L-Tyrosine, 500 mg, 100 comprimés - Source Naturals

Calcium, L-tyrosine, phosphate de calcium dibasique, sorbitol, acide stéarique, dioxyde de silicium colloïdal, stéarate de magnésium et gomme de cellulose modifiée.

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.

Consommez un comprimé par jour. Prenez une capsule par jour ou comme indiqué.

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

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

L-Tyrosine is an amino acid that your body uses to support the production of key neurotransmitters and thyroid hormones. This single-ingredient mix centres on this amino acid as the active component.

In this form, the ingredient acts as a direct precursor for dopamine, norepinephrine and epinephrine, which can be depleted during physical or mental stress. This mirrors evidence describing its role in supporting cognitive resilience in demanding situations.

What Does L-Tyrosine Do?

L-Tyrosine helps with the normal production of neurotransmitters involved in mood, stress response and cognitive function. It helps support mental performance and cognitive clarity when the brain faces demanding tasks or stress, as described in the accompanying research context.

The information here references the scientific understanding of this nutrient’s function and its place in normal brain chemistry. This product isn't meant to diagnose, treat, cure, or prevent any disease.

Welzo chose Source Naturals for L-Tyrosine because the brand fits with our strict partner criteria, emphasising clear ingredient presentation and alignment with our supplement sourcing philosophy. This brand’s approach to single-ingredient formulations mirrors the straightforward, transparent product design Welzo seeks when selecting suppliers for cognitive support supplements such as L-Tyrosine.

Source Naturals has a long-standing industry presence that underpins trust and reliability, and our team evaluated the brand during our standard vetting process. This included a thorough review by our expert team of doctors, nurses, and nutritionists to ensure alignment with our ingredient quality and purity standards. Our evaluation confirms that the brand meets Welzo’s safety and quality expectations, and their product is positioned to fit this single-ingredient supplement well.

When it comes to product fit, L-Tyrosine is shown as a direct precursor in a straightforward formulation, which backs our emphasis on clean, well-characterised ingredients. This focus aligns with Source Naturals’ clear product structure and our team’s assessment framework, strengthening why this brand earned Welzo endorsement for this specific supplement.