L-Citrulline
by NutraKey · capsule · 90 capsules
- On the market (NIH)
- UPC 4 56352 93274 0
- DSLD label 287394
- Serving 2 to 4 capsules; amounts per 2 capsules
- 45 servings
L-Citrulline by NutraKey lists one ingredient: 1,500 mg of L-citrulline malate per serving of 2 capsules. Its current label entered the NIH Dietary Supplement Label Database on June 22, 2023.
What is in L-Citrulline?
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 |
|---|---|---|---|
| L-Citrulline Malate | 1,500 mg | 68% of 1,209 products listing citrulline give more (median 3 g). Per day at the most servings: 3 g. |
Source: NIH ODS Dietary Supplement Label Database, label 287394 (entered June 22, 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 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.
- L-CitrullineNOW same ingredients
- Sustained Release L-Citrulline 750 mgNOW Sports same ingredients
- L-Citrulline 1,500 mgNutricost same ingredients
- L-Citrulline Pure PowderBest Naturals same ingredients
- L-Citrulline 1500 mgBest Naturals same ingredients
- High Strength L-Citrulline 1800 mgZazzee Sports 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
- For best results: Combine with Nutrakey's L-Arginine to further support nitric oxide production.
- Recommended use: Take 1 serving (2 capsules) with water or your favorite beverage 1-2 times daily or as directed by your physician. For maximum benefit, take 2-4 capsules 30 minutes before workout and 2-4 capsules after workout.
- Warnings
- Warning: Pregnant or lactating women, diabetics, hypoglycemics, are people with known medical conditions and/or taking drugs should consult with a licensed physician and/or pharmacist prior to taking dietary supplements.
- Do not use if seal is broken. Do not use if packaging has been tampered with.
- Allergens and what it does not contain
- Non GMO Gluten free Dye free BPA free Parabens free
- Storage
- Store in a cool, dry place.
Source: label statements in DSLD label 287394.
What else is on the label?
Other ingredients: Gelatin, Silicon Dioxide.
How many labels does L-Citrulline have?
One label is on file, entered on June 22, 2023.
- Label 287394 (current) Entered June 22, 2023 · on the market · 90 capsules · UPC 4 56352 93274 0
Source: DSLD label entry and market events, version 9.4.0 (labels entered through September 25, 2025).
Who makes it?
The label names Nutrakey (manufacturer), Longwood, FL. All NutraKey products.