L-Tyrosine Swanson - 100 caps

Regular price
14,90 €
Regular price
Sale price
14,90 €
  • 100 caps of 500mg,
  • Precursor of catecholamines
  • Precursor of thyroid hormones
  • Natural and non-addictive supplementation (unlike anxiolytics)
Non-essential amino acid, precursor of many vital hormones. Voir plus
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L-Tyrosine Swanson - 100 caps

14,90 €

L-Tyrosine Swanson - 100 caps

14,90 €
Product Description

What is it?

Tyrosine is a non-essential amino acid, i.e. that our body is able to synthesize it. It is also found in food: meat, eggs, fish, dairy products, certain fruits and vegetables and in legumes

This amino acid is necessary for the synthesis of catecholamines, namely adrenaline, noradrenaline and L-DOPA (dopamine precursor) (see reference 1). It is also a strictly essential element for the synthesis of thyroid hormones. Tyrosine is also a precursor to melanin (reference 2)

L-tyrosine is the natural form of tyrosine.

What science says about tyrosine:

➪ Tyrosine and stress: Reference 3 - Reference 4 - Reference 5

Current European regulations prevent us from communicating more about the benefits of tyrosine. We invite you to consult the scientific data by accessing the reliable Pubmed database.

Nutritional Information

Dosage: Take one capsule daily with a glass of water.

Tyrosine supplements should be taken away from a high protein meal and ideally at least 30 minutes before breakfast.


➪ Not recommended for pregnant or breastfeeding women.

➪ Not recommended for people being treated for melanoma, mania or schizophrenia or in the case of certain genetic diseases such as tyrosinemia type 1 and 2 and alkaptonuria.

➪ In case of hyperthyroidism or Graves' disease, tyrosine supplementation can aggravate the symptoms of these diseases and alter the effects of thyroid treatments.

➪ Avoid taking tyrosine at the same time as L-dopa (treatment for Parkinson's) and deprenyl, monoamine inhibitor antidepressants oxidase (risk of hypertension).

The opinion of our professionals

Advice of the nutrition expert


Currently and for a long time, the first prescription given during stress or anxiety was benzodiazepines, an anxiolytic. However, anxiolytics are only "masks" which erase the symptoms of anxiety but do not intervene in any way on the nervous system. In addition, their effect is always temporary and their regular intake can lead to dependence and the appearance of unpleasant symptoms when stopping their intake (anxiety, insomnia, fatigue, tremors. ) Today, nutrition is finally recognized as a form of medication. Taking L-tyrosine during times of stress helps maintain levels of norepinephrine and dopamine, which usually drop during stress and cause fatigue. This type of "medication" is natural, healthy and does not cause addiction unlike anxiolytics. Plus, L-tyrosine doesn't just cure "the symptoms," it helps prevent fatigue and lessens the effects of stress over the long term.

Opinion from sports coaches


Tyrosine is a food supplement that is interesting to use for people who are stressed, tired and have a "negative" environment. It can also be used to support thyroid function


www. steph ramos. en

L-tyrosine precursor of dopamine and noradrenaline, improves motivation, concentration, memory, joy of living.
The morning boost!


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