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Thorne Research Thyrocsin

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Thorne Research Thyrocsin contains a variety of minerals, selenium, zinc, and copper .*


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Thorne Research Thyrocsin Product Information

The hormones thyroxine (T4) and triiodothyronine (T3) are produced by the thyroid gland. These hormones are essential to the proper development of cells in the body. Thyroid hormones regulate the metabolism of proteins, fats, and carbohydrates, affecting how these compounds produce energy. Individual thyroid hormones have important functions in the body; for example, T4 may support cardiac output, heart rate, respiratory rate, and basal metabolic rate (BMR).* A low BMR may cause one to be fatigued, chilly, and have trouble losing weight.

Thyrocsin provides supportive nutrients for a healthy thyroid gland.* Not only does Thyrocsin support healthy thyroid function, it also provides nutrients necessary for conversion of T4 to T3 in the tissues outside the thyroid gland.* iodine is necessary for formation of T4, while L-tyrosine is a necessary component of both T4 and T3 formation. Thyroid hormones are involved with metabolism throughout the body. Thus, a deficiency or excess of thyroid hormones can have far-reaching effects. High cortisol levels can interfere with thyroid function, resulting in low T4 or poor conversion of T4 to the active form, T3.*


These statements have not been evaluated by Health Canada or the FDA. This product is not intended to diagnose, treat, cure, or prevent any disease.


Nutrition Facts
Serving Size: 2 Capsules

Amount Per Serving

% Daily Value *
 Vitamin C (as Ascorbic Acid) 200 mg  333% 
 Vitamin E (as d-Alpha Tocopheryl) 100 IU  333% 
 Vitamin B12 (as Methylcobalamin) 100 mcg  1,667% 
 Iodine (as Potassium Iodide) 225 mcg  150% 
 Zinc (as Zinc Picolinate) 5 mg  33% 
 Selenium (as Selenium Picolinate) 100 mcg  143% 
 Copper (as Copper Picolinate) 500 mcg  25% 
 L-Tyrosine 500 mg 
 Ashwagandha extract (root) (Withania somnifera) 150 mg 
* Percent daily values are based on a 2000 calorie diet
† Daily Value not established
Note: Serving Sizes are rounded to the nearest whole serving


Other Ingredients: Hypromellose (derived from cellulose) capsule, leucine, silicon dioxide.

Recommended Use: Take 2 capsules two times daily or as recommended by your health-care practitioner.

Warning: If pregnant, nursing, or trying to conceive, consult your health-care practitioner before using this product.

Customer Reviews

Improves metabolism and energy levels. Review by Linda
This formula seems to improve energy levels. I plan on trying it for a second month to see additional benefits. (Posted on 5/20/2016)*


Testimonials / Success Stories Not Necessarily Typical - (The results described in the testimonials above, and elsewhere on this site, do not necessarily describe the typical or average results, and should not be taken as such. Your results may differ greatly.) See also: Testimonial Disclaimer

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