A comprehensive thyroid-focused formula with iodine and selenium, which contribute to normal thyroid function, plus vitamin B12 and KSM-66® ashwagandha in a carefully balanced daily capsule.
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Recommended pairing
People complement Thyrocsin with Astaxanthin as Astaxanthin's antioxidant properties support overall cellular health, helping to enhance the benefits of thyroid support provided by Thyrocsin.
Supports normal thyroid function with iodine and selenium.
Vitamin B12 supports energy metabolism.
Includes KSM-66® ashwagandha extract.
With glycinate chelated zinc.
Thorne Thyroid Health Complex (formerly Thyrocsin) is a capsule formula combining vitamins, minerals, amino acids, and botanical extract. It is designed to complement your daily nutrient intake with carefully selected ingredients.
The formula includes iodine, which contributes to normal production of thyroid hormones and normal thyroid function. It also contains selenium and zinc, which contribute to normal thyroid function. Vitamin B12 contributes to normal energy-yielding metabolism and normal psychological function.
With L-tyrosine, KSM-66® ashwagandha extract, vitamin C, vitamin E, copper, and glycinate chelated zinc, this blend brings key nutrients together in one convenient capsule.
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Why Thorne is Healf
What sets Thorne apart is its third-party testing and certification, ensuring that the contents of the package match the label and are free from unsafe levels of contaminants like heavy metals, pesticides, and microorganisms. This commitment to purity and accuracy gives you peace of mind knowing that what you’re taking is safe and effective .
Thorne sets the standard for excellence in the supplement industry. Recommended by over 100 professional sports teams and U.S. National Teams, Thorne offers a curated bundle of clean, science-backed supplements and treats designed complement a healthy lifestyle. With more than 30 years of dedication to quality, Thorne's commitment to purity and potency begins with sustainably sourced ingredients and rigorous testing. Every supplement undergoes four rounds of testing to ensure optimal absorption, safety, and efficacy, making Thorne the trusted choice for both health-conscious individuals and professionals.
With our Healf Curation Process, we do the work for you. Shop with confidence knowing that every item has been tried, tested, and curated for you.
Learn more about each step—Brand Discovery, Expert Validation, and Community Testing—here.
Take 2 capsules two times daily or as recommended by your health professional.
Additional Information:
Food supplements and foods sold by Healf should not be used as a substitute for a varied, balanced diet and healthy lifestyle.
If you are pregnant, breastfeeding, have a medical condition, or are taking any medications, please consult with a healthcare professional before use. Use products only if the seal is intact. Store in a cool, dry place, out of the reach of young children. Do not exceed the recommended daily intake.
We make every effort to ensure that product information on our website is accurate and up to date, but packaging and ingredients may occasionally vary from images shown on site. Please refer to the product label and contact Healf before use if you have any questions regarding your specific allergies or intolerances.
These are the only vitamins that keep my thyroid in great function. I get tested every 6 months and while taking Thyrocsin, my f4 hormone is stable ,which flactuates a lot while I am not on them. Keep up the good work!
Noe N.
Verified Buyer
5 months ago
So far so good
First time buying this and I’ve noticed a positive change in my energy levels, brain fog and immune system after a month of taking :)
Alice J.
Verified Buyer
5 months ago
Best Thyrocsin on the market
My home and levels have completely rebalanced both on recent blood test and saliva tests. Highly recommend this product.
Graham W.
Verified Buyer
4 months ago
There are a lot of
There are a lot of brands out there but I’ve been happy w Thorne. I have no counter-factual, but my hypothyroid condition has been stable. Indicators are still borderline out of range but they haven’t really worsened in several years.
Every product undergoes our Healf Curation Process. With it, you can shop confidently knowing that every item has been tried and tested before it reaches you. Our Healf Curation Process includes three key steps: Brand Discovery, Expert Validation, and Community Testing. Through these, we assess quality, ingredients, effectiveness, and more, ensuring that every product empowers your wellbeing.
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Every product undergoes our rigorous Healf Curation Process, ensuring you are always getting the best when it comes to your wellbeing.
The Discovery
Our approach keeps us at the forefront of wellbeing. With our global network of health professionals and AI-powered trend analysis, we curate the leading supplements, tools, and tech that pioneer the industry.
Expert Validation
Each product at Healf is carefully examined by a panel of industry specialists—including dieticians, personal trainers, psychologists, and sleep experts—to ensure it meets our high standards for quality, efficacy, and ingredient formulations.
Community Testing
By collaborating with a dedicated group of customers who test and review each product, we ensure that only those truly beneficial to your wellbeing are offered here at Healf.
The Discovery
Our approach keeps us at the forefront of wellbeing. With our global network of health professionals and AI-powered trend analysis, we curate the leading supplements, tools, and tech that pioneer the industry.
Expert Validation
Each product at Healf is carefully examined by a panel of industry specialists—including dieticians, personal trainers, psychologists, and sleep experts—to ensure it meets our high standards for quality, efficacy, and ingredient formulations.
Community Testing
By collaborating with a dedicated group of customers who test and review each product, we ensure that only those truly beneficial to your wellbeing are offered here at Healf.