Pure L-Ornithine Powder Unflavored®
Amino Acids & ProteinBrand: Doctor's Best
Functions
Net Contents
7.1 Oz(s)
Serving Size
2 Gram(s)
Servings Per Container
100
Supplement Form
Powder
Bar Code (UPC/SKU)
7 53950 00489 4
Product Version
YDRB489-1
Label Analysis
Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.
Single-ingredient formula listed in Supplement Facts.
Every active ingredient discloses a specific amount per serving.
Label states: Vegetarian, Non-GMO, 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
Free From
- 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: 2 Gram(s) · 1– per day
| Ingredient | Amount Per Serving | |
|---|---|---|
| L-Ornithine(L-Ornithine Hydrochloride) | 2 Gram(s) | — |
Not Present
Other Ingredients
Target Groups
Label Claims
Directions & Suggested Use
Suggested/Recommended/Usage/Directions
Suggested Adult Use: Dissolve 1 scoop in 8 ounces of juice, favorite beverage or protein drink, preferably taken on an empty stomach. For best results, drink 1 hour before exercise. Repeat after exercise or before bedtime, or as recommended by a nutritionally-informed physician. Do not take more than 10 g per day.
Warnings & Precautions
Precautions re: All Other
Do not take more than 10 g per day.
Precautions re: Pregnant or Nursing or Prescription Medications
Warning: Do not take L-Ornithine if pregnant or nursing. Consult your physician if taking MAOIs and other medications for possible interactions while taking concomitant with L-Ornithine.
Storage
Storage
Store in a cool dry place.
Formulation
Formula re: Contains
Doctor’s Best Pure L-Ornithine is an amino acid that helps in the formation of citrulline, proline, and glutamic acid, three amino acids that help supply energy to every cell in the body. L-Ornithine helps support athletic performance and helps lower exercise-induced fatigue, especially when combined with other amino acids. Doctor’s Best L-Ornithine powder is unflavored and can be combined with water, protein-shakes, or your favorite sports performance drink.
Formulation re: Does NOT Contain
Non-GMO Gluten free Soy free
Formulation re: Vegetarian/Vegan
Vegetarian
FDA Statements
FDA Disclaimer Statement
These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
FDA Statement of Identity
Dietary Supplement
Other Label Statements
General Statements: All Other Content
Helps support athletic performance Helps lower exercise-induced fatigue
General: Product/Version Code
YDRB489-1
Brand IP Statement(s) re: (c), (TM), (SM)
Science-Based Nutrition
Seals/Symbols
Vegetarian
General Statements: All Other Content
Note: Settling of contents may occur, which may cause slight variations in the number of servings.
Manufacturer & Distributor
Distributor
Doctor's Best, Inc.
(800) 777-2474
Market Reference
Prescribed For Life Ornithine L-Ornithine Amino Acid Powder
Prescribed For Life$158.99Nusci 100% Pure L-ornithine Powder 100g (3.52 Oz) Lean Muscle Mass
eBay - nutrients_scientific$13.95LowestNusci Pure L-ornithine Powder 1kg (2.2lb) Lean Muscle Mass
eBay - nutrients_scientific$71.95Nusci L-ornithine Pure Powder 250g (8.8oz) Lean Muscle Mass
eBay - nutrients_scientific$27.95
Where to Buy Locally
Enter your city or ZIP code to find supplement & health stores in your area that may carry this product.
Showing representative supplement & health retailers — search above for stores in your area.
CVS
4.1 (32)Vitamin & supplements store
137 McMahan Blvd, Marion, OH 43302
Liv It Up Nutrition
5.0 (8)Health food store
1290 Delaware Ave, Marion, OH 43302
Walgreens
3.7 (50)Vitamin & supplements store
1321 Delaware Ave, Marion, OH 43302
Walmart Supercenter
3.7 (4238)Department store
1546 Marion-Mt Gilead Rd, Marion, OH 43302
S&S Nutrition
5.0 (25)Fast food restaurant
613 E Center St Ste B, Marion, OH 43302
Nutrify Supplements llc
5.0 (22)Vitamin & supplements store
7780 Corporate Blvd STE#2308, Plain City, OH 43064
Tractor Supply Co.
4.3 (361)Animal feed store
1488 Marion-Waldo Rd, Marion, OH 43302
The Vitamin Shoppe
4.3 (110)Vitamin & supplements store
771 N Lexington-Springmill Rd, Ontario, OH 44906
Research & Studies
Effects of Oral Ingestion of L-Ornithine on Mental Stress and Fatigue Based on the Trier Social Stress Test in Healthy Humans: A Randomized, Double-Blind …
K Moriyasu, A Nakajima, M Morita - Journal of Clinical Medicine, 2024 - mdpi.com
… tests, urinalysis, and doctor interviews to confirm the health status. … Considering the time it took for the supplements to … The consumption of medicines, supplements, and health foods …
20242 citationsPhenylketonuria and Maternal Phenylketonuria
M Hunt, S Berry, H Berry, N Leslie - Pediatric Nutrition in Chronic …, 2005 - books.google.com
… of PKU and requires a complex medical regimen in addition to a … Only pure sugar and pure fat contain no phenylalanine. … VIL supplementation that was not sustained off the supplement. …
2005Beetroot Juice Supplementation as a Healthy Aging Strategy Through Improving Physical Performance and Cognitive Functions: A Systematic Review
A Nowak, A Szymańska, M Kwaśniewska, E Kochan… - Nutrients, 2025 - mdpi.com
… Results: Overall, beetroot supplementation … juice supplementation as a supportive element of exercise capacity and cognitive abilities contributing to maintaining health and thus healthy …
20255 citationsDetermination of relationship between dolutegravir and trace amine profile, using advanced liquid chromatography tandem mass spectrometry analysis of …
N Henning - 2023 - scholar.sun.ac.za
… In mammalian cells the precursor amino acid for putrescine (PUT) is L-ornithine. PUT is mainly synthesized by decarboxylation of ornithine by ornithine decarboxylase (Pegg, 2006). …
20231 citationsCharacterisation of microencapsulation process in Saccharomyces cerevisiae
F Ciamponi - 2011 - search.proquest.com
Since the 1970's there has been industrial interest in using microorganisms as microcapsules. The encapsulation of actives (eg flavours, drugs, perfumes) is a necessary process for …
20114 citationsImpact of Creatine Supplementation on Vascular Endothelial Function, Blood Flow and Functional Capacity in Older Adults
HE Clarke - 2021 - search.proquest.com
… I would like to start by thanking my advisor Dr. Robert Hickner for his … stating that results were purely in response to increased … 6) Only healthy male and female older adults (50-64 years) …
20211 citations
Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2019-06-24. DSLD Label ID: 203401. 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.
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