PlainVitamins

L-Arginine Extra Strength 2662 mg

by Built By Nature · capsule · 60 capsules

  • On the market (NIH)
  • UPC X002L20OAR
  • DSLD label 328627
  • Serving 4 capsules
  • 15 servings

L-Arginine Extra Strength 2662 mg by Built By Nature lists 7 ingredients, 7 with an amount per serving of 4 capsules, such as 72 mg of calcium, 30 mg NE of niacin, 800 mg of L-arginine and 800 mg of L-arginine AKG extract. Its current label entered the NIH Dietary Supplement Label Database on June 25, 2025.

What is in L-Arginine Extra Strength 2662 mg?

Each row as the label prints it, per serving of 4 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 Extra Strength 2662 mg: Supplement Facts rows against the market (DSLD label 328627, January 2026 release)
IngredientAmount% DVAmong products listing it
Calciumas Calcium Carbonate72 mg6%Calcium in L-Arginine Extra Strength 2662 mg against 17,831 products72 mg per serving; the middle half of products list 50 mg to 252 mg, the median 115 mg.DV 1,300 mgUL 2,500 mg72 mg

65% of 17,831 products listing calcium give more (median 115 mg).

Niacin30 mg NE188%Niacin in L-Arginine Extra Strength 2662 mg against 12,413 products30 mg per serving; the middle half of products list 13.2 mg to 48 mg, the median 20 mg.DV 16 mgUL 35 mg30 mg

Higher than 63% of 12,413 products listing niacin (median 20 mg).

L-Argininebase800 mgArginine in L-Arginine Extra Strength 2662 mg against 1,455 products1,600 mg per serving; the middle half of products list 167 mg to 1,000 mg, the median 500 mg.1,600 mg

Higher than 85% of 1,455 products listing arginine (median 500 mg).

L-Arginine AKG Extractas Alpha-Ketoglutarate2:1 extract800 mg
L-Citrulline Hydrochloride400 mgCitrulline in L-Arginine Extra Strength 2662 mg against 1,209 products0.4 g per serving; the middle half of products list 1 g to 5 g, the median 3 g.0.4 g

89% of 1,209 products listing citrulline give more (median 3 g).

L-Citrulline Malate Extract400 mgCitrulline malate in L-Arginine Extra Strength 2662 mg 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).

Beta-Alanine160 mgBeta-Alanine in L-Arginine Extra Strength 2662 mg against 1,778 products0.16 g per serving; the middle half of products list 1.6 g to 3.2 g, the median 2 g.0.16 g

98% of 1,778 products listing beta-alanine give more (median 2 g).

Source: NIH ODS Dietary Supplement Label Database, label 328627 (entered June 25, 2025), 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?

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:

  • 95% of the 655 products that print an amount of citrulline malate list more than its 0.4 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 0.16 g of beta-alanine (median 2 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?

2 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 four (4) capsules once a day. For best results take 20-30 min before activity with an 8oz. 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.
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 328627.

What else is on the label?

Other ingredients: Cellulose, Stearate, Silicon Dioxide.

How many labels does L-Arginine Extra Strength 2662 mg have?

One label is on file, entered on June 25, 2025.

  1. Label 328627 (current) Entered June 25, 2025 · on the market · 60 capsules · UPC X002L20OAR

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

Who makes it?

The label names Built By Nature (distributor), Bluffdale, UT. All Built By Nature products.

Where next?