L-Tyrosine
Acide aminé précurseur des hormones thyroïdiennes
The thyroid gland is a small endocrine gland located at the base of the neck. Among other things, it synthesizes thyroid hormones that control our body's basal metabolism. It therefore plays a role in maintaining body weight, regulating body temperature, and ensuring proper reflexes, muscle strength, growth, and other functions.
The functioning of the thyroid and the synthesis of thyroid hormones is crucial for the optimal functioning of the body.
Thyro is specifically designed for people who consume little or no iodized salt and seafood, and whose iodine intake is therefore insufficient. This insufficient iodine intake leads to a lack of thyroid hormone production, a condition known as hypothyroidism (there are other causes of hypothyroidism). Thyro provides the essential nutrients necessary for the synthesis of thyroid hormones. This intake can indeed be deficient in cases of subclinical hypothyroidism.
Thyro was designed to provide all the elements necessary for the synthesis of thyroid hormones (Tyrosine, Iodine, Selenium, ...). The iodine provided by Thyro is of plant origin, it comes from the seaweed " laminaria digitata ", a variety of Kelp renowned for its natural supply of iodine in the form of potassium iodide .
Iodine is essential for the synthesis of thyroid hormones and its absence has multiple repercussions on the functioning of the thyroid and metabolism in general (goiter, hypothyroidism, weight gain, altered intestinal transit, lack of “energy”, feeling cold, etc.).
Thyro provides the nutrients necessary for proper thyroid function. It also contains Guggul ( Commiphora wightii ). Guggul, long used in Ayurvedic medicine (in Europe, the health claims for Guggul are currently under review by the EFSA), is rich in guggulsterones. These components are known for relieving rheumatic pain and normalizing blood lipids.
Guggul also has properties that allow for the maintenance of thyroid function (see the claims section).

L-Tyrosine , one of the building blocks used in the production of thyroid hormones, is a precursor of catecholamines and thyroid hormones.

Oats , Guggul , Eleutherococcus , and Kelp . Kelp, in particular, provides a natural source of iodine, optimal for the synthesis of thyroid hormones. Iodine deficiencies exist in France. The INCA 2 study showed that 43% of women of childbearing age are deficient in iodine, which is essential for thyroid function. Iodine deficiencies lead to a decrease in the synthesis of thyroid hormones and therefore to hypothyroidism.

Selenium, zinc, beta-carotene, iron, vitamin E, vitamin B1, vitamin B2, vitamin B6. These different nutrients were chosen for their interaction with the thyroid:
Selenium, with its antioxidant properties, is necessary for the functioning of thyroid thyroid peroxidase, which allows the use of iodine.
Zinc is an essential cofactor for the synthesis of thyroid hormones.
Iron is also involved in the functioning of tyroperoxidase.
The various vitamins selected also participate in the synthesis of thyroid hormones.
The initial formula of Thyro was conceived more than 10 years ago in collaboration with Professor Patrick Fénichel, a pioneering endocrinologist in environmental medicine and the impact of our environment on our health, and founder of the AMEA association for the prevention of damage related to pollutants and endocrine disruptors.
The initial formula has evolved as new scientific studies on the effectiveness of certain natural ingredients have been published.
Thyro has been specifically formulated to allow an optimal supply of tyrosine and iodine in order to avoid certain cases of hypothyroidism.
