L-Tyrosine supports cognitive performance during stressful conditions, enabling sharper focus and quicker mental recovery for demanding workdays, helping you stay present and productive without excess caffeine. This pure amino acid acts as a precursor to dopamine and norepinephrine, supporting mood and stress response. This commitment to quality means Jarrow Formulas products are produced to Good Manufacturing Practice standards and undergo third party testing.

Available Sizes & Variants:

100 capsules – convenient daily supply for cognitive support.

Benefits & Features:

• Sharper focus during demanding tasks helps you stay on track.
• Supports mood and motivation by providing a steady supply of neurotransmitter precursors.
• Ideal for daily use to maintain focus under stress.
• L-Tyrosine serves as the star ingredient, helping replenish catecholamines to support focus.
• L-Tyrosine helps maintain working memory and reaction speed during challenging multitasking situations, keeping you alert when fatigue threatens performance, without the need for extra caffeine or stimulants.

Jarrow Formulas stands out for its research driven, quality first approach. The brand follows strict Good Manufacturing Practice standards and publishes certificates of analysis for transparency. Independent testing supports potency and purity, with label accuracy near 98.7 percent. L-Tyrosine is the star ingredient, a natural precursor to dopamine and related neurotransmitters that aid focus under pressure.

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

• GTIN: 790011150015
• Manufacturer: Jarrow Formulas
• Categories: Jarrow FormulasL-TyrosineNew Arrivals
• 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 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’s trusted partner for L-Tyrosine because this brand consistently demonstrates industry-leading commitment to honesty, quality and transparency. The manufacturer’s rigorous adherence to GMP and its voluntary involvement in third‑party potency and purity testing, with clear CoA disclosures, sets a solid quality baseline that many peers aim to meet. This reputation is felt in broad recognition from integrative health practitioners and everyday users, backed by high consumer satisfaction benchmarks and a longstanding international presence. Our team checks brands like Jarrow Formulas through a rigorous lens, incorporating our team of medical experts and our focus on evidence-based sourcing to keep reliability and safety. We also line up with our quality certification process to confirm testing standards and certifications.

This product’s requirements—a reliable L‑tyrosine source with proven stability and purity—match Jarrow Formulas’ proven manufacturing philosophy and quality controls.