100/100

This product looks safe

No ingredients exceed tolerable upper intake levels
Limited research evidence available for ingredients

B Label Compliance Grade

Label

Product Label

Open Full PDF View on NIH DSLD →

Details

Label Data

4 V-Cap(s)

Serving Size

125

Servings

Amino acid/Protein

Product Type

Evidence Coverage

Ingredients

Supplement Facts — Evidence Check

L-Citrulline

2000 mg

Market median: 2000.0mg (275 products)

Other Ingredients

Vegetable Capsule

Claims

Label Claims — Verification

Unverified All Other

Unverified Structure/Function

Info

Product Information

Directions for Use

4 capsules 1-2x daily Suggested Use: As a dietary supplement, take 4 capsules (2000 mg) 1 to 2 times daily or as directed by your physician.

Warnings & Precautions

Warning: NOT INTENDED FOR USE BY PERSONS UNDER THE AGE OF 18. KEEP OUT OF THE REACH OF CHILDREN.

If you are pregnant, breast feeding, have known medical conditions (including kidney or liver disease) or are taking prescription or OTC medication(s) consult with your health care practitioner before using this product.

Formulation Notes

VEGETARIAN

ALLERGEN FREE

~ NON-GMO GLUTEN FREE ~ BSE/TSE FREE

This product is Kosher, Vegetarian, Hypoallergenic, Non-GMO, Gluten Free, & BSE/TSE Free.

This product is Kosher, Vegetarian, Hypoallergenic, Non-GMO, Gluten Free, & BSE/TSE Free. No added sugars, salt, preservatives, salicylates, or artificial color, flavor or fragrance. ZERO Fillers or Excipients Inferior ingredients Banned substances Added sugars Proprietary Blends Hidden ingredients

No Fillers No Excipients No Additives

Free of harmful impurities

Additional Information

NUTRABIO Since 1996

Manufactured in a GMP & FDA inspected facility FDA Registration: 16906175560

Made in a GMP & FDA inspected facility

Free Form Amino Acid

Pharmaceutical Grade HPLC Lab Tested for Potency

125 servings

500 milligrams

True Label Full label disclosure

Vegetable Capsule

KQ Kyowa Quality

STORE IN A COOL DRY PLACE.

Quality and purity since 1996. NutraBio manufactures in our own FDA registered & inspected GMP facility complying with FDA 21 CFR Part 111 regulations.

23607-007 B20078-002

Made in USA

Metadata

Product Details

UPC / SKU6 49908 23607 6

DSLD Entry Date2015-09-25

Product TypeAmino acid/Protein

FormCapsule

BrandNutraBio

DSLD ID50979

Data Updated2026-04-11

Research

Research Evidence

Research Sources

Avg Quality

Rct

Clinical Trial

Meta Analysis

C Effect of food sources of nitrate, polyphenols, L-arginine and L-citrulline on endurance exercise performance: a systematic review and meta-analysis of randomised controlled trials

Meta Analysis Journal of the International Society of Sports Nutrition 2021 PubMed DOI

C Effects of L-Citrulline Supplementation on Endothelial Function and Blood Pressure in Hypertensive Postmenopausal Women.

Rct Nutrients PubMed DOI

C Effects of Acute Citrulline Malate Supplementation on CrossFit® Exercise Performance: A Randomized, Double-Blind, Placebo-Controlled, Cross-Over Study.

Rct Nutrients PubMed DOI

C Impact of L-Citrulline Supplementation and HIIT on Lipid Profile, Arterial Stiffness, and Fat Mass in Obese Adolescents with Metabolic-Dysfunction-Associated Fatty Liver Disease: A Randomized Clinical Trial.

Rct Nutrients PubMed DOI

C Effect of L-Citrulline Supplementation on NAFLD in Adolescents With Obesity

Clinical Trial ClinicalTrials.gov 2021

C Effects of L-Citrulline or Citrulline-malate on Neuromuscular Performance in Resistance-trained Adults

Clinical Trial ClinicalTrials.gov 2022

C Acute effects of Nitrosigine® and citrulline malate on vasodilation in young adults.

Rct Journal of the International Society of Sports Nutrition PubMed DOI

C Effects of Combined Versus Single Supplementation of Creatine, Beta-Alanine, and L-Citrulline During Short Sprint Interval Training on Basketball Players' Performance: A Double-Blind Randomized Placebo-Controlled Trial.

Rct International journal of sports physiology and performance PubMed DOI

C Acute effects of combined supplementation of L-arginine and citrulline malate on aerobic, anaerobic, and CrossFit exercise performance.

Rct Scientific reports PubMed DOI

C L-Citrulline in Peripheral Artery Disease

Clinical Trial ClinicalTrials.gov 2016

View all evidence for Citrulline →

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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.