Allergy & Intolerance Testing

Using hair or blood sample science

Understand Your Body

With a trusted worldwide health & wellbeing business

400,000 Tests Completed!

9,000 customers a month trust us to help them

Customer Satisfaction Promise

A track record of helping people worldwide for 10 years.

216 Doctors + Practitioners

Partners worldwide use our tests to help their patients

99.5% Customer Satisfaction

Support 24 hours a day, 5 days a week in any language

Allergy, Sensitivity & Intolerance Tests


Discover the causes of allergy, sensitivity or intolerance symptoms fast with one of our home-to-lab food intolerance and food allergy tests. For over 10 years we have developed market-leading health, intolerance and food allergy tests that have helped people all over the world.




Was $125.00
For 1 Person
  • Test up to 725 trigger items with our easy hair sample test. Four tests available.
  • 400 food items
    325 Non-food Items
  • Free exclusive 19 page guide
    6 week food diary
  • Nutritional Items
    Metals (Toxicity) Items
  • 100% Money Back Guarantee
  • 28-Day Follow Up


Was $245.00
For 4 People
  • Test up to 725 trigger items with our hair sample test for your whole family.
  • 400 food items
    325 Non-food Items
  • Free exclusive 19 page guide
    6 week food diary
  • Nutritional Items
    Metals (Toxicity) Items
  • 100% Money Back Guarantee
  • 28-Day Follow Up



For 1 Person
  • ELISA finger-prick blood IgG4 & IgE testing.
  • 30 Allergy Items (IgE)
    40 Sensitivity Items (IgG4)
  • Free exclusive 19 page guide
    6 week food diary
  • 21 Day Turnaround
  • No-reaction, No Charge
  • Nutritionist Referral


For 1 Person
  • ELISA finger-prick blood IgG4 & IGE testing.
  • 35 Allergy Items (IgE)
    75 Sensitivity Items (IgG4)
  • Free exclusive 19 page guide
    6 week food diary
  • 21 Day Turnaround
  • No-reaction, No Charge
  • Nutritionist Referral


Discover how your beloved pet reacts to certain food items and the possible cause of your allergy and intolerance symptoms in one easy to understand pet intolerance or allergy test.

  • 30 common items that often affect pets.
  • Easy to understand report detailing your pet’s allergies and intolerances.
  • Ideal for Dogs, Cats, horses and any pets with hair.
  • Identify your pet symptoms fast and improve wellbeing.

Why choose Test Your Intolerance?

Test Your Intolerance is part of the Worldwide Health & Wellness company, Healthy Stuff Online Ltd., head office in the UK. Our laboratories follow Good Laboratory Practice and our state-of-the-art allergy & intolerance laboratory is certified according to ISO 9001 and ISO 13485. We have been offering wellness services since 2008 and have continued to invest in the latest intolerance and allergy equipment and training to ensure we provide our customers with the best possible service. Our food allergy tests and intolerance tests enable you to learn and identify which foods you need to remove from your diet.

Trusted service. What our customers are saying.

I bought this test for my family after I got my results, it’s really helpful and means we have less of a worry at meal times now as we know what people need to not eat.

John E. Klein Via Google

I wanted an allergy test where I didn’t need to send in blood, and this one uses hair. The results came quickly and have really been a great help.

Caroline Lauren Via Google

I’ve got a few tests to try and see what was giving me headaches, but this one gave the best results and I could ask more questions on the livechat. Awesome.
Andrew Vallejos Via Google

Hospital recommended a test so I bought this one. They were happy with the results and it has allowed me to change my diet.

Steven Lloyd Via Google

Understand your health & your wellbeing

Receive your intolerance results straight to your email and start making positive changes to your body and health. Using our easy to use home-to-lab intolerance and allergy tests. We provide you with a comprehensive explanation of our intolerance and allergy findings and support you through your wellness journey with our 24hr, 5 day-a-week, customer care team.

Send us a sample of your hair for our bioresonance tests or a small blood sample for our IgE & IgG4 ELISA tests to determine your allergies and intolerances/sensitivities.

For over 10 years, Test Your Intolerance been helping people all over the world understand allergies, intolerances and more about their body with our tests.

Our customer promise. Service to you.

As a global leading health brand, we’re proud to make our transparent Five-Point Promise to each and every customer as well as offering you our No Quibble Guarantee.

 Chat live in any language you prefer; 24 hours a day. (Monday – Friday).
 Receive accurate results within 10 days of arriving at our testing labs.
 Easy to understand, expert advice is available online.
 We promise to resolve any complaints fully within just 7 days.
 100% money back on our hair tests and no reaction, no charge for our blood tests.

Discover the benefits of our tests.



10 years


A global wellness business


ISO 9001:2015


24 hour / 5 days support


Supported By
Nutritional Therapists


9,000 people per month choose us

NEW! 19-page downloadable intolerance guide with EVERY test purchased.

Send us your sample locally!

Your hair sample(s) can be sent to your local sorting office keeping postage costs to a minimum, or you can pay a little more and send it straight us in the UK for quicker results…

Please note local charges apply.

Our customer promise gives you confidence if you’re not satisfied! T&C’s apply.

Join our worldwide partner programme!

Be part of a network of partner practitioners who offer our tests to their clients.

You’ll receive full support, your own account executive and a range of services designed to help you and your business succeed.

Interested? Sign up today and learn how much you could be earning.