NOW Foods L-Ornithine is a daily supplement aimed at supporting healthy protein metabolism and ammonia removal, helping you bounce back quicker after training sessions and keep liver health in check.

Available Sizes & Variants:

120 vegetarian capsules – a convenient daily dose for steady support.

Benefits & Features:

• Convenient daily dose in a vegan capsule.
• Supports the body's ammonia management by providing a precise 500 mg dose of L-Ornithine per capsule, aiding recovery after strenuous exercise and helping maintain energy during workouts.
• GMP certified manufacturing ensures purity and safety across batches.
• Free from common allergens and non-GMO, with clear labelling.
• Fits well with a wellbeing routine that may include probiotics and a vitamin d supplement.

NOW Foods L-Ornithine is supplied as L-Ornithine hydrochloride in a vegan, non-GMO capsule, reflecting the brand’s transparent, allergen aware approach. Since the company began, it has built a reputation for GMP-certified manufacturing and strict batch testing, giving you confidence in every capsule. The star ingredient sits in the amino acid family, helping the body detoxify by aiding the urea cycle and supporting recovery after tough workouts. This product fits seamlessly into a wellbeing routine alongside probiotics and a vitamin d supplement.

L-Ornithine (from L-Ornithine Hydrochloride)

• GTIN: 733739001221
• 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 3 capsules daily with juice or water on an empty stomach before exercise and at bedtime. Store in a cool, dry 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.

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 Core Ingredient Is: L-Ornithine (as L-Ornithine Hydrochloride)

L-Ornithine is basically an amino acid that takes part in normal protein metabolism. This formulation brings L-Ornithine in its hydrochloride salt form, a common presentation in dietary supplements to help stability and utilisation.

This product uses L-Ornithine as the main active ingredient, with the broader product profile lining up with vegan/vegetarian friendly, non-GMO sourcing and transparent labelling of excipients.

What L-Ornithine Does?

L-Ornithine plays a part in the body’s urea cycle, helping with ammonia removal and supporting detoxification as part of normal metabolism. It may also contribute to energy-related aspects of muscle function, in line with its involvement in amino acid transformation and energy pathways.

EFSA guidance backs the understanding of nutrient function within normal physiological processes, and NHS information emphasises its role in standard metabolic activity.

*This product is not intended to diagnose, treat, cure, or prevent any disease.

NOW Foods has earned its place with a clear commitment to quality that mirrors Welzo’s standards. This brand was founded on family‑owned values and a long history of manufacturing excellence, continually pursuing purity, identity and safety in its products. NOW Foods operates in facilities that carry the GMP Quality Assured designation, a credibility marker that reassures us about thorough production controls and ongoing quality monitoring. Their transparent sourcing and vegan/vegetarian friendly formulations capture a philosophy of openness and responsible ingredient selection that resonates with our customers. For extra reassurance, their products emphasise allergen control and clean-label ingredients, confirming attention to consumer safety and trust. This is strengthened by third‑party oversight of batch purity and the brand’s commitment to non‑GMO ingredients across relevant lines, reinforcing a credibility framework we recognise in the market.

We evaluated NOW Foods for this L‑Ornithine based on our internal screening process, including our expert team of doctors, nurses, and nutritionists and our supplement quality standards our supplement quality standards. This collaboration ensures alignment with our strict criteria for safety, transparency and regulatory compliance, and supports why NOW Foods is Welzo Selected for this supplement.