Thorne Thyrocsin – 120 caps


Thorne Thyrocsin is a natural supplement designed to support thyroid health. It includes a blend of ingredients like tyrosine, vitamins E and C, selenium, ashwagandha, iodine, and zinc, which collectively enhance the production of the T4 hormone and its conversion to T3, essential for thyroid function​​​​.

It is formulated to maintain healthy thyroid function, support T4 to T3 conversion, and regulate normal cortisol levels​​. Additionally, it contains vitamin B12 to counteract the interference of thyroid hormone activity due to B12 deficiency and includes antioxidants to mitigate heavy metal toxicity and lipid peroxidation​​.

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Thorne Thyrocsin is an advanced supplement that provides comprehensive support for thyroid health. This meticulously formulated product contains a blend of essential nutrients and botanicals, specifically chosen for their ability to support the thyroid gland’s functions.

Key Ingredients and Benefits:

  • Iodine and L-Tyrosine: These are fundamental in the formation of thyroid hormones. Iodine is a crucial element in the synthesis of T4, while L-Tyrosine is a necessary component in both T4 and T3 hormones. This combination ensures efficient hormone production, essential for thyroid health.
  • Vitamin B12: Included to address potential deficiencies, Vitamin B12 plays a vital role in enhancing thyroid activity and supports the conversion of T4 to T3. This is significant as B12 deficiency can interfere with the effective functioning of thyroid hormones.
  • Antioxidants (Vitamins C and E): These are added to counteract heavy metal toxicity and lipid peroxidation, which can inhibit the conversion of T4 to T3. Antioxidants provide an extra layer of protection, ensuring the thyroid functions optimally.
  • Ashwagandha: An Ayurvedic herb known for its adaptogenic properties, ashwagandha has been shown in animal studies to increase T4 concentrations, suggesting its beneficial role in supporting thyroid hormone levels.

Who May Benefit:

  • Individuals looking to support their thyroid function, especially those experiencing symptoms related to thyroid health.
  • People seeking to maintain a balanced metabolism, heart rate, and respiratory function, which are influenced by thyroid hormones.
  • Anyone interested in a comprehensive approach to thyroid health, including those focusing on nutrient metabolism and cellular development.

** The Therapeutic Goods Administration has not evaluated these statements. This product is not intended to diagnose, treat, cure or prevent any disease. If you need further support, please work with a Functional Medicine practitioner at Fairfield Nutrition.

Weight .108 kg
Dimensions 6.3 × 6.3 × 11 cm



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Thyrocsin bottle
Thorne Thyrocsin – 120 caps

Out of stock