T3 Conversion Booster - T3 Thyroid Support Supplement

T3 Conversion Booster – Naturally Support T4 to T3 Conversion (60 Day Supply)


T3 Conversion Booster is a natural way to support T4 to T3 conversion by supplying your body with the ingredients, vitamins, and botanicals necessary for this process. It can be used with all thyroid medications and formulations to help manage low thyroid symptoms.*

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Increase Free T3 Levels Naturally with T3 Conversion Booster

T3 Conversion Booster contains 10 unique and specific ingredients designed to help the 3 most important pathways involved in thyroid function in your body:

#1. T4 to T3 Conversion (this may be the most important)

#2. Thyroid Cellular Sensitivity

#3. Thyroid Hormone Biosynthesis (the creation of thyroid hormone)

YouTube video

These 3 steps help your body not only create thyroid hormone but also allow that thyroid hormone to be active at the cellular level.

Due to nutrient deficiencies, poor diet, and soil depletion, many patients may end up with sub-optimal levels of these specific and unique ingredients.

The replacement of these nutrients has been shown in clinical studies to help improve thyroid hormone levels if deficient (please see literary citations and studies below).

T3 Conversion Booster was designed to help patients stuck in the conventional treatment paradigm of T4-only thyroid treatment. These patients are often on T4-only medications such as Levothyroxine, Tirosint, and Synthroid.

In this setting taking supplements designed to increase free T3 levels may actually improve thyroid function overall.

This can be accomplished by replacing nutrient deficiencies, by reducing inflammation, and by promoting thyroid hormone biosynthesis.

Dr westin childs photo

Why Dr. Childs Recommends it

T3 is the most important thyroid hormone in your body. As a thyroid patient, you should put most of your effort and energy into improving T3 levels if you want to feel better!

T3 Conversion Booster was specifically formulated to naturally help your body create more of that powerful thyroid hormone. And because so many thyroid patients aren’t converting well, enhancing this process is a no-brainer for just about every thyroid patient.

T3, T4, Reverse T3 & Basic Thyroid Physiology

You probably know about T4 and TSH but do you know about T3 and reverse T3?

When it comes to thyroid function ALL of these measures are important and helpful in correctly diagnosing thyroid dysfunction in the body.

T4 and TSH are routinely tested by physicians but T3 and Reverse T3 may not be tested unless specifically asked for.

And this is incredibly important for the following reasons:

#1. T4 is the INACTIVE thyroid hormone in your body (Thyroid medications like Synthroid, Levothyroxine, and Tirosint contain T4)

#2. T3 is the ACTIVE thyroid hormone in your body (Your body must turn T4 into T3 in order for it to be active)

#3. Reverse T3 is an INACTIVE thyroid metabolite that may compete with T3 levels in your body

As you can see, your T3 and reverse T3 levels give you information about peripheral conversion in your body.

And that’s where T3 conversion booster steps in…

T3 Conversion Booster contains ingredients, nutrients, and supplements specifically involved in the conversion process of T4 the inactive thyroid hormone to T3 the active thyroid hormone.

Increasing T4 to T3 conversion will also help reduce reverse T3 levels and may help thyroid status in your overall body.

Understanding this basic physiology is critical because it allows you to take your health into your own hands and do what you can to help increase thyroid function beyond simply taking thyroid hormone medication.

Symptoms of Low T3 & Signs you Need More

Did you know that you can still have hypothyroid or low thyroid symptoms even though you are taking thyroid hormone replacement medication?

These symptoms may stem from an underlying problem known as low T3 syndrome.

Low T3 syndrome may result in hypothyroid symptoms even though your TSH and free T4 levels may be relatively normal.

T3 is the single most important thyroid hormone because it is THE active thyroid hormone in your body.

How do you know if you have low T3?

You can assess your T3 levels with serum laboratory tests such as Free T3, but you can also find low T3 levels through clinical assessment of your symptoms.

Symptoms of Low T3 include (remember that these symptoms may persist even though you are taking thyroid hormone replacement):

  • Weight gain despite healthy eating and exercise
  • Cold hands and extremities despite taking thyroid medication
  • Swelling, especially around the eyes
  • Fatigue or low energy
  • Menstrual irregularities
  • Low body temperature and/or low resting heart rate
  • Hair loss, brittle hair, and/or brittle nails
  • Depression, anxiety, or mood changes
  • Chronic constipation

The presence of these symptoms may indicate persistent thyroid dysfunction and should prompt further testing and evaluation for nutrient deficiencies involved in thyroid hormone conversion and production.

