Frequently Asked Questions (FAQs)

We have compiled the following questions most frequently asked with responses for your convenience. If you still require further information, please contact our dedicated customer service team here.

I’m waiting for my Home Test Kit to arrive, how long will it take?

There is no physical testing kit sent to you. Once you’ve completed your order, please follow the on-screen or emailed instructions and send us your hair sample to the address provided.

You do not need special packaging to send-in your hair sample and test submission form. 

Just place your hair sample in a secure, small sealable bag with a completed test submission form and ensure the correct postage is covered.  

Send to:

US Intolerance Testing LLC
8480 Baltimore National Pike
STE – 3210 #212
Ellicott City, MD, 21043

Please note: we cannot be responsible for undercharged packages. 

You should receive your results within five working days from receiving your hair sample at the laboratory.

If you haven’t received a confirmation email, please check your email spam or junk folder. 

I have no printer, and cannot send a test submission form. What next?

No problem.

Please include handwritten order details including:

  • First & Last Name
  • Order Number
  • Order Date

In addition to order details, please place your hair sample in a secure, small, and sealable bag. 

Please send to:

US Intolerance Testing LLC
8480 Baltimore National Pike
STE – 3210 #212
Ellicott City, MD, 21043

Please ensure the correct postage is covered. We cannot be responsible for undercharged packages. 

You should receive your results within five working days from receiving your hair sample at the laboratory.

If you haven’t received a confirmation email, please check your email spam or junk folder.

What’s included in my test?

Your intolerance test results include all items that have shown a score of 85% and higher. After completing thousands of tests, we now know that 85% is the turning point where symptoms begin to develop into an allergy/intolerance.

Our premium test includes complementary nutritional and metal sensitivity tests.

What should I do with my test results?

To increase your quality of life you should, over 4–6 weeks, completely exclude the items your body is intolerant to. During this time your body will get the peace it needs to repair itself. After this period you can either take a new test to be sure your body is “ready” or, gradually and in small increments reintroduce the items to see if there is any reaction. As for the nutrients you may be missing, we recommend that you follow our dietary guidelines and make sure that your body gets the nutrients it needs to stay healthy and strong.

How do your tests compare to blood samples?

In addition to being less invasive and significantly cheaper, your last meal may affect the results of a blood sample, whereas a hair sample has the information stored for a longer period and reflects a wider time frame.

How do I take a hair sample?

The safest way to take a hair sample is by asking someone to help you. First, brush your hair upwards to get easy access to the hair roots and the back of your head. Hold a small amount of hair between your finger and thumb, and cut the hair as close to the scalp as possible (without pulling any blood). If you do not have someone who can help you, please use a mirror to avoid accidentally hurting yourself.

How do I submit my hair sample?

When your order is completed, instructions will be sent to your email along with your receipt (i.e. we will not send test kits). Simply take 4–5 hair strands from your scalp place in a small plastic bag then put in an envelope along with a completed form (instructions are emailed post order).

My hair is dyed. Will this affect the results?

No, we test the composition of the hair sample, so the hair dye will not affect your test results.

How much hair do I need to submit?

Only a small amount; 5 individual strands. We don’t require clumps of hair.

What’s the difference between allergy, hypersensitivity, and intolerance?

There is quite a big difference between being allergic, intolerant, or hypersensitive to a substance however, the symptoms often resemble each other. For those who get ill from their diet, it may feel equally bad. The devil is known by many names, some might say. Our test results will shed a light on what intolerances you might have, in other words, which ingredients to avoid. An intolerance may pass after a while, while an allergy lasts for life.

Can children take the test?

Unfortunately, we don’t recommend the test for anyone below the age of 6. Younger children have not yet built up their tolerance levels, and this can give false results in the lab.

Can animals/pets take the test?

Yes. Pets can suffer from similar intolerances to humans. We offer a Pet Intolerance Test for cats and dogs with 60 checks for common pet food brands, in addition to environmental factors.

How do I purchase an intolerance test from you?

Tests can be easily ordered on our website. Should you have further questions, please don’t hesitate to email us.

How do I find my order number?

Your order number will be clearly stated on your order confirmation email that you will have received when you made the initial purchase.

Contact Us

US Food Intolerance

Send all enquiries to:

US Intolerance Testing LLC
8480 Baltimore National Pike
STE – 3210 #212
Ellicott City, MD, 21043

E. sales@usfoodintolerance.com

Business Hours

9am to 5pm (EST), Monday to Friday.

We aim to respond within two hours of a working day.

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