L-Tyrosine 500 mg, 100 capsules - Klaire Labs (SFI Health)

(Autre) capsule végétarienne (hydroxypropyl méthylcellulose, eau), L-leucine, cellulose microcristalline et dioxyde de silicium.

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.

Le supplément peut être pris comme 1 capsule, 1 à 4 fois par jour, ou comme indiqué par un professionnel de la santé. Prenez 1 capsule \, 1 à 6 fois par jour avec des repas ou comme indiqué par un professionnel de la santé.

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

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

L-Tyrosine is an amino acid that the body uses to make certain neurotransmitters and thyroid hormones, helping support normal brain and metabolic function.

This professional-grade supplement uses USP-grade L-tyrosine in a hypoallergenic vegetarian capsule and comes with a clean label, free from common allergens and artificial additives.

What Does L-Tyrosine Do?

L-Tyrosine is involved in the synthesis of dopamine, norepinephrine and epinephrine, and supports the production of thyroid hormones which help regulate energy and metabolism.

This follows EFSA-style wording for nutrient function and is backed by research on cognitive performance under stress.

Dr. Deijen from the University of Groningen found that tyrosine may help maintain cognitive performance in demanding situations, reflecting its role in brain chemistry and stress response.

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

Why Klaire Labs L-Tyrosine is Welzo Selected

Welzo’s partnership criteria focus on strong brand credibility, manufacturing excellence and transparent quality, and Klaire Labs clearly matches this standard. When comparing brands, Klaire Labs stands out for its professional-grade approach to hypoallergenic supplementation and pharmaceutical-style quality control, supported by third-party quality certifications and GMP-compliant processes. The brand’s reputation for strict ingredient verification and transparent labelling reinforces our confidence in its reliability for this specific supplement.

In terms of brand-specific quality, Klaire Labs employs premium USP-grade L-Tyrosine in a hypoallergenic, clean-label formulation, with clear attention to safety and potency. This aligns with our commitment to rigorous testing and certifications, which you can learn more about through our rigorous testing protocols and by exploring the work of our expert team of doctors, nurses, and nutritionists.

The product fit is particularly strong for L-Tyrosine, a direct precursor to neurotransmitters and thyroid hormones, and Klaire Labs’ professional-grade, transparent approach makes it a natural choice for Welzo. This brand’s established manufacturing standards and commitment to purity distinguish it from competitors, and our expert team evaluated Klaire Labs against our strict brand criteria to confirm its suitability for this supplement.