain
- L-Arginine capsules manufactured for Superior Labs contain 3,000mg pure L-Arginine with no magnesium stearate, dioxides, preservatives, or other potentially harmful artificial ingredients of any kind.
- Does not contain: Magnesium stearate, dioxides, preservatives, or artificial ingredients of any kind.
- Storage
- Store in a cool, dry place.
Source: label statements in DSLD label 227846.
What else is on the label?
Other ingredients: Plant Cellulose, organic Rice extract.
Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Metal Safe Heavy Metal Tested Certified GMP Facility Made in USA.
How many labels does L-Arginine 3,000 mg have?
One label is on file, entered on June 24, 2020.
- Label 227846 (current) Entered June 24, 2020 · off the market June 17, 2025 · 150 vegetable capsules · UPC 8 50569 00649 0
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names Superior Labs, LLC. (distributor), Park City, UT. All SuperiorLabs products.