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Thorne Research, Thyrocsin, Thyroid Cofactors, 60 Veggie Caps

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In Stock
  • Expiration Date: Jan 2018
  • Shipping Weight: 0.18 lbs (0.08 kg)
  • Product Code: THR-76501
  • UPC Code: 693749765011
  • Package Quantity: 60 Veggie Caps
  • Dimensions: 2 x 2 x 3.9 in, 0.15 lbs (0.07 kg)
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Save $3.85 when you purchase these items today for only $20.64
Total: $24.49
Combo Discount: - $3.85
Together: $20.64

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Product Overview


  • Dietary Supplement
  • Hypo-Allergenic

Withania standardized to withanolides 1.5%

Nutritional support for thyroid function

  • Contains nutrients and botanicals that enhance T4 production
  • Provides key nutrients for peripheral conversion of T4 to T3
  • Helps optimize metabolism
  • Unique, non-glandular formulation available only from Thorne Research

Suggested Use

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

Other Ingredients

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


Tamper Evident: Use only if bottle is sealed. Store tightly sealed in a cool, dry place.

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

Supplement Facts
Serving Size: Two Capsules
Servings per Container: 30
Two Capsules Contain: Amount Per Serving % DV
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 *
*Daily Value (DV) not established.
iHerb Customer Reviews

love it!

Posted by 4790189445741674161 on Jan 14, 2017

My naturopath recommended this product to me. I was having trouble losing weight even though my diet was good and I walk about 6 miles a day 4 days a week at my job. After taking this for about 4 week I began losing weight.

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Posted by Reviewer2897600 on Oct 26, 2016

I have been suffering extreme fatigue, along with other symptoms indicative of hypothyroidism. However, all my tests came back normal and my doctor couldn't really explain why I feel fatigued all the time. My doctor's "Just rest when you're tired" advice is not really helpful if you have to go to work everyday. I used to take another product made by another company, and that worked very well until they changed the formula to make it a weight loss product. I thought it would be okay and continued taking it because all the original ingredients were still listed, except they added a few extra ingredients. Unfortunately, I started feeling fatigued again--that extreme feeling of tiredness even when I'm just sitting down and not doing anything physical. While I don't really like all the ingredients in this product, I have to admit that it does work for me. As with the other product, I didn't even notice that it was working at first. There's no energy surge or any other indication that it was working. I only realized that it was working because I have gone 3 days straight without suffering from fatigue. Sure, I still get tired if I do a lot of physical activity, but that's normal. I am praying that they don't change the ingredients on this product because it's been a long time since I felt normal.

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so far so good!

Posted by 5314571834638852541 on Jun 22, 2016

still using it and at early stage, but I'm satisfied.

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More energy and power for my day

Posted by 4618930397963169413 on May 19, 2016

I have a tumor in my cella and this product help me keep going. It has helping me to get up at morning and I don't need anymore to sleep like 10-12 h at night. Also I have noticed that when I take this product I don't need to eat so much everything unhealthy snacks. So I feel this really make my life better.

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Great Product!

Posted by Reviewer1224909 on May 13, 2012

I am really happy to have come across this. It has helped with a number of problems, one of them being fibromyalgia, energy level, sleep, etc. I took it for three weeks in April. In the beginning I took twice a day, but realized I needed less. I quit for two weeks, but realized how much it was helping and started back taking it. If you take too much it can make your heart race and leave you irritable. Most days I take two, but it is not something that I need everyday, so I take as needed. It's a fairly new product for me, but seems to be helping me a great deal.

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