T3 Conversion Booster contains specific ingredients that may help promote these important cellular pathways.

Using Thyroid Conversion Booster with Thyroid Hormone

Can T3 Conversion Booster be taken if you are taking thyroid medication?

Yes, it was designed to be used both with thyroid hormone medication and without.

The idea behind T3 Conversion Booster is to help naturally increase T4 to T3 conversion while naturally decreasing T4 to Reverse T3 conversion.

One of the big problems with current thyroid hormone replacement therapy is that Doctors provide patients with T4-only thyroid medications such as Synthroid or Levothyroxine.

Taking T4-only thyroid medications such as these is fine IF your body is capable of converting T4 to T3.

Unfortunately, this is NOT the case for the majority of patients.

Factors such as stress, nutrient deficiencies, hormone imbalances, inflammation, chronic pain and depression all BLUNT the T4 to T3 conversion process and may make taking T4 only thyroid medication less effective.

T3 Conversion Booster is designed to help this problem by reducing inflammation and providing your body with the nutrients required for thyroid hormone conversion and cellular sensitivity.

T3 Conversion Booster can safely be taken in conjunction with thyroid hormone replacement therapy but we recommend that you use this supplement 30-60 minutes after taking your thyroid hormone.

While it is unlikely that T3 conversion Booster will negatively impact thyroid hormone absorption, we still recommend that these supplements be spaced apart.

The Complete Ingredient List: 2 Capsules Contain the Following

  • Vitamin A (as retinyl palmitate) 1500 IU
  • Vitamin D3 (cholecalciferol) 200 IU
  • Vitamin E (as d-alpha-tocopheryl succinate) 50 IU
  • Iodine (from organic Icelandic kelp)(Laminaria Digitata)(stem and leaf) 75mcg
  • Zinc (as zinc citrate) 5mg
  • Selenium (as L-selenomethionine) 100mcg
  • Guggulsterones (from guggul extract) Commiphora Mukul)(gum exudate) 50mg
  • Rosemary Extract (Rosemarinus Officinalis)(leaf) 50mg
  • Ashwagandha (Withania somnifera)(root) 50mg
t3 conversion booster ingredient list high res

Other ingredients: HPMC (capsule), stearic acid, silica, magnesium stearate, calcium silicate, and medium-chain triglyceride oil.

Directions: Take two capsules before noon each day and at least 30 to 60 minutes away from thyroid medication (if you take any).

Storage: Keep closed in a cool, dry place out of reach of children.

Does not contain: Wheat, gluten, yeast, soy protein, fish, shellfish, peanuts, tree nuts, egg, artificial colors, artificial sweeteners, or artificial preservatives.

The T4 to T3 Conversion Blend (Help increase peripheral thyroid conversion)* 

T3 Conversion Booster is specifically designed to contain ingredients that help boost thyroid conversion. This unique blend of ingredients helps the body increase the natural T4 to T3 conversion process by providing the necessary nutrients for this process and by helping to reduce inflammation which can act to reduce this process.

  • Guggulsterones –> Studies have shown that guggulsterone may exhibit a strong thyroid stimulatory action when taken daily, in addition, studies have shown that guggul extract increases iodine uptake and enhances thyroid peroxidase function.*
  • Rosemary Extract –> This powerful anti-oxidant helps reduce inflammatory levels in the body and may help improve T4 to T3 conversion through this mechanism. Rosemary has also been shown to help improve cognition and may act as both an anxiolytic and anti-depressant.* (See literary references below)*
  • Ashwagandha –> Ashwagandha is an adaptogenic supplement that has been shown to help increase T4 and T3 levels, normalize TSH levels in patients with subclinical hypothyroidism and help improve cortisol regulation. This isn’t even taking into account the beneficial effects that Ashwagandha has on weight loss and the building of muscle mass. These benefits make Ashwagandha one of the premiere thyroid nutrients.*
  • Zinc –> Zinc acts as an antioxidant and anti-inflammatory agent in the body. Zinc also helps promote T4 to T3 conversion and many patients are zinc deficient.*
  • Selenium –> Selenium helps improve immune function and also helps promote T4 to T3 conversion and works very well when combined with zinc.*

The Thyroid Cellular Sensitivity Blend (Help improve thyroid cellular function)* 

In addition to boosting T4 to T3 conversion, your body must also be able to adequately utilize thyroid hormone at the cellular level. Several nutrients have been identified to be involved in this process and these ingredients are included in T3 conversion booster.

