About Sensitivity Check - Sensitivity Check - Food sensitivity tests

About Sensitivity Check

Discover more about us and our tests

Our Values and Mission

At Sensitivity Check, we’re very proud of the people who’ve chosen our test and are living healthier, happier lives. That’s why we believe in transparency of our products, service and satisfaction guarantee.

Our labs offer tests to countries all over the world and supply a variety of tests for different needs. With a small team of experts working 24 hours a day to offer a great service that ensures you don’t have to wait to be healthy.

Hair analysis has been approved for testing and accuracy worldwide and offers a non-invasive service that your children and parents could benefit from too.

About the company

This site is operated by Global Science Technology Limited

We are registered in England and Wales under company number 10219531 and with our registered office

Sensitivity Check,
Healthy Stuff,
Suite 8091,
PO Box 13240 Johnsonville,
Wellington 6440,
New Zealand

This is also our main trading address.

You may contact us at the above mentioned address and through the following means:

Chat To Us: Click Here

Our VAT number is GB 248 975 546.

The European Commission provides a platform for online dispute resolutions (ODR) which can be accessed at http://ec.europa.eu/consumers/odr/. We are ready to participate in extra-judicial dispute settlement proceedings before a consumer dispute resolution body.

How we support our customers

Items Tested In Each Test

Lab Tests Per Week

Results In Working Days


Satisfaction Guarantee

Our Scientific Expertise

Dr. Kristen Poe, PhD

Dr. Kristen Poe, PhD

Functional Medicine practitioner and Naprapathic doctor

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

Read more about Dr. Poe

Joseph Bentley

Joseph Bentley

Laboratory Manager

Joseph, our Laboratory Manager, brings expertise in Biological Sciences and extensive experience from working at The Rosalind Franklin Laboratory, a flagship COVID testing site. With a focus on efficiency, Joseph collaborates closely with the Laboratory Manager, driving research and implementing improvements at Sensitivity Check.

Kate Knowler

Kate Knowler

Functional Medicine practitioner and Naprapathic doctor

Kate Knowler, a respected nutritionist, phlebotomist, and author, passionately educates and empowers individuals to make informed choices about their well-being. With expertise in holistic health, she offers evidence-based nutrition plans and demystifies blood testing through her acclaimed "Blood Labs" books. As a dynamic speaker and online influencer, Kate inspires a nourishing lifestyle for optimal health.

Read more about Kate Knowler

Dr. Joseph Nightingale, MBBS, MSc

Dr. Joseph Nightingale, MBBS, MSc

Health and Science Copywriter and Qualified Doctor

Dr. Joseph Nightingale, MBBS, MSc, is a qualified medical doctor, With a passion for clear communication. Dr. Nightingale's expertise spans various industries, and he is also the editor of Big Picture, an online periodical addressing environmental and climatological issues.

Read more about Dr. Nightingale

Nida Ali

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.

Customer feedback and reviews

Fast and informative results. My family have used this test to change our eating habits.



I was surprised at the level of detail and the number of things the test was correct at identifying.



The customer service team were really helpful and gave me advice on understanding the report.



After a number of different tests and consultations, I finally have some answers.



Three simple steps closer to improved health

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Send us your hair sample(s) and submission form

3steps report

Receive a full report of your sensitivities and intolerances

Start your journey to wellness now

Satisfaction Guaranteed!

About Our Sensitivity Test Products

It’s important to check your sensitivities so that you know which foods are causing you serious problems. Our quick procedure starts the moment you make your purchase as we send you the forms you need to fill out. Each instruction is carefully explained, from how to take a hair sample, to how it needs to be packaged (a normal envelope is fine) and then you return it to us in a stamped addressed envelope.

We only take a very small sample of your hair as that gives us the tools we need to test your intolerances. The test results are then produced in an easy to understand form which is split into the different categories of food, non-food, nutrition and metals, depending on your results. We test for an 85% reaction rate as this is the level which will cause a symptom in your body.

Included in your report is an easy to understand introduction written by our nutritionist team which will help you get the most from your test. We also tell you more about each item including where it is found, and a further description so that you can fully remove it from your diet.

We test hair as it’s less invasive than a blood sample, it’s more accurate when sending samples through the post, and allows us to give you fast results.

Stop the symptoms – fast!

We test common food and non-food sensitivity triggers

About The Satisfaction Guarantee

At Sensitivity Check, we believe in transparency which is why we’re proud of our satisfaction guarantee.

We’re so proud of our test, service and team that we have a satisfaction guarantee; if your results don’t change your health, we’ll give you the money back.

We’re the only one to have a customer service team working 24 hours a day to answer your queries so that you can rest assured, you’re in good hands with Sensitivity Check.

A step to better wellbeing

Understand more about the triggers of intolerance symptoms