- *MSRP:
$47.99- Our Price:
- $28.80
- Buy: at $28.80
- UPC: 733739002501
- # N0250
Product Overview & Quick Specs
Think of your liver like an internal municipal recycling plant that cleans out engine soot. Strenuous exercise generates heavy nitrogen waste (ammonia) that clogs your cellular machinery. NOW Foods L-Ornithine Powder provides pure free-form L-ornithine (chemical formula: C5H12N2O2) to help power your liver's waste-disposal network (the urea cycle) and promote sustained stamina [1, 4].
Quick Specs Snapshot
- ✓ Active Form & Potency: 780 mg of pure L-Ornithine (derived from 1,000 mg L-Ornithine Hydrochloride) per 1/2 teaspoon serving.
- ✓ Primary Target: Hepatic urea cycle activation, metabolic ammonia clearance, and athletic recovery support [1, 3, 4].
- ✓ Supply & Value: Approximately 227 servings per container, offering adjustable dosing and outstanding cost efficiency.
- ✓ Purity & Dietary Status: 100% pure powder with zero excipients, vegan/vegetarian, non-GMO, and free of 9 common allergens.
Buyer's Guide & Form Comparison
Why the Stabilized Pure Powder Form Matters
Standard unbonded amino acid powders absorb ambient moisture rapidly, turning sticky and degrading on the shelf. NOW solves this by utilizing pharmaceutical-grade L-Ornithine Hydrochloride. The hydrochloride bond mirrors the natural acid found in human gastric juice, stabilizing the delicate amino acid crystal and allowing instant dissolution in water.
Discount big-box store formulas frequently cut corners with cheap synthetic processing, unlisted anti-caking agents, and heavy metal impurities. NOW Foods supplies 100% pure active material without flow agents, delivering rapid intestinal absorption without digestive delay.
Is This Formula Right for You?
Best Choice For:
- ✓ Athletes and strength trainers seeking targeted cellular support for post-workout fatigue and muscle recovery [1, 3].
- ✓ High-protein eaters wanting to assist healthy liver nitrogen processing and normal urea synthesis [4].
- ✓ Shoppers who prefer custom scoop dosing and want zero capsules, flow agents, or chemical excipients.
Consider Another Option If:
- ✗ You need pre-measured convenience for travel and prefer swallowing vegetarian capsules over measuring loose powder.
- ✗ You prefer pre-flavored or sweetened drink mixes rather than an unflavored, naturally crisp pure powder.
- ✗ You are pregnant or nursing without explicit medical clearance from your healthcare professional.
How It Works in the Body
To understand how L-Ornithine supports stamina and vitality, look at two essential cellular pathways.
1. The Cellular Exhaust Scrubber (The Urea Cycle)
Think of heavy training like a high-performance engine burning fuel and generating exhaust smoke. Intense muscular effort and protein metabolism create a natural byproduct known as ammonia [1]. Ammonia builds up in the bloodstream and working muscles, contributing to acute fatigue and central exhaustion.
L-Ornithine acts like an industrial exhaust scrubber inside the liver's filtration circuit (the urea cycle) [4]. Inside the cell powerhouses (mitochondria), L-ornithine combines with carbamoyl phosphate to form citrulline. This biological cascade converts toxic ammonia into neutral urea, which the kidneys safely filter into urine [1, 4]. Clearing ammonia preserves cellular energy generators (adenosine triphosphate, or ATP) so muscles sustain steady output [1, 3].
2. The Stress and Sleep Circuit (HPA Axis Modulation)
Think of persistent physical and mental stress like an emergency siren that refuses to turn off. Ongoing tension overactivates your adrenal control center (the hypothalamic-pituitary-adrenal axis) [2]. Clinical trials show that oral L-ornithine crosses the blood-brain barrier to help modulate cortisol production, supporting nighttime relaxation, restorative sleep quality, and next-morning vigor [2].
Daily Timing, Synergy & Realistic Timelines
Best Time to Take & Meal Pairing
Mix 1/2 level teaspoon into 8 ounces of pure water (chemical formula: H2O) or juice. Consume on an empty stomach, either 30 minutes before meals or 2 hours afterward. Free-form amino acids utilize specialized intestinal transport gates (cationic amino acid transporters). Taking this powder away from dietary protein prevents competing amino acids from clogging absorption pathways [4].
Daily Schedule: Training vs. Sleep Protocols
For exercise stamina and waste removal, take your serving 30 to 45 minutes prior to training [1, 3]. For evening recovery and stress balance, drink your serving 30 to 60 minutes before bedtime on an empty stomach [2].
