Hashimoto’s Ab Rx | Thyroid Antibody Support with Nigella Sativa (60 Servings)
$39.99 — or subscribe and save 5%
Tired of not having direct support for your thyroid antibodies? Hashimoto’s Ab Rx brings you clinically effective doses of compounds shown to target the root cause of autoimmune thyroid disease. Research suggests that nigella sativa, myoinositol, and selenium can help lower thyroid antibodies, increase free T3 and free T4, reduce TSH, reduce thyroid gland vascularity, and improve metabolic health.*
Say Goodbye To Elevated Thyroid Antibodies
Is using Hashimoto’s Ab Rx guaranteed to normalize your thyroid antibodies, bring your thyroid function back to normal, and kick your Hashimoto’s into remission?
Definitely not.
But it is a Hashimoto’s antibody support supplement that contains ingredients that have been shown in at least one double-blind placebo-controlled study to positively impact thyroid antibodies, thyroid function, and metabolic parameters like BMI.
And when you purchase any supplement from Dr. Westin Childs, you get the added benefit of knowing:
- Every single supplement is third-party tested by an ISO-accredited lab for purity, contaminants, microbes, mold, and heavy metals.
- Total transparency is the standard when it comes to reviews and opinions from people who have used our supplements (we have a 98% transparency medal from our third-party review aggregator judge.me)
- All of my supplements are made in an FDA-inspected and GMP-compliant facility.
Simple Dosing, Impressive Results

How to use for
Thyroid Antibody Support
For best results, take 4 capsules daily with or without food. If taking thyroid medication, use 30-60 minutes before or after.
Research-Backed Ingredients

Organic Black Cumin Seed (Nigella Sativa) 2,000 mg
Research shows that Nigella sativa can help lower thyroid antibodies and increase free thyroid hormone levels in patients with autoimmune thyroid disease. Hashimoto’s Ab Rx features the exact same ingredient and dose used in these clinical studies.

Selenium (as L-selenomethionine) 83 mcg
Selenium is a mineral used by the thyroid gland to create glutathione which protects it from oxidative damage. By neutralizing free radicals, you can protect against thyroid gland inflammation and damage. This formula contains the ideal concentration of selenium in a highly bioavailable form.

Myo-Inositol 600 mg
This sugar alcohol supports thyroid cell signaling and TSH function, leading to healthier TSH, T3, and T4 levels. When combined with selenium, research shows that inositol can help reduce inflammation and thyroid antibodies and slow down autoimmune attack on the thyroid gland.

Root Cause Support
Are you tired of just covering up your symptoms instead of addressing the root cause? Hashimoto’s Ab Rx can help. Formulated with clinically effective doses of powerful ingredients that specifically target the immune system, you can take steps to put your disease into remission instead of kicking the problem down the road.
Hashimoto’s Ab Rx features the exact ingredients and dosages used in clinical trials to treat patients with Hashimoto’s thyroiditis.
This research shows that supplementing with nigella sativa, myoinositol, and selenium may…
- Reduce thyroid antibodies by up to 40%*
- Reduce thyroglobulin antibodies by up to 51%*
- Reduce TSH levels up to 38%*
- Increase free T3 by up to 4.5%*
- Increase free T4 by up to 14%*
- Decrease body weight and body measurements*
- Reduce vascular endothelial growth factor (a measurement used to monitor Hashimoto’s progression)*
- Reduce food intake and satiety*
- Decrease insulin resistance*
- Decrease inflammation*
- Decrease oxidative stress*

Why Dr. Childs Recommends It
“The unfortunate reality for patients with Hashimoto’s is that there just aren’t very many good treatments available to help put their condition into remission.
While thymoquinone is not a miracle drug, its use provides patients with autoimmune thyroiditis a researched-back ingredient to help control their symptoms, reduce inflammation, and potentially lower thyroid antibodies. If you have an autoimmune thyroid condition, then you should seriously consider using this ingredient.”
Used by over 90,000 people who have left over 13,000 reviews
Ingredients That Work
Ingredients and dosages are thoughtfully chosen, relentlessly tested, and continually refined.
Physician Formulated
All formulas have been created by Dr. Westin Childs based on his clinical experience and evaluation of peer-reviewed scientific research.
Made in the USA
Our supplements are proudly made in the USA, with globally sourced ingredients, in a GMP-compliant facility and shipped from Mesa, Arizona.
Third-Party Tested
Every single supplement lot is third-party tested for heavy metals, microbes, mold, and contaminants by an ISO-accredited lab testing facility.
Free Domestic Shipping
Every order (regardless of price) placed in the U.S.A. will ship free with USPS.
60-Day Money Back Guarantee
If you don’t love your supplements then you can return them for a full refund! No questions asked and no hoops to jump through.
