Thorne Research Thyrocsin

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Thorne Research was founded over 30 years ago, but it has only recently emerged into the spotlight due to their involvement with sports nutrition. About a year ago, they partnered with the U.S. National Governing Bodies for fencing, gymnastics, soccer, and a few other sports to become their exclusive nutritional supplement source. That means that Team USA athletes likely receive certain supplements from Thorne for free and if you purchase certain supplements from certain areas of Throne’s website, they donate a portion of the profits to Team USA as well. It is great that Throne Research is such a big supporter of USA athletes!

For this review, we focused on Thyrocsin, Thorne’s flagship supplement for thyroid support.

What is Thyrocsin?

According to Thorne Research, Thyrocsin is focused on supporting healthy thyroid functionality and providing the nutrients necessary for conversion of thyroid T4 to T3 hormones outside of the thyroid gland. Thyrocsin opts for most of the essentials in their thyroid support supplement, instead of trying to put a lot. These vitamins, minerals, and herbs are: Vitamin C, Vitamin E, Vitamin B12, Iodine, Zinc, Selenium, Copper, L-Tyrosine, and Ashwagandha. The exact amounts of each are detailed below in the supplement facts image. It’s great that Thyrocsin includes many of these familiar and tested ingredients with research to back them up, as we will talk about soon.

Each bottle of Thyrocsin has 120 capsules and the recommended usage is to take two of them daily. Therefore, each bottle should last 60 days or about 2 months.

Thyrocsin Effects and Benefits

Thyroscin Label

We all know (or at least should be now!) how Iodine, Selenium, and L-Tyrosine effect the thyroid. If you don’t want to read the linked articles, that’s fine! The basic gist is that it helps a lot so its great that Thyrocsin includes them. We have not wrote detailed analysis on Copper, Vitamins E, or B12 (yet!) but they are valuable for the thyroid as well, though not as much as the other essentials mentioned before.

Thorne Research has included Vitamin C in this supplement, which is something new. We have been advocating it for some time to certain supplement manufacturers, but until now we haven’t seen this before. It’s great that Thyrocsin includes it. From the research and clinical studies we have read so far, Vitamin C has a huge potential of increasing TSH levels and lipid peroxidation in certain areas of the thyroid. We’ll probably write an article on this soon, as many consider it a forgotten element of thyroid supplements.

It is interesting that Throne Research uses a particular type of ashwagandha in Thyrocsin, called KSM-66 Ashwagnadha. KSM-66 is basically a brand name version of ashwagandha that claims to have the highest-concentration extract on market. At worst, KSM-66 is like all the other ashwagandha extracts, but it is far more likely that KSM-66 is at least a bit better. However, on the other hand, Thyrocsin does include a bit less ashwagandha than usually found in most thyroid supplements. It is interesting whether the “higher quality” ashwagandha will balance out the lesser amount. Nevertheless, we do know that ashwagandha is very useful and beneficial for the thyroid.

On the other hand, Thyrocsin is also missing some of the other essential commonly found in most thyroid supplements. We’re talking about magnesium, manganese, molybenum, and herbs such as schizandra and cayenne pepper. Perhaps including these ingredients would skyrocketed the cost of the supplement. Or maybe it would have interacted with the other elements in some adverse way. Regardless, the absence of certain components of what experts consider a whole thyroid support supplement formula, unfortunately makes Thyrocsin an incomplete thyroid supplement for everyone, in our opinion.

  • Contains Iodine, high quality Ashwagandha
  • Useful Vitamins and Minerals
  • Vitamin C

  • Formula is lacking
  • Small amounts of some elements

Thyrocsin Review and Experiences

Taking Thyrocsin has generally experienced positive reactions. No doubt a result from its formula that covers most thyroid deficiencies, Thyrocsin has the potential of providing many benefits for the person who takes it by support healthy thyroid functionality and improving energy levels. However, there is still a small but significant amount of people who believe that Thyrocsin did little, if anything for them and who do not feel much different after taking it. Perhaps for these people, Thyrocsin’s formula did not cover all, or any, of the deficiencies they experience and have. It is always better to have a complete solution to a problem rather than one that only covers parts of the problem.

To purchase one bottle of Thyrocsin from Thorne Research, you’re looking at $29.60. As we mentioned earlier, the bottle lasts for 2 months, so its not the cheapest we have seen nor the most expensive. Contrary to what most other thyroid supplements offer, however, Thorne Research does not give discounts for bulk purchases. Regardless of whether you purchase just one or multiple bottles at a time, they will all be $29.60 each, resulting in Thyrocsin actually being more expensive than about 90% of products we reviewed. Some will find that it is worth the price ,while for others, Thyrocsin won’t be the answer for them.



8.5 Total Score

Supports Thyroid Functionality
Improves Metabolism
Increases Energy Levels
Side Effects
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  1. Reply
    Janice May 19, 2018 at 9:50 am

    I was wondering if I’m a candidate for thyroxin? I had thyroid cancer five years ago and presently taking Synthroid medication.

  2. Reply
    Rachana April 25, 2018 at 4:55 am

    “Regardless of whether you purchase just one or multiple bottles at a time, they will all be $29.60 each, resulting in Thyrocsin actually being more expensive than about 90% of products we reviewed.”

    This one is actually cheaper than the rest considering it comes in a package of 120 capsules right? Thyromate and Thyrochoice are both 60 capsules, which is quite expensive.

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