  • Vitamin A –> Vitamin A deficiency results in a reduction in total T3, total T4, Free T3, and free T4 which improves upon replacement. Furthermore, Vitamin A therapy appears to be involved in the enzymatic conversion of T4 to T3 in addition to thyroid cellular action.*
  • Zinc –> In addition to improving T4 to T3 conversion, zinc also may help promote thyroid cellular function.*

The Thyroid Biosynthesis Blend (Help your body produce more thyroid hormone)*

  • Iodine –> Iodine creates the backbone of thyroid hormone and is required in optimal amounts for proper thyroid hormone production. Low iodine may result in reduced thyroid function and hypothyroidism. Regulatory bodies recommend 150mcg of iodine daily for non-pregnant and non-lactating women and up to 220 to 290mcg per day for pregnant and lactating women while the average American daily consumption of iodine is estimated to be around 130mg per day. This creates up to a 20mcg to 90mcg deficiency in iodine per day in individuals unless they are actively consuming iodine-rich foods.
  • Vitamin D3 –> Patients with low thyroid function and more likely to have low levels of Vitamin D. In addition, the severity of hypothyroidism tracks closely with the degree of Vitamin D deficiency. Vitamin D also plays an important role in immune function and low levels increase the risk of developing an autoimmune disease such as Hashimoto’s thyroiditis.
  • Vitamin E –> Vitamin E helps protect the integrity of your cell membranes and acts as a powerful anti-oxidants which may indirectly help improve thyroid function.

Frequently Asked Questions

Yes! T3 Conversion Booster can be used with all thyroid medications including those that contain T3 like Cytomel, liothyronine, and formulations of NDT like Armour Thyroid.

Just remember that T3 Conversion Booster should be taken 30-60 minutes away from your thyroid medication.

Nope! T3 Conversion Booster contains natural ingredients which help your own body produce T3. This means that there is never a risk of overproducing T3 and why it can be added to medications that contain T3.

The recommended dose is 2 capsules taken each day (with or without food) before noon and at least 30-60 minutes away from your thyroid medication (if you take any).

At 2 capsules each day this supplement will provide you a 60-day supply.

Some thyroid patients may benefit from doubling this dose up to 4 capsules per day by taking 2 capsules in the morning and 2 capsules in the afternoon/evening. This is ideal for those with high reverse T3 levels or very low T3 levels.

Yes! Even if you no longer have a thyroid (or a non-functioning thyroid if you’ve undergone RAI) T3 Conversion Booster is still helpful. The reason is simple: your body still needs T3 and T4 to T3 conversion occurs outside of the thyroid gland.

You can safely make the argument that T3 Conversion Booster is even more necessary if you no longer have a thyroid because those without a thyroid often struggle with low T3.

The biggest difference is that T3 Conversion Booster does not contain active T3 thyroid hormone. It contains natural ingredients designed to help your body produce more thyroid hormone on its own.

T3 thyroid medication contains the active T3 thyroid hormone which is why it requires a prescription.

T3 Conversion Booster can be taken indefinitely and I recommend using it for as long as it is helping you feel better.

Most people notice an improvement in how they are feeling in about 4-6 weeks. This is just the average, though, as some people notice improvement sooner and others take a little while longer.

The best way is pay attention to how you are feeling! Most people know it’s working because they feel an increase in energy, an improvement in well-being, and an improvement in their thyroid symptoms.

What type of improvement you may experience depends largely on how your thyroid is impacting your overall health. Each person has a slightly different set of symptoms so how they respond to T3 Conversion Booster will vary as a result of this.

No, getting your T3 tested is not required before using this supplement. Having said that, you are certainly welcome to do that if you’d like!

T3 conversion booster is a supplement (not a medication) which means that it is generally very well tolerated and has minimal side effects.

Yes! In addition, it does NOT contain wheat, gluten, yeast, soy protein, dairy products, fish, shellfish, peanuts, tree nuts, eggs, artificial colors, artificial sweeteners, or artificial preservatives.

Yes! T3 Conversion Booster has been used by thousands of patients with Hashimoto’s without any issue. I formulated T3 Conversion Booster with a small dose of iodine accompanied by selenium to protect against any iodine-related issues.

Remember: Iodine is required by all humans because we can’t produce it on our own and we need it for thyroid hormone production. The key to using iodine safely is to use the right dose and to combine it with selenium. This supplement was specifically formulated to meet these requirements which is why it is quite safe.