Frequently Asked Questions
The Hashimoto’s Ab Rx formula has been upgraded!
This completely revamped version now contains the following:
- Nigella sativa powder (2 g/day): Provides the same benefits as black seed oil without the bitter taste.
- Myo-inositol (600 mg/day): Supports improved TSH signaling and overall thyroid health.
- Selenium (83 µg/day as L-selenomethionine): Enhances antioxidant activity and helps lower thyroid antibody levels.
These doses mirror those used in clinical trials, which means you get proven support for your thyroid while enjoying a more convenient and better-tasting delivery method!
The recommended daily dose is 4 capsules taken each day, with or without food, and 30-60 minutes away from thyroid medication (if you take any).
Yes! Even though it has the name Hashimoto’s built-in, this supplement is still beneficial for ALL thyroid conditions.
I’ve specifically targeted the supplement towards patients with Hashimoto’s, but the truth is the active ingredients are helpful for everyone, even those without a thyroid.
Black cumin seeds and its active ingredients have been used for thousands of years to treat a variety of conditions ranging from acne, to high blood pressure, to thyroid problems, to high cholesterol, and just about everything in between.
For perspective, the Prophet Muhammad stated that “the black seed can heal every disease, except death”.
My formula draws from this ancient wisdom and increases its effectiveness multiple times over by taking advantage of recent research.
Yes, it’s still effective for those without a thyroid!
Even though you don’t have a thyroid, the powerful anti-inflammatory and antioxidant benefits will still help your body in a variety of ways.
They are all related and very similar to one another, but here are the actual definitions:
Nigella sativa: Nigella sativa is the official name used to describe the plant/herb that produces black seed oil. Traditional herbalists describe the herb as the herb from heaven given its many health benefits.
For clarification purposes, the double-blind placebo-controlled trial mentioned above used nigella sativa powder, not black seed oil.
While black seed oil has not been scientifically proven to have the same benefits as nigella sativa powder, it is highly likely that their benefits would be similar given the fact that nigella sativa is the plant from which black seed oil is produced.
Hashimoto’s Ab Rx builds on this logic by standardizing the active ingredients found in the nigella sativa plant and optimizing them for their immune-boosting potential.
Black seed oil: Black seed oil is the oil produced when the seeds of the flowering plant nigella sativa are pressed. Black seed oil is said to have many health benefits that can be obtained by concentrating the ingredients found in the nigella sativa plant.
Thymoquinone: Thymoquinone is the main ingredient found in black seed oil, which is said to be responsible for all of the benefits that occur when using black seed oil.
While Hashimoto’s Ab Rx contains ingredients that have been shown to be effective at helping to reduce thyroid antibodies, there’s no guarantee that this will happen in any individual.
Unfortunately, there are no guarantees in medicine even with surgeries and the use of prescription medications.
Each person is unique and may react differently to any given therapy, which makes pre-determining an outcome impossible.
Even though I can’t make any promises on outcomes, I can give you some helpful advice:
First:
When using Hashimoto’s Ab Rx with the intent to try and reduce your thyroid antibodies, make sure you combine it with diet, lifestyle changes, regular exercise, and stress management. This will increase the odds that you see the results you are looking for.
And second:
Even though your antibody levels are important, they shouldn’t be the end-all-be-all when determining if something is working. Thyroid antibodies do not always correlate with disease progression.
Thyroid function is slow to respond when compared to other hormone systems in the body.
It takes 6 weeks of daily use of any thyroid hormone or thyroid support supplement before your body will reach a steady state, which means it will take this long before it completely enters your system.
It’s usually around this time that you will start to see changes in how you are feeling, but I recommend using any thyroid support supplement or medication for at least 90 days before determining whether or not it’s working for you.
I’m so glad you asked!
It’s never really ideal to just take a supplement without putting in any extra effort or using it in addition to other treatments.
Yes, taking Hashimoto’s Ab Rx by itself will still be beneficial but it’s so much more powerful when combined with other changes.
Here are a few of my favorites:
#1. A whole food diet: There are many different types of diets that can help improve your thyroid health but they all have one thing in common: they include whole food. Use this resource to help you figure out which type of diet will be best for your situation.
#2. Regular exercise: Regular exercise is an easy way to improve your thyroid function and balance your immune system. Here’s how to exercise correctly.
#3. The use of supplements: I have an entire bundle designed to help those with Hashimoto’s and each supplement in this bundle focuses on a different aspect of thyroid function and immune health. Combining supplements together is always better than taking just one at a time.
#4. The use of low dose naltrexone: Using off-label medications like LDN may help reduce thyroid antibodies in certain individuals. Learn more about whether or not it’s right for you here.
