L-Tyrosine 500mg, 100 capsules - Jarrow Formulas

(other) Cellulose, magnesium stearate (vegetable source), and silicon dioxide. Capsule consists of bovine gelatin.

United Kingdom & Rest of the World Shipping Details:
Same day dispatch for orders placed by 2pm (Orders after 2pm dispatched 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 14 days in the same original and unopened packaging. Subject to T&C's.

Welzo is a UK-based health platform. Orders ship from the UK.

Take one capsule once or twice daily on an empty stomach, right after waking up in the morning. It is best to take it with juice as a carbohydrate source, unless otherwise directed by your healthcare professional.

If taking the supplement for children between the ages of 4 and 6, it is recommended to consume 2 capsules daily. For children aged 6 to 12, 2 capsules should be taken twice daily. For individuals over the age of 12, it is advised to take 2 capsules 3 to 4 times daily.

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

The Active Ingredient Is: L-Tyrosine (Pure crystalline)

L-Tyrosine is an essential amino acid the body uses to synthesise key brain chemicals. This product contains crystalline pure L-Tyrosine, designed for quality and allergen safety. The capsule uses bovine gelatin and common inactive ingredients to keep capsule integrity.

This form is described as crystalline pure L-Tyrosine and is represented as the primary active nutrient in this product.

What Does L-Tyrosine Do?

L-Tyrosine provides raw material for the production of catecholamine neurotransmitters, which are involved in brain signalling and mental function. It supports its role in normal neurotransmitter production and brain health processes.

This mechanism aligns with its described use as a precursor supplier to dopamine and related compounds, contributing to daily mental performance and resilience during stressful times.

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

Jarrow Formulas is Welzo picked for L-Tyrosine because our medical team spotted a science-led brand with a solid track record of quality and safety in its formulations. The brand is recognised for its careful, evidence-based approach to supplement design and its strong market presence, earning positive consumer trust across the sector. This credibility is reinforced by their commitment to making non-GMO, allergen-conscious products, which aligns with Welzo’s emphasis on transparency and safety.

Brand-specific quality is a core strength of Jarrow Formulas. The manufacturer is known for thorough formulation standards and a philosophy of thoughtful crafting to preserve potency and purity. Our evaluation also highlights their emphasis on transparent ingredient sourcing and science-driven formulations, which supports consistent product quality and reliability. You can discover more about how we assess our suppliers via our medical team and how we uphold our standards at our ingredient quality and purity standards.

This brand stands out in our selection for L-Tyrosine due to its tested, transparent approach to producing a reliable, well-supported supplement. Welzo’s vetting framework blends expert review and ongoing quality checks to ensure Jarrow Formulas stays a trusted partner for this category.