Our quality commitments regarding the Thyro:
Quality is a driving force behind innovation at Phytocea. We want to offer the best to our customers while remaining within affordable price ranges. This quality is reflected in several aspects:
👉🏻 Locally produced and controlled, with certified ingredients
👉🏻 Total transparency about the origin of our ingredients
👉🏻 A formulation approach validated by an independent Scientific Council
👉🏻 Using the most concentrated and effective forms of our active ingredients
L-Tyrosine, oat extract* ( Avena sativa ), guggul extract* ( Commiphora wightii ), eleutherococcus extract* ( Eleutherococcus ), kelp extract* ( Laminaria digitata ), lamin Se (selenium), organic beta-carotene (20%), zinc pidolate, iron gluconate, vitamin E, vitamin B1, vitamin B2, vitamin B6, anti-caking agent: rice powder, vegetable capsules (hydroxypropylmethylcellulose). *Ingredients from organic farming
| Ingredients | Per 2 capsules | % of AR* |
| L-Tyrosine | 250 mg | - |
| Oats | 100 mg | - |
| Guggul | 100 mg | - |
| Eleutherococcus | 50 mg | - |
| Kelp | 50 mg | - |
| - including iodine | 150 µg | 100% |
| Selenium | 56 µg |
102% |
| Beta-carotene | 0.8 mg |
- |
| Zinc | 7.6 mg | 101% |
| Iron | 7.5 mg | 68% |
| Vitamin E | 15 mg | 150% |
| Thiamine (Vitamin B1) | 1.52 mg | 136% |
| Riboflavin (Vitamin B2) | 1.4 mg | 88% |
| Pyridoxine (Vitamin B6) | 1.7 mg | 114% |
*Recommended intake
We recommend taking 2 Thyro capsules in the morning on an empty stomach with a large glass of water.
At Phytocea, we have chosen transparency and information. The Guggul present in Thyro does not yet have any health claims formally validated by the EFSA. In accordance with European regulations, these pending claims may be used subject to conditions and at the manufacturer's discretion. For your information, the claims relating to cardiovascular health, maintaining normal serum lipid levels, maintaining mental and nervous system comfort, and maintaining proper thyroid hormone balance are pending validation by the EFSA under numbers 4017, 4256, 4019, 4025, and 1925.
Do not use if you have a known intolerance to any of the components.
Do not exceed the recommended daily dose.
Dietary supplements should be used as part of a healthy lifestyle and a varied and balanced diet.
Prolonged use is not recommended without medical advice.
Pregnant women should seek medical advice before using Thyro.
Do not consume while breastfeeding.
Keep out of reach of children.
Do not use on children.
According to the rules established by the European health authorities (EFSA, European Food Safety Authority and the European Commission), Thyro meets several conditions allowing it to claim health claims.
normal energy metabolism
to the normal functioning of the heart
to the normal functioning of the nervous system and normal intellectual capacities
normal energy metabolism
to the normal functioning of the nervous system
to maintain normal skin and mucous membranes
to normal vision
to maintain normal red blood cells
to normal iron metabolism
to the reduction of fatigue
to the protection of cells against free radicals
normal energy metabolism
to the normal functioning of the nervous system
to normal cysteine synthesis and normal homocysteine metabolism
to the reduction of fatigue
to the normal metabolism of glycogen and proteins
to normal mental functions
to the formation of red blood cells
to the normal functioning of the immune system
to the regulation of hormonal activity
to the protection of cells against free radicals
normal energy metabolism
to normal intellectual functions
to the normal functioning of the nervous system
to normal skin health
to the normal production of thyroid hormones and the normal functioning of the thyroid
to normal sperm production,
to maintain normal hair and nails,
to the normal functioning of the immune system,
to the protection of cells against free radicals
to the normal functioning of the thyroid
to normal DNA synthesis
with normal acid-base metabolism
to the normal metabolism of food, carbohydrates, fatty acids, vitamin A
to normal intellectual functions
to normal fertility and reproduction
to protein synthesis
to the maintenance of bones
to the maintenance of hair, nails and skin
to maintain normal blood testosterone levels
to normal vision
to the normal functioning of the immune system
to cell division
to the protection of cells against free radicals
normal energy metabolism
to normal intellectual functions
to the synthesis of hemoglobin and red blood cells
to the transport of oxygen in the body
to the normal functioning of the immune system
to reduce fatigue
to cell division
Other resources
(19) Health claims pending validation by EFSA
(20) European Register of Claims
The information in this sheet takes into account the framework of health claims authorized in accordance with European legislation on food supplements (EC No. 1924/2006).
The thyroid gland is a small endocrine gland located at the base of the neck. Among other things, it synthesizes thyroid hormones that control our body's basal metabolism. It therefore plays a role in maintaining body weight, regulating body temperature, and ensuring proper reflexes, muscle strength, growth, and other functions.