#5. Getting quality sleep: Getting 8 hours of sleep is another easy way to boost your immune system and thyroid health. Here are some tips to help make that a possibility.
Combine these other therapies with your Hashimoto’s Ab Rx for the best results!
Great question!
Black seed oil is created from black cumin seeds which are then cold pressed until an oil is released.
While these two compounds are very similar (one is created from the other), they are not necessarily equivalent in terms of their benefits.
Hashimoto’s Ab Rx uses black cumin seed powder (nigella sativa) which is well-studied and most similar to a whole food (think oat flour versus oatmeal).
Black seed oil contains many of the same ingredients as the powder version, but the powder is preferred for the following reasons:
- It contains the fiber found in the whole food source of black cumin seeds.
- It has a more palatable flavor, which means it’s easier to consistently consume it.
- It’s easier to get to higher dosing using the powder over the oil and higher dosing means better results for you.
It’s for these reasons that we opted to have Hashimoto’s Ab Rx as a powder instead of an oil.
Naturally occurring substances like plants and oils contain many different active compounds.
The most bioactive substances found in this formulation include:
Thymoquinone: One of the most active ingredients in black cumin seeds, which is felt to be responsible for the majority of its health benefits. Thymoquinone must work in tandem with the other active ingredients, which is why you would never want just a thymoquinone supplement by itself.
P-Cymene: P-Cymene is a naturally occurring aromatic compound found in BSO which has been shown to enhance the anti-inflammatory effects of thymoquinone.
Carvacrol: Research suggests that carvacrol stabilizes and enhances the anti-inflammatory effects of thymoquinone.
Free Fatty Acids (FFA): These acids provide anti-inflammatory effects, cardiovascular support, cell membrane support, and synergize with other bioactive compounds like thymoquinone.
While your antibody levels can be used as a proxy measurement of how much damage is actively occurring in your thyroid gland, they are not a perfect measurement for this.
There are situations in which antibody levels can be elevated and very little to no thyroid gland damage is occurring, and there are situations in which antibodies are absent and thyroid gland damage is still occurring.
Even though they aren’t a perfect measure of thyroid gland damage, they are still useful because they are easy to track.
However, if you are taking advantage of natural therapies and you see an improvement in your thyroid symptoms but your antibodies are not falling like they should, this is not necessarily a situation to be worried about.
The presence of antibodies simply increases your risk of developing hypothyroidism, but they don’t guarantee that it will occur.
In other words, it’s still a great idea to strive to get your antibodies as low as possible but if you are unable to get them down to zero (or close to it), you don’t necessarily have to freak out, especially if your symptoms are controlled.
In short, do keep an eye on your thyroid antibody levels but don’t assume that what you are doing is not working if you don’t see those levels fall.
Possibly!
An analysis of 11 different studies showed that black seeds have the potential to help reduce body weight by up to 5 pounds without the addition of diet and exercise.
This data is limited, but it is encouraging.
It’s not known why black seeds help some people lose weight, but it’s thought to be due to its pro-thyroid effects (increasing thyroid function will impact metabolism) and its anti-inflammatory effects (obesity results in inflammation in the fat cells).
Even though it has the potential to help and some studies suggest that it may help with weight loss, I do not recommend using Hashimoto’s Ab Rx for this sole purpose.
Instead, I recommend using it as a thyroid and thyroid antibody support supplement and if weight loss occurs, well then that’s just an added plus.
Yes! Hashimoto’s Ab Rx can be used in conjunction with low-dose naltrexone.
No, here’s why:
Whole food sources of omega 6 fatty acids do not cause the same negative side effects that are seen and associated with industrial seed oils like canola oil, cottonseed oil, corn oil, etc.
The industrial seed oils, due to their heavy processing, are more prone to oxidative damage, which is part of the reason they can be harmful when consumed in large amounts.
The bottom line?
Don’t confuse whole food sources of omega 6 fatty acids (which are healthy) with industrial seed oils.
And don’t confuse black cumin seeds with seed oils more generally, because they are not the same thing!
The heavy processing and fragile structure of these oils is the problem, but this can be overcome with a whole food healthy source.
Yes! Even though Hashimoto’s Ab Rx has the name Hashimoto’s in it, it’s still effective for those with Graves’ disease.
Both Hashimoto’s disease and Graves’ disease are autoimmune diseases and can be considered two sides of the same coin.
They are far more alike than they are different, which means that many of the treatments that are effective for Hashimoto’s are also effective for Graves’ disease.
The only reason I don’t make more mention of Graves’ disease on this page is simply that there are far more people with Hashimoto’s than Graves’ disease, but the fact is that black seeds have the potential to help both conditions.
The easiest way to tell if a supplement is working or not is by paying attention to your symptoms.
