L-Arginine
by Huntington Labs · capsule · 60 capsules
- Off the market since October 2023 (NIH)
- UPC X001EG0ILL
- DSLD label 205648
- Serving 2 capsules
- 30 servings
L-Arginine by Huntington Labs lists 7 ingredients, 7 with an amount per serving of 2 capsules, such as 30 mg of niacin, 30 mg of calcium, 400 mg of L-arginine and 400 mg of L-arginine AKG 2:1 extract. Its current label entered the NIH Dietary Supplement Label Database on August 23, 2019.
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 |
|---|---|---|---|
| Niacin | 30 mg | 150% | Higher than 63% of 12,413 products listing niacin (median 20 mg). Per day at the most servings: 60 mg. 1.7 times the adult UL a day. |
| Calciumas Calcium CarbonateCalcium (Form: as Calcium Carbonate) | 30 mg | 3% | 84% of 17,831 products listing calcium give more (median 115 mg). Per day at the most servings: 60 mg. |
| L-Arginine | 400 mg | 60% of 1,455 products listing arginine give more (median 500 mg). Per day at the most servings: 800 mg. | |
| L-Arginine AKG 2:1 extract | 400 mg | 85% of 322 products listing arginine alpha ketoglutarate give more (median 1 g). Per day at the most servings: 0.8 g. | |
| L-Citrulline | 200 mg | 93% of 1,209 products listing citrulline give more (median 3 g). Per day at the most servings: 0.4 g. | |
| L-Citrulline Malate Extract | 200 mg | 97% of 655 products listing citrulline malate give more (median 3 g). Per day at the most servings: 0.4 g. | |
| Beta-Alanine | 80 mg | 98% of 1,778 products listing beta-alanine give more (median 2 g). Per day at the most servings: 0.16 g. |
Source: NIH ODS Dietary Supplement Label Database, label 205648 (entered August 23, 2019), 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:
- At 2 servings a day, the most its directions give, the label lists 60 mg of niacin, 1.7 times the adult Tolerable Upper Intake Level.
- 85% of the 322 products that print an amount of arginine alpha ketoglutarate list more than its 0.4 g of L-arginine AKG 2:1 extract (filed by NIH under arginine alpha ketoglutarate) (median 1 g).
- 93% of the 1,209 products that print an amount of citrulline list more than its 0.2 g of L-citrulline (filed by NIH under citrulline) (median 3 g).
- 97% of the 655 products that print an amount of citrulline malate list more than its 0.2 g of L-citrulline malate extract (filed by NIH under citrulline malate) (median 3 g).
- 98% of the 1,778 products that print an amount of beta-alanine list more than its 0.08 g of beta-alanine (median 2 g).
The NIH database records 1 to 2 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.
- Extreme NO2Max Drive Nutrition same ingredients
- Pump MatrixLiquid Labs · off the market same ingredients
- L-Arginine+Natures Craft · off the market same ingredients
- N.o.Natures Craft same ingredients
- L-Arginine CapsulesNew Age same ingredients
- N.O BlastNutriSuppz 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 Use: Take one capsule, one to two times daily with at least 8 oz. of water 30-45 minutes before a meal.
- Warnings
- Caution: For adults only. Take this product as recommended. Without drinking enough liquid the product may swell in the throat causing blockage or choking. Avoid use if you ever had esophageal narrowing or swallowing difficulties.
- Consult physician if pregnant/nursing, taking medication, or have a medical condition.
- Keep out the reach of children.
- Warning: Keep out of reach of children.
- Do not use if safety seal is damaged or missing.
- Storage
- Store in a cool, dry place.
Source: label statements in DSLD label 205648.
What else is on the label?
Other ingredients: Cellulose, Magnesium Stearate, Silicon Dioxide.
Seals and symbols as the label prints them (the maker's; a certifier's own list confirms a seal): Made in the United States of America USA GMP Good Manufacturing Practice.
How many labels does L-Arginine have?
One label is on file, entered on August 23, 2019.
- Label 205648 (current) Entered August 23, 2019 · off the market October 17, 2023 · 60 capsules · UPC X001EG0ILL
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names Huntington Labs (distributor), Wilmington, DE. All Huntington Labs products.