Each serving of T3 Conversion Booster contains 75mcg of Iodine which is well below the recommended high range of iodine intake of 300mcg per day.

All product orders to the United States receive free shipping. We ship out within 1 day of your order (unless you order on the weekend) and it takes approximately 1-3 days to reach the destination depending on how far you live away from Arizona.

We offer international shipping as well! You can calculate the price of shipping at the checkout page (we do not mark up the cost of shipping) and currently we ship to all countries.

All of my products come with a 60-day money-back guarantee. I’m confident that my products will work for you but, in case they don’t, for whatever reason, you can return them for a full refund within 60 days. It makes purchasing them a no-brainer!

You can find more information about our return and refund policy by clicking here.

Yep! Every single batch of supplements undergoes third-party testing for heavy metals, pathogens, ingredient profile, and purity. In addition, my products are produced in a GMP-compliant facility in the United States.

Don’t hesitate to reach out! Please email us at hello@restartmed.com and we will do our best to get back to you within a day or so! You can also call us here: (480) 331-9431.

*These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease.

**Results may vary.

Questions about our quality standards? Please see this article for more information.

Scientific References

  • https://pubmed.ncbi.nlm.nih.gov/23378454/
  • https://pubmed.ncbi.nlm.nih.gov/7196691/
  • https://pubmed.ncbi.nlm.nih.gov/15531495/
  • https://pubmed.ncbi.nlm.nih.gov/6785400/
  • https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3921055/
  • https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5618598/
  • https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6166548/
  • https://pubmed.ncbi.nlm.nih.gov/28895880/
  • https://pubmed.ncbi.nlm.nih.gov/24533019/
  • https://pubmed.ncbi.nlm.nih.gov/23001627/
  • https://pubmed.ncbi.nlm.nih.gov/23255045/
  • https://pubmed.ncbi.nlm.nih.gov/9537635/
  • https://pubmed.ncbi.nlm.nih.gov/31805673/
  • https://pubmed.ncbi.nlm.nih.gov/28213641/
  • https://pubmed.ncbi.nlm.nih.gov/21406454/
  • https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4049553/
  • https://pubmed.ncbi.nlm.nih.gov/25591468/
  • https://pubmed.ncbi.nlm.nih.gov/11396709/
  • https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3063534/
  • https://www.ncbi.nlm.nih.gov/books/NBK28/
  • https://pubmed.ncbi.nlm.nih.gov/16131334/
  • https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3746228/
  • https://pubmed.ncbi.nlm.nih.gov/17541266/
  • https://pubmed.ncbi.nlm.nih.gov/30982439/
  • https://pubmed.ncbi.nlm.nih.gov/25758370/
  • https://pubmed.ncbi.nlm.nih.gov/20688624/
  • https://pubmed.ncbi.nlm.nih.gov/10201332/
  • https://pubmed.ncbi.nlm.nih.gov/31056723/
  • https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5307254/
  • https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8658851/
  • https://pubmed.ncbi.nlm.nih.gov/26313901/
  • https://pubmed.ncbi.nlm.nih.gov/1384621/
  • https://pubmed.ncbi.nlm.nih.gov/1284327/
  • https://pubmed.ncbi.nlm.nih.gov/26098657/

Additional information

Weight 0.25 lbs
Dimensions 2.5 × 2.5 × 5 in

Customer Reviews

Based on 1624 reviews
Alma C.
T3 Conversion Booster Thank God for these quality product combined with FAITH and watch great t...

T3 Conversion Booster Thank God for these quality product combine with FAITH and watch great things happen.

Marilyn F.

I certainly feel much better. Going to get a blood test to see how the levels are doing.

Great to hear the good news. Let us know if you have any questions.

Kim c.
Gaining weight

Been taking this for 2 months ! I haven’t noticed anything positive! I’ve actually gained 10 lbs ! I walk 5to 6 miles day and I lift weights 4-5 times a week ! I eat a very well balanced diet!

Please reach out to us at hello@restartmed.com to discuss your options. We stand behind our products.

Celene B.

T3 Conversion Booster - Naturally Support T4 to T3 Conversion (60 Day Supply)

Elaine G.
Conversion Booster

Not good...bad headache, made my Deppression Worst . Going to try once more...thank you

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T3 Conversion Booster – Naturally Support T4 to T3 Conversion (60 Day Supply)
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