Allergy Test USA | Food Allergy & Intolerance Tests

Free shipping

Fast results

24/7 support

Secure process

Globally recognized

9,000+ people monthly

Allergy & Intolerance Testing, Sensitivity Tests & Health Checks

Find a happier, healthier you, today. For over 14 years we’ve helped over 9,000 customers per month by offering an exclusive range of at-home tests. Our expert team help you easily identify the causes of symptoms supported by a 24/7 customer care team.

Find a happier, healthier you, today. For over 14 years we’ve helped over 9,000 customers per month by offering an exclusive range of at-home tests.

Our expert team help you easily identify the causes of symptoms supported by a 24/7 customer care team.

Trustpilot

About Us

America's Number 1 Allergy & Intolerance Company

Improve your health with our reliable tests for allergies, food intolerances, sensitivities, and overall wellness.

Our accredited laboratories and dedicated scientific team are committed to innovation and quality assurance. We collaborate with certified labs and test manufacturers to offer you the finest health insights from the comfort of your home.

For more than 14 years, we have been a global leader, delivering valuable answers to our clients at an unbeatable price.

Very Well Image

Our Allergy & Intolerance tests have been voted the best for 'Mystery Allergies’ by Verywell Health 2023 & 2024!

Very Well Image

Our Allergy & Intolerance tests have been voted the best for 'Mystery Allergies’ by Verywell Health 2023 & 2024!

Best sellers

sensitivity-test-kit

SALE

Sensitivity Test

  • 500 sensitivities tested

    • (Food, drink & environment)

  • Hair strand sample

$37.50

$106.00

You Save: $68.50 (65%)

View
sensitivity-test-kit

Best Seller

Sensitivity Test Plus

  • 975 sensitivities tested

    • (Food, drink & environment)

  • Hair strand sample

$47.00

$135.00

You Save: $88 (65%)

View
allergyintolerance-test-kit

FOOD & INHALANTS

Allergy Test

  • 38 allergies tested

    • (Food, drink & environment)

  • Blood spot sample

$129.00

$173.00

You Save: $44 (25%)

View
allergyintoleranceplus-test-kit

Most Comprehensive

Allergy & Intolerance Test Plus

  • 38 allergies tested
  • 79 intolerances tested
  • Blood spot sample

$205.00

$339.00

You Save: $134 (40%)

View
iron-test-kit

FAST RESULTS

Iron Deficiency Test

  • Rapid indicator of Ferritin levels
  • Blood spot sample
  • Delivered free within 1-3 days

$45.00

$59.00

You Save: $14 (24%)

View
liver-test-kit

Sale

Liver Function Test

  • 10 key liver functions tested
  • Urine sample

$39.00

$55.00

You Save: $16 (29%)

View

Why us

9,000+ customers per month

Quality in-house laboratories

Endorsed by practitioners

Fast and accurate results

Features

ISO accredited labs

Results from our labs in 5-7 days

Faster alternative to Doctors

SAVE with couples & family options

More Info

Sensitivity testing science explained

How to take a hair sample

Allergy & intolerance science

How to take a blood sample

100 percent money-back guarantee

Purchase your test risk-free!

Sensitivity Tests: If you’re not satisfied with the results or improvements following an elimination diet we offer a 100% money-back guarantee.

Allergy & Intolerance Tests: If your blood results don’t display a reaction, we will refund your money helping you continue your health journey at no extra cost.

Read our promise.

Receive 24/7 support, chat with us today!

Learn more about us and our team!

Order process

cart-image

Step 1

Order the best test for you securely online

email-image

Step 2

Receive instructions, test & download the app.

microscope-image

Step 3

Follow the instructions to take your sample.

results-image

Step 4

Receive your results and make positive changes.

Our Iron Deficiency Test

Our Iron Deficiency Test has been featured as the best and most affordable at-home test by healthline. Read the full article here.

Why choose us?

Easy and quick at-home testing

Suffering from discomfort or undiagnosed symptoms happens to most of us and can be something you’ve lived with for years.

Our wide range of allergy, food intolerance, sensitivity and health tests help you understand potential triggers and key biomarkers from the comfort of your own home.

Over 9000 people every month trust us to provide fast and accurate results. We support you through your wellness journey with our 24hr, seven-day-a-week expert care team. Take control of your health today!

Complimentary Medical Association logo

We are proud members of the Complementary Medical Association and the International Practitioners of Holistic Medicine.

International Practitioners of Holistic Medicine logo

Our Scientific Expertise

Dr. Kristen Poe, our Functional Medicine practitioner and Naprapathic doctor

Dr. Kristen Poe, PhD

Functional Medicine practitioner and Naprapathic doctor

Joining the advisory board in 2022, Dr. Poe has a Bachelor’s degree in Psychology, a PhD and Post-Graduate diploma in Alternative Medicine and a Board Certification in Holistic Nutrition from NANP.

Read more about Kristen

Maria Griffiths, our registered Nutritional Practitioner with over 20 years of experience.