The functioning of the thyroid and the synthesis of thyroid hormones is crucial for the optimal functioning of the body.
Thyro is specifically designed for people who consume little or no iodized salt and seafood, and whose iodine intake is therefore insufficient. This insufficient iodine intake leads to a lack of thyroid hormone production, a condition known as hypothyroidism (there are other causes of hypothyroidism). Thyro provides the essential nutrients necessary for the synthesis of thyroid hormones. This intake can indeed be deficient in cases of subclinical hypothyroidism.
Thyro was designed to provide all the elements necessary for the synthesis of thyroid hormones (Tyrosine, Iodine, Selenium, ...). The iodine provided by Thyro is of plant origin, it comes from the seaweed " laminaria digitata ", a variety of Kelp renowned for its natural supply of iodine in the form of potassium iodide .
Iodine is essential for the synthesis of thyroid hormones and its absence has multiple repercussions on the functioning of the thyroid and metabolism in general (goiter, hypothyroidism, weight gain, altered intestinal transit, lack of “energy”, feeling cold, etc.).
Thyro provides the nutrients necessary for proper thyroid function. It also contains Guggul ( Commiphora wightii ). Guggul, long used in Ayurvedic medicine (in Europe, the health claims for Guggul are currently under review by the EFSA), is rich in guggulsterones. These components are known for relieving rheumatic pain and normalizing blood lipids.
Guggul also has properties that allow for the maintenance of thyroid function (see the claims section).

L-Tyrosine , one of the building blocks used in the production of thyroid hormones, is a precursor of catecholamines and thyroid hormones.

Oats , Guggul , Eleutherococcus , and Kelp . Kelp, in particular, provides a natural source of iodine, optimal for the synthesis of thyroid hormones. Iodine deficiencies exist in France. The INCA 2 study showed that 43% of women of childbearing age are deficient in iodine, which is essential for thyroid function. Iodine deficiencies lead to a decrease in the synthesis of thyroid hormones and therefore to hypothyroidism.

Selenium, zinc, beta-carotene, iron, vitamin E, vitamin B1, vitamin B2, vitamin B6. These different nutrients were chosen for their interaction with the thyroid:
Selenium, with its antioxidant properties, is necessary for the functioning of thyroid thyroid peroxidase, which allows the use of iodine.
Zinc is an essential cofactor for the synthesis of thyroid hormones.
Iron is also involved in the functioning of tyroperoxidase.
The various vitamins selected also participate in the synthesis of thyroid hormones.
The initial formula of Thyro was conceived more than 10 years ago in collaboration with Professor Patrick Fénichel, a pioneering endocrinologist in environmental medicine and the impact of our environment on our health, and founder of the AMEA association for the prevention of damage related to pollutants and endocrine disruptors.
The initial formula has evolved as new scientific studies on the effectiveness of certain natural ingredients have been published.
Thyro has been specifically formulated to allow an optimal supply of tyrosine and iodine in order to avoid certain cases of hypothyroidism.
Our quality commitments regarding the Thyro:
Quality is a driving force behind innovation at Phytocea. We want to offer the best to our customers while remaining within affordable price ranges. This quality is reflected in several aspects:
👉🏻 Locally produced and controlled, with certified ingredients
👉🏻 Total transparency about the origin of our ingredients
👉🏻 A formulation approach validated by an independent Scientific Council
👉🏻 Using the most concentrated and effective forms of our active ingredients
L-Tyrosine, oat extract* ( Avena sativa ), guggul extract* ( Commiphora wightii ), eleutherococcus extract* ( Eleutherococcus ), kelp extract* ( Laminaria digitata ), lamin Se (selenium), organic beta-carotene (20%), zinc pidolate, iron gluconate, vitamin E, vitamin B1, vitamin B2, vitamin B6, anti-caking agent: rice powder, vegetable capsules (hydroxypropylmethylcellulose). *Ingredients from organic farming
| Ingredients | Per 2 capsules | % of AR* |
| L-Tyrosine | 250 mg | - |
| Oats | 100 mg | - |
| Guggul | 100 mg | - |
| Eleutherococcus | 50 mg | - |
| Kelp | 50 mg | - |
| - including iodine | 150 µg | 100% |
| Selenium | 56 µg |
102% |
| Beta-carotene | 0.8 mg |
- |
| Zinc | 7.6 mg | 101% |
| Iron | 7.5 mg | 68% |
| Vitamin E | 15 mg | 150% |
| Thiamine (Vitamin B1) | 1.52 mg | 136% |
| Riboflavin (Vitamin B2) | 1.4 mg | 88% |
| Pyridoxine (Vitamin B6) | 1.7 mg | 114% |
*Recommended intake
We recommend taking 2 Thyro capsules in the morning on an empty stomach with a large glass of water.