Smart Pairings & Spacing Rules
- ✓ Nutrient Partners: Stacks synergistically with L-Arginine or L-Citrulline to enhance muscular blood flow and support nitric oxide production alongside ammonia clearance [3, 4].
- ✓ Juice Carbohydrate Boost: Stirring into a few ounces of tart cherry or citrus juice provides light natural carbohydrates that stimulate gentle nutrient uptake.
- ✗ Temperature Spacing: Never mix into boiling water or scalding tea, which can destabilize free-form amino acid bonds. Maintain a 2-hour window away from prescription medications.
What to Expect Over Time
Days 1–7: Rapid gastrointestinal dissolution and steady cellular uptake, promoting cleaner exercise recovery and initial metabolic adaptation [1].
Weeks 3–4: Consistent baseline support for physical resilience, less perceived morning grogginess, and improved sleep satisfaction [1, 2].
Months 2–3+: Cumulative optimization of liver nitrogen handling, sustained athletic stamina, and robust daily stress adaptation [1, 2, 3].
Physical Feel, Sensory Traits & Clean Ingredients
Format & Ease of Mixing
This formula is a 100% pure crystalline powder, completely freeing you from swallowing handfuls of large capsules. Simply measure 1/2 level teaspoon (approx. 1 gram) and stir into 8 ounces of cold water or juice. The crystals dissolve quickly and cleanly with a simple spoon.
Natural Aroma, Taste & Color
The powder has a pure white to off-white appearance with a clean, neutral aroma. Because L-ornithine is stabilized with hydrochloride, it possesses a mild, clean tartness with a faintly salty finish in plain water. It blends effortlessly into lemon water, tart cherry juice, or pre-workout fruit smoothies. Natural color variations may occur between harvest lots.
Other Ingredients Demystified
Other Ingredients: None. This jar contains zero chemical flow agents, zero silicon dioxide, zero magnesium stearate, and zero artificial sweeteners or preservatives. Because no anti-caking agents are used, natural clumping may occur; this is completely normal and does not alter nutrient potency.
Proper Jar Storage
Keep the lid tightly fastened immediately after each use. Store in a cool, dry, dark pantry after opening. Do not remove or eat the enclosed non-toxic food-grade freshness packet, which safeguards the pure powder from ambient air humidity.
Manufacturer Quality & Lab Testing Standards
The online supplement marketplace is flooded with white-labeled discount brands that skip analytical verification. NOW Foods safeguards your wellness through comprehensive in-house testing in private analytical laboratories accredited to strict ISO/IEC 17025 standards.
- ✓ Over 31,000 Monthly Assays: More than 150 full-time scientists, chemists, and toxicologists examine incoming raw materials and finished products to confirm label accuracy.
- ✓ ICP-MS Heavy Metal Testing: Inductively Coupled Plasma Mass Spectrometry detects elemental contaminants (lead, arsenic, cadmium, mercury) down to parts-per-billion (ppb) thresholds, surpassing USP and California Proposition 65 limits.
- ✓ Chiral HPLC Purity Analysis: High-Performance Liquid Chromatography confirms 100% active L-enantiomer stereochemistry, ensuring zero toxic synthetic D-isomers or adulterants.
- ✓ Microbiological Screening: Rigorous microbial assays verify total absence of Salmonella, E. coli, yeast, and molds under Current Good Manufacturing Practice (cGMP) regulations.
Complete Supplement Facts Panel
Supplement Facts
Serving Size: 1/2 Teaspoon (approx. 1 g)
Servings Per Container: about 227
| Description | Amount per Serving | % Daily Value |
|---|---|---|
|
L-Ornithine (from 1,000 mg L-Ornithine Hydrochloride) |
780 mg | ** |
** Daily Value not established.
Other Ingredients: None.
Allergen Declaration: Not manufactured with yeast, wheat, gluten, soy, milk, egg, fish, shellfish, tree nut or sesame ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.
Caution: For adults only. Consult physician if pregnant/nursing, taking medication, or have a medical condition. Keep out of reach of children.
Do not eat freshness packet enclosed. This product is pure, and because no anti-caking agents are used, lumping may occur. This product contains hydrochloride, the acid normally present in the stomach, which acts to stabilize the L-ornithine. Natural color variation may occur in this product. This product is sold by weight not volume. Packaged and quality tested in the USA. Store in a cool, dry, dark place after opening.