Ingrdients
Product name: | Thorne Thyrocsin |
Content: | 120 vegetarian capsules |
For whom: | Adults, Women |
Supplement Facts per 2 capsules (Serving Size)
Amount | IE/IU ‡ | RI † | |
Vitamin B12 (methylcobalamin) | 100 mcg | 4000% | |
Vitamin C (Ascorbic Acid) | 200 mg | 250% | |
Vitamin E (D-alpha tocopherol) | 67 mg | 100 IE | 558% |
Iodine (potassium iodide) | 225 mcg | 150% | |
Copper (copper bisglycinate chelate) (TRAACS®) | 500 mcg | 50000% | |
Selenium (L-selenomethionine) | 100 mcg | 182% | |
Zinc (zinc bisglycinate chelate) (TRAACS®) | 5 mg | 50% | |
L-Tyrosine | 500 mg | ||
Ashwagandha extract (KSM-66®) (root) (Withania somnifera) (5% withanolides) | 90 mg |
Ingredients L-tyrosine, vitamins, ashwagandha, minerals, vegacap (hypromellose), anti-caking agents (l-leucine, silicon dioxide).
Explanation of the composition
‡ IE/IU = International Units. IE/IUs are only used for vitamins A, D and E. The exact definition of 1 IE/IU varies per substance and is established in international agreements.
†RI stands for Reference Intake and replaces the RDA (Recommended Daily Allowance). RI is a guideline for the intake of vitamins and minerals in particular. RI and ADH are equal in number.
Usage advice
Suggested use
Take one to two capsules twice a day.
Stick to the recommended daily dosage, unless otherwise advised.
A varied, balanced diet and a healthy lifestyle are important. Nutritional supplements are not a substitute for a varied diet. More usage advice.
Storage advice Store in a cool, dry and dark place. Not in the refrigerator.
Keep out of reach of children.
Best by date 120 capsules: May 2026
Allergy information / Warnings
Warnings |
Consult your doctor in case of symptoms of liver problems. Ashwagandha may cause liver problems in rare cases. |
Consult your doctor or pharmacist before using with antidepressants |
Consult your physician or pharmacist before use if you have thyroid disease and/or are taking thyroid hormones. |
Do not use if you are pregnant, nursing or trying to conceive. |
This supplement is: |
Not suitable for vegetarians |
Not suitable for vegans |
Stick to the recommended daily dosage, unless otherwise advised.
A varied, balanced diet and a healthy lifestyle are important. Nutritional supplements are not a substitute for a varied diet.
Thorne Thyrocsin
Thyrocsin from Thorne is a thyroid formula containing ashwagandha, L-tyrosine, iodine, selenium, copper, zinc and vitamins B12, C, E. Iodine and selenium are known for their supportive effects on the thyroid gland and thyroid hormone production. The other ingredients make a magnificent addition and work as co-factors in this formula.
Re-introduction
About 10 years ago, Thyrocsin was one of our most popular Thorne products. Unfortunately we had to take it out of our range due to new EU legislation. Fortunately Thorne has adapted the composition so now we can sell it again.
Patented ingredients

KSM-66® is a registered trademark of Ixoreal Biomed, Inc.

TRAACS™ (The Real Amino Acid Chelate System) is a registered trademark of Albion Minerals.
Other information
Dietary supplement Combination supplement
Produced by Thorne Research Inc.
Summerville USA
For Smeets & Graas
G. Meirstraat 11
9728 TB Groningen
050 850 36 88
Last page change
24 februari 2025
Comments
Deviations from the label It may happen that texts on our website differ from the texts on a product's label.
Health issues If you have health issues and/or are taking medication, always consult your doctor before taking certain supplements.
Pregnancy/breastfeeding, children If a product does not explicitly state that it is intended for pregnant or breastfeeding women, or children, we recommend consulting an expert first.
More information For more information on label discrepancies, what to do in case of
health complaints, and answers to other questions, please visit our
Frequently Asked Questions page.
Contact If you still have questions, please feel free to contact us.