BioTechUSA L-Tyrosine capsules boost cognitive focus and support thyroid function by delivering the key amino acid that fuels neurotransmitter production in daily life. Iodine supports normal thyroid hormone synthesis, while BioTechUSA emphasises safe, carefully selected ingredients and controlled manufacturing. This blend reflects the brand's commitment to quality and practical support for everyday mental clarity.

Available Sizes & Variants:

100 capsules BioTechUSA L-Tyrosine - convenient daily dose.

Benefits & Features:

• Supports focused thinking and sustained attention during challenging tasks, helping you stay sharp.
• L-Tyrosine and iodine work together to support thyroid hormone synthesis and energy metabolism.
• Two capsules daily keep dosing simple.
• Formulated for daily use alongside essentials like a vitamin d supplement and n acetylcysteine.
• Regular use may support stress related cognitive performance and mood, and many customers pair it with protein powder for muscle gain as part of a balanced routine.

Two capsules provide 1000 mg L-Tyrosine and 100 mcg iodine, reflecting BioTechUSA's commitment to safe, carefully selected ingredients and controlled manufacturing. L-Tyrosine is a precursor to dopamine and adrenaline, supporting cognitive function under stress, while iodine helps normal thyroid hormone production. In wellness routines you might also see a vitamin d supplement or protein powder for muscle gain, with n acetylcysteine in other BioTechUSA products.

L-Tyrosine, Iodine, L-Tyrosine, Iodine

• GTIN: 5999076234332
• Manufacturer: BioTechUSA
• Categories: BioTechUSA SupplementsL-TyrosineSports Supplements
• 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 two capsules daily before a meal or before a workout. Store the product tightly closed in a cool, dry place. Keep out of reach of small children. Dietary supplements do not replace a varied and balanced diet and healthy lifestyle. Not recommended for pregnant and nursing women. Not recommended for people with medical conditions and/or taking medications.

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 Active Ingredient Is: L-Tyrosine

L-Tyrosine is an amino acid that functions as a precursor to neurotransmitters such as dopamine and adrenaline, supporting normal brain function and mental performance. This formulation includes iodine as well, which supports normal thyroid hormone production and metabolism.

This nutrient is presented as an individual amino acid within the capsule-based product, with the iodine supplement co-present to support thyroid health as part of overall metabolism.

What Does L-Tyrosine Do?

L-Tyrosine participates in neurotransmitter synthesis, a normal part of nervous system function during daily activity and periods of stress. It contributes to memory, attention, and focus through its role in neurotransmitter production, while iodine supports thyroid hormone synthesis and energy regulation.

The combination of these ingredients helps integrate nervous system function with metabolic processes to support daily wellness.

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

BioTechUSA is our chosen partner for L-Tyrosine because this brand is recognised for safe and carefully selected ingredients, underpinning a reliable starting point for cognitive support formulations. The commitment to ingredient safety and thoughtful formulation sits at the heart of BioTechUSA’s approach, aligning with our emphasis on purity and responsible sourcing. This brand has built a reputation for controlled production practices, which fits neatly with our requirement for consistency and quality across batches. Our medical team our medical team evaluated BioTechUSA against the standards we expect and confirmed alignment with the quality framework we require, including a strong focus on product integrity. The certifications we require the certifications we require guide our partnership decisions and reinforce BioTechUSA as a credible supplier.

This collaboration is specifically well suited for L-Tyrosine, where reliable sourcing, transparent formulation practices, and a provenance-aware approach support consistent product performance. Our vetting criteria — credibility, safety, and manufacturing discipline — were met decisively, which justified choosing BioTechUSA as our partner for this supplement.