If a supplement is working, then you will feel a positive change in how you are feeling.
This is much different from the approach that most thyroid patients are familiar with, which is to constantly check their thyroid lab tests.
Thyroid medications will definitely impact your thyroid lab tests because they contain active thyroid hormones.
Because thyroid supplements contain naturally occurring ingredients, they don’t usually have a big impact on thyroid lab tests.
Instead, they tend to work by impacting cellular functions, cell signaling, inflammation, and so on.
But here’s the deal:
Your thyroid lab tests are just a measurement of how much thyroid hormone is floating around in your bloodstream.
You don’t necessarily care about those numbers, what you care about is how those numbers are making you feel.
You should never make changes to your thyroid medication or thyroid supplements based on your thyroid lab tests unless you also put those numbers into context with how you are feeling.
Having said all of this, it’s still reasonable to keep an eye on your thyroid lab tests if you’d like to, but it is by no means necessary.
The majority of the patients who have used my thyroid support supplements over the years do not check their thyroid lab tests prior to using them.
If you feel more comfortable with that approach, then feel free to do it!
As with any of my supplements, I recommend that you consult with your ob/gyn or midwife prior to using any supplement while breastfeeding or while pregnant.
I know that’s a generic answer so here’s a little more information to help in your decision:
Based on available information, food doses of black seed seem to have no adverse effect during pregnancy but there are no data on higher doses (such as those found in this supplement).
For breastfeeding, black seeds have been used by some women to increase milk supply, but again, the data is lacking and this is just anecdotal.
Yes!
Hashimoto’s Ab Rx is still helpful and beneficial for patients with hyperthyroidism and Graves’ disease.
This is because the anti-inflammatory and antioxidant effects of the active compounds found inside have a balancing effect on immune function and thyroid gland inflammation.
Remember:
Even though Graves’ disease causes hyperthyroidism, the mechanism by which it causes thyroid gland disease is very similar to that of Hashimoto’s, which means there’s a lot of crossover in the treatment of both conditions.
In general, black seeds and thymoquinone are very well tolerated and generally do not cause any side effects.
Rarely, it has been reported that some people experience mild nausea and mild itching when using this ingredient.
Yes! All of my thyroid support supplements can be used with all thyroid medications.
They should never be taken at the same time, though. For best results, use Hashimoto’s Ab Rx at least 30-60 minutes away from your thyroid medication (either before or after).
Unfortunately, no.
I’ve seen cases where patients have been able to put their Hashimoto’s into remission with a few minor changes like just removing gluten or taking a few supplements.
And I’ve also seen cases where patients are aggressive as possible using all available off-label medications, prescriptions, hormones, supplements, and natural therapies, and they aren’t really able to put a dent in their disease progression.
Even though it’s not always possible, I still believe your goal should be to act like it is.
The reason is that the natural treatments that have the potential to put your Hashimoto’s into remission, like regular exercise, eating healthier, sleeping more, and managing your stress, are pretty much always helpful.
Don’t lose hope if you aren’t able to put your Hashimoto’s into remission, though, because you can still completely manage your thyroid symptoms with the use of thyroid medication as needed.
All domestic orders receive free shipping regardless of price. Orders are typically processed within 1 business day, they are shipped out via USPS Ground Advantage and typically arrive within 1-3 business days.
We also offer intentional shipping to most countries as well! International orders ship free if the order value is greater than $250 USD. Otherwise, the price of shipping is calculated on the checkout page. We primarily use USPS for international shipments.
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.
Questions about our quality standards? Please see this article for more information.
Scientific References
#1. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5112739/
#2. https://pubmed.ncbi.nlm.nih.gov/29559374/
#3. https://pubmed.ncbi.nlm.nih.gov/34080722/
#4. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3642442/
#5. https://pubmed.ncbi.nlm.nih.gov/32512788/
#6. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7501064/
#7. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5870944/
#8. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5767798/
#9. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8225153/
#10. https://pubmed.ncbi.nlm.nih.gov/29744941/
#11. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6535880/
Additional information
Weight | 0.25 lbs |
---|---|
Dimensions | 1.25 × 1.25 × 4 in |
*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.
Really enjoying the product. Better nail health and no palpitations.
I bought a bottle and did not continue using after a couple of days so I have no idea if it works. I couldn’t stand the taste and it is so messy.
I’m so thrilled that after taking Ab rx for about 3 months I was able to lower my thyroid medication from 60mg to 30mg because my lab showed improvement in my T3. Will continue to take and see what happens after few months.
For years I have struggled to find supplements that my body does not reject - quite literally. Dr Westin's products have been a wonderful find. Finally something I can take without fear of feeling bad and that can support my thyroid and my body.
Felt great, would recommend for thyroid issues, going to order again.