At Phytocea, we have chosen transparency and information. The Guggul present in Thyro does not yet have any health claims formally validated by the EFSA. In accordance with European regulations, these pending claims may be used subject to conditions and at the manufacturer's discretion. For your information, the claims relating to cardiovascular health, maintaining normal serum lipid levels, maintaining mental and nervous system comfort, and maintaining proper thyroid hormone balance are pending validation by the EFSA under numbers 4017, 4256, 4019, 4025, and 1925.
Do not use if you have a known intolerance to any of the components.
Do not exceed the recommended daily dose.
Dietary supplements should be used as part of a healthy lifestyle and a varied and balanced diet.
Prolonged use is not recommended without medical advice.
Pregnant women should seek medical advice before using Thyro.
Do not consume while breastfeeding.
Keep out of reach of children.
Do not use on children.
According to the rules established by the European health authorities (EFSA, European Food Safety Authority and the European Commission), Thyro meets several conditions allowing it to claim health claims.
normal energy metabolism
to the normal functioning of the heart
to the normal functioning of the nervous system and normal intellectual capacities
normal energy metabolism
to the normal functioning of the nervous system
to maintain normal skin and mucous membranes
to normal vision
to maintain normal red blood cells
to normal iron metabolism
to the reduction of fatigue
to the protection of cells against free radicals
normal energy metabolism
to the normal functioning of the nervous system
to normal cysteine synthesis and normal homocysteine metabolism
to the reduction of fatigue
to the normal metabolism of glycogen and proteins
to normal mental functions
to the formation of red blood cells
to the normal functioning of the immune system
to the regulation of hormonal activity
to the protection of cells against free radicals
normal energy metabolism
to normal intellectual functions
to the normal functioning of the nervous system
to normal skin health
to the normal production of thyroid hormones and the normal functioning of the thyroid
to normal sperm production,
to maintain normal hair and nails,
to the normal functioning of the immune system,
to the protection of cells against free radicals
to the normal functioning of the thyroid
to normal DNA synthesis
with normal acid-base metabolism
to the normal metabolism of food, carbohydrates, fatty acids, vitamin A
to normal intellectual functions
to normal fertility and reproduction
to protein synthesis
to the maintenance of bones
to the maintenance of hair, nails and skin
to maintain normal blood testosterone levels
to normal vision
to the normal functioning of the immune system
to cell division
to the protection of cells against free radicals
normal energy metabolism
to normal intellectual functions
to the synthesis of hemoglobin and red blood cells
to the transport of oxygen in the body
to the normal functioning of the immune system
to reduce fatigue
to cell division
Other resources
(19) Health claims pending validation by EFSA
(20) European Register of Claims
The information in this sheet takes into account the framework of health claims authorized in accordance with European legislation on food supplements (EC No. 1924/2006).
L'iode et le sélénium contribuent à une fonction thyroïdienne normale.
Allégation de santé autorisée par l'EFSA.
L'iode contribue à la production normale d'hormones thyroïdiennes.
Allégation de santé autorisée par l'EFSA.
L'iode contribue à un métabolisme énergétique normal.
Allégation de santé autorisée par l'EFSA.
Acide aminé précurseur des hormones thyroïdiennes
Source naturelle d'iode pour la synthèse hormonale
Essentiel à la conversion des hormones thyroïdiennes
Résine ayurvédique traditionnellement utilisée pour la thyroïde
Plante adaptogène pour la résistance au stress