NOW Foods L-Ornithine Powder is a pure amino acid supplement that helps clear exercise related ammonia and supports quicker muscle recovery after training.

Available Sizes & Variants:

227 grams L-Ornithine powder - easy to scoop and blend into drinks for convenient daily use.

Benefits & Features:

• May help ammonia clearance after tough workouts.
• Each serving provides a precise 5-gram dose that mixes smoothly with water or a beverage, supporting the urea cycle to help clear metabolic ammonia and assist energy recovery after training.
• Main active ingredient L-ornithine HCl helps arginine production and creatine synthesis, helping muscle energy during hard effort.
• Made in GMP facilities and vegan and gluten-free, ensuring quality and a clean label.
• Compact powder form fits easily into daily routines, and it can be combined with other staples such as collagen powder or gut health supplements.

NOW Foods has stood for purity and reliability since 1968, with GMP manufacturing and Independent Lab Verified quality. L-Ornithine supports the urea cycle, helping clear ammonia and support energy recovery after training in a clean, single-ingredient formula. In a broader wellness routine, it’s a natural fit with collagen powder and gut health supplements, and can slot into popular stacks like nugenix total t.

L-Ornithine (from 1000mg L-Ornithine Hydrochloride)

• GTIN: 733739002501
• Manufacturer: NOW Foods
• Categories: Best SellersNOW FoodsOrnithine SupplementsSports Supplements Black Friday Sale
• Best buy: 6 - 24 months+

United Kingdom Shipping:

Orders placed by 2pm (Monday to Friday) are dispatched the same day. Orders placed after 2pm will be dispatched the next working day.

Free shipping on orders over £50 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 30 days in the same original and unopened packaging. Subject to T&C's.

Take 1/2 teaspoon 1 to 2 times daily, mixed with juice or water, on an empty stomach. Store in a cool, dry, dark place after opening. For adults only. Consult a physician if pregnant/nursing, taking medication, or have a medical condition. Keep out of reach of children. Do not eat freshness packet enclosed.

Please consult the product packaging for accurate instructions on how to use the product.

*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

The Active Ingredient Is: L-Ornithine (L-Ornithine HCl)

L-Ornithine is an amino acid involved in everyday metabolic processes and is supplied here as L-Ornithine hydrochloride. This form offers the amino acid in a highly pure, single-ingredient supplement ideal for anyone looking for a clean amino acid option.

Source: a vegan, gluten-free powder meant for easy mixing with drinks, with the active component being L-Ornithine itself.

What Does L-Ornithine Do?

L-Ornithine plays a part in the urea cycle, where it helps convert toxic ammonia into urea for excretion, supporting normal metabolism. It also participates in making arginine and creatine, and can be converted into related amino acids for metabolic flexibility.

This combination supports amino acid interconversion and energy-related pathways tied to muscle recovery and metabolic health.

This product isn't meant to diagnose, treat, cure, or prevent any disease.

NOW Foods is our Welzo-staff go-to partner for L-Ornithine Powder because this brand embodies production excellence at scale. The manufacturer’s long-established heritage since 1968 and its family-run ethos underpin a consistent commitment to quality, value and reliability in the UK health market. NOW Foods is widely recognised for stringent quality checks, GMP compliance and a wide portfolio that reflects a practical, consumer-friendly approach to clean ingredients. The product itself is a single-ingredient, vegan and gluten-free formulation, with independent lab verification highlighted in its quality story, reinforcing our confidence in its purity and manufacturing rigour. This brand stands out from competitors through its clear quality culture and longstanding market standing. This mix of heritage, process discipline and transparent product integrity makes NOW Foods an ideal fit for Welzo’s standards. Our team carefully evaluated NOW Foods with input from Welzo's healthcare professionals and our quality certification process to confirm this alignment Welzo's healthcare professionals and our quality certification process.