Maria Griffiths

Registered Nutrition Practitioner

Listed internationally as a Biomedical Practitioner, Maria is a BANT-registered nutritional practitioner and graduated from the Institute For Optimum Nutrition in 1998. She offers additional nutritional support.

An image of Dr. Joseph Nightingale, our Health and Science Copywriter and Qualified Doctor

Dr. Joseph Nightingale, MBBS, MSc

Health and Science Copywriter and Qualified Doctor

Dr. Joseph Nightingale, MBBS, MSc, is a qualified medical doctor, and copywriter, specialising in creating clear content for organisations. With a master's degree in Biodiversity, he’s also done notable research on climatological impact.

Read more about Dr. Nightingale

Nida, LifeLab's regulatory expert

Nida Ali

Regulatory Advisor and PRRC

Qualified lawyer Nida Ali has 6 years’ experience in clinical evaluation reports. She is a Person Responsible for Regulatory Compliance (PRRC), ensuring our company adheres to legal requirements for health testing.

Read more about Nida

Joseph, one of Allergy Test's professional lab team

Joseph Bentley

Laboratory Manager

Joseph joined Test Your Intolerance in March 2023 as our Laboratory Manager. With a degree in Biological Sciences from Aston University, he works closely with our Compliance Director, optimising operations and researching advancements.

Kate Knowler, a member of our advisory board

Kate Knowler

Registered Nutritional Therapist

Kate Knowler, is a respected nutritionist, phlebotomist, and author. With expertise in holistic health, she offers evidence-based nutrition plans and demystifies blood testing through her acclaimed "Blood Labs" books.

Read more about Kate

Our Scientific Expertise

the Farr Institute logo

Our tests are endorsed by Verywell Health, the Farr institute are an accredited ISO9001 Allergy & Intolerance testing business

ISO logo

Our tests are endorsed by Verywell Health, the Farr institute are an accredited ISO9001 Allergy & Intolerance testing business

We are proud members of the Complementary Medical Association and the International Practitioners of Holistic Medicine.

Our customer promise

process-image

Results within 7 working days of your sample arriving at our labs

live-chat-image

LiveChat with us in any language, 24 hours, 7 days a week

money-image

100% money-back guarantee with sensitivity testing

results-image

Expert advice in your bespoke results.

Contact Us Image

We’re here 24 hours a day, 7 days a week to support you on your health and wellness journey in any language. Learn more about us and our tests or chat with us.

100% money-back guarantee on all of our sensitivity testing products!

Purchase in complete security, read our customer promise!

Read reviews from our

1,000,000+ customers

review-image
quote-image

Good validity!

I am pleased with the blood results as it highlighted allergies that I knew I already had since a young child (increasing the validity) and also new food allergies that I did not know I had.

I am looking forward to eliminating these foods from my diet!

Hannah F

review-image
quote-image

Foods eliminated

I have eliminated the foods that you recommended and have been thrilled to add back some foods that I previously thought were problems for me.

I feel so much better! I have recommended your testing to many people. Thank you!

Riva V

review-image
quote-image

Happy mum

My mother has been having some stomach issues and wanted to find out exactly what was wrong, the doctors couldn’t tell her.

Now my mom can make those subtle food changes and have a much happier stomach and not be questioning everything she eats!

Helena S

quote-image

So easy to do!

The test was so easy to do from reading the instructions, quick and easy delivery, great customer service!

Great way of testing if you are like me and frightened of blood tests!

Nadia

Our Prostate Health Test

Our Prostate Health Test has been featured as the best and most affordable at-home test by healthline. Read the full article here.

example-results

Receive results easily

Follow the status of your order, receive your results and store them directly in our Healthy Stuff app.

app-store-button google-play-button
Watch promo video >

Live customer survey results

survey-image-1

98

%

Would recommend this service to others

survey-image-2

95

%

Were impressed with their results

survey-image-3

97

%

Are happy with the speed of service

survey-image-4

73

%

Say their symptoms affect their daily life

*These statistics are pulled from our online customer survey Last updated 05/10/2024.

farr-Institute-image

Farr Institute recommended. “No-risk test for food sensitivity – money-back guarantee means you have nothing to lose”. Read more here.

Farr Institute recommended. “No-risk test for food sensitivity."

"Money-back guarantee means you have nothing to lose”. Read more here.

Frequently asked questions

Allergy & Intolerance Testing

Allergies

An allergy is an immune system response. It is caused when the body mistakes a protein for a harmful substance and creates a defense system (antibodies) to fight it.

Allergic reactions are immediate reactions, and they can be life-threatening in some cases.

Intolerances

An intolerance is a non-immune system response. Symptoms of intolerance usually occur several hours after exposure to a trigger, whereas an allergy can result in an immediate reaction.

Often people need to be exposed to more significant amounts of food types to trigger an intolerance, unlike an allergy. Food intolerance is not life-threatening.

Find out more about the differences between allergies and intolerances.

Allergy testing:

We have IgE ELISA food and non-food allergy testing. IgE antibodies are involved in Type I allergies and can cause rapid type immune reactions, with symptoms occurring within a few minutes up to two hours after eating a specific food.

Read more about IgE testing science.

