L-Ornithine 500 mg®

Amino Acids & Protein

Brand: NOW

CapsuleAmino acid/ProteinOff Market
Click to view full label

Net Contents

120 Capsule(s)

Serving Size

3 Capsule(s)

Servings Per Container

40

Supplement Form

Capsule

Bar Code (UPC/SKU)

7 33739 00122 1

Product Version

CODE 0122 V2

Label Analysis

Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.

1Active Ingredients

Single-ingredient formula listed in Supplement Facts.

100%Amount Transparency

Every active ingredient discloses a specific amount per serving.

1Dietary Attributes

Label states: Gluten-Free.

This analysis is generated algorithmically from label data for educational reference only. It is not a product endorsement, ranking, or medical advice.

Allergen Guide

Contains

  • Milk
  • Egg
  • Shellfish
  • Wheat
  • Soy
  • Gluten

Allergen flags are parsed automatically from the official label's claims and statements. Always verify against the physical product label before use, especially if you have a severe allergy.

Supplement Facts

Serving Size: 3 Capsule(s) · 1–2 per day

IngredientAmount Per Serving
L-Ornithine(L-Ornithine Hydrochloride)1.5 g

Not Present

Other Ingredients

GelatinRice FlourMagnesium Stearate

Target Groups

Adult (18 - 50 Years)Gluten FreeDairy FreeSugar Free

Label Claims

Structure/Function

Directions & Suggested Use

Suggested/Recommended/Usage/Directions

SUGGESTED USAGE: As a dietary supplement, take 3 capsules with juice or water on an empty stomach before exercise and at bedtime. Consider taking this product in combination with NOW(R) L-Arginine, L-Citrulline and B-6.

Warnings & Precautions

Precautions re: All Other

Do Not Eat Freshness Packet. Keep in Bottle.

Storage

Storage

Store in a cool, dry place.

Formulation

Formulation re: Does NOT Contain

Contains no sugar, salt, yeast, wheat, gluten, corn, soy, milk, egg, shellfish or preservatives.

FDA Statements

FDA Disclaimer Statement

*These statements have not been evaluated by the FDA. This product is not intended to diagnose, treat, cure or prevent any disease.

FDA Statement of Identity

A Dietary Supplement

Other Label Statements

General Statements: All Other Content

Ornithine is a non-essential amino acid that plays a central role in the urea cycle, functioning along with Arginine and Citrulline to rid the body of ammonia, a byproduct of protein metabolism. Because Ornithine is converted into Arginine, it can help to maintain healthy Arginine levels in the body. Ornithine can also be converted into other amino acids, such as citrulline, proline, and glutamate, as well as creatine, an important muscular energy source.*

General Statements: All Other Content

ACTUAL SIZE

General Statements: All Other Content

FITNESS AMINO ACID

General Statements: All Other Content

• Healthy Protein Metabolism*

Seals/Symbols

GMP QUALITY ASSURED

General Statements: All Other Content

Made in the U.S.A.

General Statements: All Other Content

Please Recycle.

General: Product/Version Code

CODE 0122 V2

Manufacturer & Distributor

Manufacturer

NOW FOODS

395 S. Glen Ellyn Rd., Bloomingdale, IL, 60108

Market Reference

$5.24 – $67570.00· 40 listings
  • Now L-Ornithine 500 mg

    Vitacost.com4.8(1800)
    $15.91
  • (2 pack) NOW Supplements, L-Ornithine (L-Ornithine Hydrochloride) 500 mg, Amino Acid, 120 Veg Capsules, White

    Walmart - Fruitful Yield4.8(1800)
    $33.18
  • NOW ARGININE ORNITHINE

    Natures Food Markets4.7(817)
    $14.99
  • Now Foods L Ornithine Powder

    Target4.8(393)
    $31.99
  • Now L Carnitine

    NOW4.7(3400)
    $65.99
  • Now L-Arginine

    Vitacost.com4.8(7600)
    $7.95
  • NOW L-Arginine & L-Ornithine 100 Capsules

    Healthy Planet4.7(7)
    $21.15
  • Now Sports Arginine & Ornithine 500 mg / 250 mg

    Bulk Apothecary4.8(22)
    $31.77

Where to Buy Locally

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Research & Studies

  • Randomised controlled trial of the effects of L-ornithine on stress markers and sleep quality in healthy workers

    M Miyake, T Kirisako, T Kokubo, Y Miura, K Morishita… - Nutrition journal, 2014 - Springer

    … 500 mg of L-ornithine monohydrochloride (400 mg … Our results showed that L-ornithine supplementation had a … most important social problems for workers today. This study has …

    2014138 citations
  • A randomized, double-blind and placebo-controlled crossover trial on the effect of l-ornithine ingestion on the human circadian clock

    T Fukuda, A Haraguchi, M Takahashi… - Chronobiology …, 2018 - Taylor & Francis

    … However, this can be difficult to achieve in today’s society, … , trials in healthy humans have revealed that L-ornithine intake … This study has demonstrated that L-ornithine supplementation …

    201819 citations
  • Utilization of 7-chloro-4-nitrobenzo-2-oxa-1,3-diazole (NBD-Cl) for spectrochemical determination of l-ornithine: a multivariate optimization-assisted approach

    H Aly, AS El-Shafie, M El-Azazy - RSC advances, 2019 - pubs.rsc.org

    … Dietary supplements are a broad term that includes a wide range of products that are … ), due to their health impacts. Worldwide sales of dietary supplements are going through a hasty …

    201922 citations
  • l-Ornithine-l-Aspartate (LOLA) Normalizes Metabolic Parameters in Models of Steatosis, Insulin Resistance and Metabolic Syndrome

    A Canbay, O Götze, O Kucukoglu, S Weinert… - Pharmaceutics, 2024 - mdpi.com

    … In health, l-ornithine and l-aspartate are synthesized de novo … The stable salt of l-ornithine and l-aspartic acid—l-ornithine-l-… Our in vitro results now suggest that LOLA may reconstitute …

    202414 citations
  • Impact of cationic amino acid transporter 1 on blood-retinal barrier transport of L-ornithine

    Y Kubo, A Obata, S Akanuma… - … Ophthalmology & Visual …, 2015 - iovs.arvojournals.org

    … These pieces of evidence indicate the relevance of L-ornithine to health maintenance … L-ornithine as a dietary supplement because a study in humans has revealed that the L-ornithine …

    201521 citations
  • The effect of L-ornithine hydrochloride ingestion on human growth hormone secretion after strength training

    S Demura, S YAMAJI, M KOMATSU… - … in Bioscience and …, 2010 - u-fukui.repo.nii.ac.jp

    … This study aimed to examine the effect of L-ornithine … Ten healthy young males without workout habits (age: 22.2 +/… Until now, it was reported that special amino acids such as …

    201034 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2012-10-01. DSLD Label ID: 13477. This information is provided for educational reference only and is not medical advice. Always follow the product label and consult a doctor or pharmacist before use.