Food sensitivity test from a simple hair sample

Our food sensitivity test, from the US' most trusted sensitivity test provider, checks up to 1,600 food and non-food items using a simple, non-invasive at-home hair sample. Results arrive by email in 5–7 working days once your sample is received, backed by our 30-day 100% money-back guarantee on hair sensitivity tests.

with nearly 7,000 five-star reviews across our brands

Get Your Results

Trusted since 2008

30-day 100% money-back guarantee

Over one million tests sold across our family of brands

Test My Food Sensitivity test kits with fruits, vegetables, and nuts on a purple background

Trusted since 2008

30-day 100% money-back guarantee

Over one million tests sold across our family of brands

Ready to start your health journey today?

Over one million tests sold across our family of brands since 2008. Discover potential food and environmental sensitivities and take the first step towards feeling like yourself again.

What people are saying about our tests

Over 7,000 people have given us 5-star reviews. See what some of them have to say.

Why choose our tests?

Non-invasive testing

Our tests use non-invasive sensitivity (Bioresonance) testing, using a small hair sample to test for 1600 triggers.

Fast results

Your personalised report arrives by email, with results in 5–7 working days once your sample is received.

Cost effective

Rather than needing to spend up to $250+ for a traditional blood test, our sensitivity tests are significantly cheaper.

Stop the symptoms

After receiving your results you’ll know what triggers to avoid, and you'll be able to start changing your diet and lifestyle.

Woman holding a 'Ultimate Sensitivity Test' box outdoors with greenery in the background

Why Buy From Us? Because You Simply Cannot Lose.

Over one million tests sold across our family of brands since 2008, and one promise that has never changed.

Every hair sensitivity test comes with our 30-day 100% money-back guarantee, so you can discover potential food and environmental sensitivities with complete confidence.

You can read the full details in our Returns & Refunds Policy.

30 days. No quibble. No small print. No risk.

Intolerances are the most common chronic illness in the world

Start your journey to better health

Food sensitivities can be the cause of a variety of health issues including headaches, irritable bowel syndrome and fatigue and even a variety of undiscovered symptoms. Our comprehensive sensitivity tests can quickly help you understand more about possible trigger items.

We have helped people with:

Bloating
Migraines
Headaches
Coughs
Eczema
Fatigue
Hives
Insomnia
Weight gain
IBS
Acid Reflux
Indigestion

And many more symptoms.

About Test My Food Sensitivity

What makes us different from other sensitivity test providers

Trusted since 2008

Our team has been at the forefront of at-home hair-based sensitivity testing since 2008, starting with Test Your Intolerance and Sensitivity Check in the UK, and expanding globally under brands like Allergy Test.

Money-back guarantee

We believe in honesty and transparency, which is why we offer a 30-day 100% money-back guarantee on hair sensitivity tests. Discover potential food and environmental sensitivities with confidence.

Global company

We've served customers in over 50 countries worldwide through our family of brands, delivering sensitivity tests to diverse markets.

Over one million tests sold

Over one million tests sold across our family of brands since 2008, so you’re in experienced hands.

Choose Your Test

Who we are

Test Your Intolerance was born in 2008 in Ashby de la Zouch, UK, with a simple aim: offer quality intolerance tests at affordable prices.

Our growth has been phenomenal. As demand grew across the globe, we became the first company in our industry to offer a 100% money-back guarantee.

Over the years we've launched specialist brands including Allergy Test and the million+ selling Sensitivity Check to serve different markets.

In 2025, we brought everything under one banner - but we're still the same great business providing quality, trusted tests at affordable prices, backed by our 100% money-back guarantee.

More About Us

Hands of people stacked together in unity

Part of the Test My Food Sensitivity family

Our dedicated customer support team is here to help.

If you have any questions about your test, or simply not sure what test to choose, our team is happy to help. You can get in touch with them here.

How It Works

Beat your food sensitivities in three simple stages!

We’ll email you as soon as your hair sample arrives. Our testing team then gets to work, with results in 5–7 working days once your sample is received, sent straight to your inbox.

Step 1

Choose your test and place your order securely online.

Step 2

Complete the online submission and send your sample to our facilities.

Step 3

Results in 5–7 working days once your sample is received. Your results arrive by email.

Still unsure?

We're happy to answer any questions you might have about our tests and testing process. You can speak with our customer service here.

Order Your Test Now

Your purchase includes a full digital sensitivity report and general wellness guidance based on a small hair sample you send to us.

You send us a small hair sample.

We analyse it using non-medical bioresonance technology to identify potential energetic responses to a wide range of foods and environmental items.

After purchase, you’ll receive instructions by email.

You simply cut a small sample and mail it to the address provided.

Your purchase includes a full digital sensitivity report and general wellness guidance based on a small hair sample you send to us.

You send us a small hair sample.

We analyse it using non-medical bioresonance technology to identify potential energetic responses to a wide range of foods and environmental items.

After purchase, you’ll receive instructions by email.

You simply cut a small sample and mail it to the address provided.

Hear from more happy customers

Join thousands of satisfied customers who've given us nearly 7,000 five-star reviews across our brands.

Woman holding an Optimum Sensitivity Test package against a green hedge background

Naomi

Bloated stomach

— Really insightful and interesting. I have learned a lot and cut certain things down or out of my diet and already feel less bloated!

Man in a forest holding an Optimum Sensitivity Test package

Jon B.

Eczema, skin conditions

— Since leaving several things out of my diet my skin has improved a lot.

Sandra M.

Bloated stomach

— I always have no energy and I always feel ill now I know but this could be the reason why I would never have known if I didn’t use test your intolerance thank you so much.

Food sensitivity test from a simple hair sample

What people are saying about our tests

Customers are saying

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