How Accurate Is Hair Sample Allergy Testing?

However, to be clear, these tests are still in their experimental phase and are therefore not yet clinically accurate. While they might be able to tell us what a hair sample shows, they can’t tell us if a certain food is causing a reaction. This is because the body can produce both the allergen in question and a response to that allergen. So, in other words, a test that only takes a hair sample does not show us the presence of the allergen itself. It can, however, tell us about the presence of the response, and therefore can be useful in cases where a blood sample might not be appropriate.

Can Hair Sample Testing Be Accurate?

Some people think that Hair sample testing is accurate and reliable but there is some controversy surrounding its accuracy. The skin is very complex and many different allergens are able to penetrate the skin. For instance, the skin naturally has oil glands and hair. Oil and hair could trap and contain allergens. Additionally, certain allergens, such as pollen, are airborne and could enter the body through the air. A test could also be affected by previous topical medications. More evidence is needed to determine if hair sample testing is accurate.

Why Should I Get Tested?

Before anyone will agree to get a hair sample tested, it is imperative to get tested. A hair sample can provide a type of insight into your lifestyle, such as the kinds of foods you eat or the substances you consume. In addition, hair contains certain chemicals that may reflect your current health and lifestyle. A hair sample can also tell you if you are allergic to certain products or whether you have a certain medical condition.

Testing for Food Allergies

For people who have a known history of food allergies, one of the most effective forms of testing is known as oral food challenge (OFC). This allows a health professional to expose a patient to a known food, to ensure that the patient is not allergic to that particular food. The process usually involves a patient being given a dose of a single food, which is then followed by a repeat dose of the food in question. It is usually noted whether or not the patient has any symptoms of a known food allergy. This can often be an invasive process, so it’s important that you speak to a professional when it comes to testing.

The Various Tests

The American Academy of Dermatology (AAD) lists the major causes of hair loss on its website. The following are the most common causes of hair loss:
Medications, such as birth control pills and antidepressants
Hormonal changes due to pregnancy, menopause, and other conditions
Alcohol and other drugs
Excessive heat, sun, and wind
Wearing hats, hoodies, or other clothing that restrict blood circulation

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Hair Sample Allergy Testing

An allergy test done on your hair may be inaccurate. How accurate is hair sample allergy testing?