View Allergy test

Intolerance testing:

We have Intolerance (IgG4) ELISA testing because we are investigating delayed symptoms that could be associated with food intolerances.

Read more about IgG4 testing science.

View Intolerance test

Allergy & Intolerance testing:

We also have a range of combinations for the ultimate allergy & intolerance test.

View Allergy & Intolerance test

View Allergy & Intolerance test plus

1. Receive your testing kit in the post.

2. Clean your finger and use the finger prick to take your sample

3. Fill the blood spot card with your sample.

4. Freepost your sample to our labs for testing.

Read more about how to take your blood sample.

We provide you with easy-to-use lancets designed to give you a tiny prick on the finger to start the blood flow.

It’s precisely the same as a pinprick and, if administered correctly following our provided instructions and tips, will not hurt.

While we allow children from the age of 2 and above for blood allergy and intolerance testing.

There is evidence that allergies are not fully developed until the age of 7. Please check with a medical professional before purchasing.

There are a few types of medication that may stop your test from being accurate.

Immune suppressant medications can also affect the results of the testing, we advise that you check with our team prior to testing regarding medications.

Antihistamines have been shown to affect results; we advise stopping antihistamine use for 3-5 days before taking your sample.

However, we would recommend seeking advice from a medical professional before changing any medication.

Sensitivities include all those reactions to food and non-food items that can activate a non-immune mediated response.

Instead they can be caused by not having the right enzymes you need to digest certain foods or a reaction to food additives or preservatives.

Find out more about food sensitivities.

The safest way to take a hair sample is to ask someone else to help you. Using your forefinger and thumb, gather 3 or 4 strands and slightly twist the hair together.

This will make cutting the hair sample much more accessible and keep all the hair strand in the same direction.

Try to cut the hair sample as close to the scalp as possible, using one cut. If you do not have anyone to help you, using a mirror may help ensure you avoid injury.

Find out more about how to take your hair sample.

Once you have purchased our test you will receive an email to submit your details digitally online.

We try to keep our costs as low as possible (by not sending out physical hair testing kits) so that we can offer such a comprehensive test at the price offered.

Blood kits are sent out to the address provided at the time of purchase, with tracked Royal Mail post.

The hair sample does not have to be from the head, we can test hair from any part of the body, including leg, arm or chest.

The test is completed on the hair sample composition so that no hair processing will not affect the result. However, if you would like, you can provide hair from elsewhere on the body.

Children can complete a hair sensitivity test once they reach five years old due to their immune system changes and the importance of eating a varied diet.

Infants have not yet built up their tolerance levels to items, highlighting false positives in their test results.

However, it is up to the parents or guardians if they would still like to proceed knowing this.

If you’ve purchased one of the sensitivity tests, you will have to pay the postage cost back to the processing centre, which then sends the sample to the UK.

We try to keep our costs as low as possible (by not sending out physical hair testing kits) so that we can offer such a comprehensive test at the price offered.

Please ensure the correct postage amount has been paid as we are not liable for any extra charges.

Although the products can vary for different regions, we currently have an extensive range on offer. We have liver function testing, vitamin D at-home blood testing, prostate, persistent inflammation, thyroid, menopause testing, and urine kidney testing. All are available at-home, with immediate results.

View our health tests.

No, all of our health tests come with complete instructions so, you can complete the tests at home quickly and easily.

This means you can get a faster result with minimal fuss! Why not complete regular testing to understand your health entirely.

Yes, all the health tests we offer on our site are scientifically validated, easy-to-use, and delivered to your front door.

We recommend to our clients to complete health tests once or twice a year, as they are the fastest way to get easy-to-understand results that you can act on.

Completing them frequently means you always understand how your health is doing and can amend your diet and lifestyle if things are not improving.

Ordering a test is simple if you follow our four simple steps.

1. Order the best test for you securely online.

2. Receive instructions and your test kit through email or post (depending on the product chosen).

3. Follow the instructions to take your sample.

4. Receive your results and make positive changes. It’s that simple.

If you have returned your test to us, and the 5-7 working days have passed from us receiving your sample, which is confirmed by email, please use the test finder to track where it is.

We have strict lab protocols to ensure that we always return tests within this time frame, so maybe it’s gone to your junk mail, or we have reached out with an issue.

We are always available on 24/7 LiveChat to resend these tests to you or resolve any problems.

We pride ourselves on our 99.6% customer satisfaction rating.

However, if you are not satisfied with any of our services, please contact us directly via email or LiveChat as soon as possible to assist you in resolving any issues.

Both the blood and hair samples are tested at our center based in Derby, UK. Once the hair sample has been received at our testing facility, you will receive your results within 5-7 working days.

Tests are completed in our laboratory facilities which follow Good Laboratory Practice. These are a set of principles intended to ensure the quality and integrity of non-clinical laboratory studies such as ours.

Yes, if you have chosen one of our hair or blood allergy, intolerance, or sensitivity tests, you will get a notification when your results are ready.

Plus, you can record your health test results within the app to keep track of your health journey.

View our app.

at-logo-shop-now

Buy a test today!

Allergy tests, intolerance tests, sensitivity tests & health tests.