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ALEX3 Allergy Test – Test 300 Allergens From a Small Blood Sample at Home

ALEX3 Allergy Test UK | Home Allergy Test Kit for 300 Allergens Test for 300 allergens at home with the ALEX3 Allergy Test. Includes food, pollen, dust, animal, and venom allergens. Free UK delivery. Fast, lab-accurate results. Download an example of an ALEX 3 Test Report

£294.99

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  • Home sample collection kit included
  • Clear step-by-step instructions
  • Discreet delivery
  • Laboratory analysis
  • Digital results within 2–5 working days

ALEX3 Allergy Test – Comprehensive Home Allergy Blood Test

Test 300 Allergens From a Small Blood Sample at Home

The ALEX3 Allergy Test is a thorough laboratory blood test which determines the level of specific IgE antibodies and total IgE in relation to a wide variety of allergens such as food, pollen, animals, dust mites, mould, insects, venom and others.
The ALEX3 test produces a comprehensive laboratory report covering up to 300 allergen targets, based on a small blood sample obtained by a finger-prick at home.
Useful information can be obtained from the test when looking into possible food or environmental allergies, such as symptoms involving sneezing, rhinitis, itchy skin, hives and reactions that are suspected to be related to food.
For the collection of the sample at home – laboratory analysis. The blood sample is sent back to the laboratory for professional IgE testing. The test on its own does not result in an allergy diagnosis.

Key Features

  • ALEX3 Allergy Explorer technology
  • Tests up to 300 allergen targets
  • Measures specific IgE and total IgE
  • Covers food and environmental allergens
  • Small finger-prick blood sample
  • Convenient at-home sample collection
  • Professional laboratory analysis
  • Secure digital results
  • Suitable for adults and children, subject to sample requirements

What does the ALEX3 allergy test consist of?

ALEX3 is a blood test which is multiplex and is intended for the measurement of IgE sensitisation to a wide variety of allergen extracts and molecular allergen components.
A test which looks at one allergen at a time is different from a multiplex allergy test since the latter is able to examine a number of allergen targets using only one sample.
The ALEX3 panel includes allergens from categories such as:
  • Foods
  • Grass, tree and weed pollens
  • House dust mites
  • Animal dander and epithelia
  • Moulds and microorganisms
  • Insects and venoms
  • Latex
  • Other occupational and environmental allergens
The test determines both the presence of specific IgE antibodies to each individual allergen and the total amount of IgE.

What Allergens Does ALEX3 Test For?

The ALEX3 panel covers a broad range of allergen sources, including:

🌿 Pollen Allergens

  • Grass pollens
  • Tree pollens
  • Weed pollens

🏠 Environmental Allergens

  • House dust mites
  • Animal dander and epithelia
  • Moulds
  • Other environmental allergens

🐝 Insect & Venom Allergens

The allergens from insects and venom.

🌾 Food Allergens

The panel includes selected allergens from:
  • Fruits
  • Vegetables
  • Grains
  • Legumes
  • Nuts
  • Seeds
  • Spices
  • Milk
  • Egg
  • Seafood
  • Meat
The panel also contains certain molecular components, for example Alpha-Gal, provided that this is included in the validated test panel.
It should be confirmed against the current ALEX3 panel offered by the laboratory what the exact allergens are before buying, since the testing panels and reporting configurations can differ.

What does the ALEX3 allergy test determine?

The test measures two main types of IgE information:

Specific IgE

Specific IgE testing is used for detecting the IgE antibodies linked to specific allergen targets.
The fact that a specific IgE reaction is detected shows that the individual is sensitised to that allergen. However, sensitisation does not necessarily mean that exposure will lead to clinical allergy symptoms.

Total IgE

The level of immunoglobulin E is measured by means of a test that looks at the total amount in the blood.
While an elevated level of total IgE is found in individuals with allergic conditions it may also be caused by other factors therefore total IgE should not be used alone as a means of diagnosing an allergy.

What’s the difference between sensitisation and allergy?

It is necessary to keep this distinction in mind when one is interpreting a blood test for allergies.
The presence of specific IgE antibodies indicates that a person is sensitised, which means that IgE antibodies against the allergen in question have been found.
The fact is that being sensitised doesn’t necessarily mean that you do have a clinically significant allergy.
Whether an allergen is actually responsible for symptoms depends on factors including:
  • Your symptoms
  • Your medical history
  • Your exposure to the allergen
  • The level and pattern of specific IgE
  • Other clinical information
You should therefore consult a qualified healthcare professional when making up your mind about diagnosis, diet or treatment.

Who is eligible to have an ALEX3 allergy blood test?

The test may be useful when investigating possible allergic triggers associated with symptoms such as:
  • Sneezing
  • Runny or blocked nose
  • Itchy or watery eyes
  • Hives or recurrent skin reactions
  • Itching
  • Suspected food-related reactions
  • Reactions after exposure to animals
  • Seasonal symptoms
  • Symptoms associated with pollen exposure
  • Suspected environmental allergies
It could also be useful in cases where there are several possible allergens and when a more comprehensive assessment is clinically appropriate.

ALEX3 Allergy Test for Food Allergies

The food allergens included in ALEX3 are varied and include a wide range.
Testing can yield information regarding IgE sensitisation to the foods that are included in the panel.
That does not mean that you have to remove that food from your diet just because you have a positive result for food-specific IgE.
Food restriction that is not necessary may have nutritional effects, especially in children. Before introducing major changes to your diet, it is important to talk with your general practitioner, a registered dietitian or an allergy specialist about any significant food allergies.

ALEX3 Allergy Test for Environmental Allergies

The test also includes selected environmental allergens such as pollen, house dust mites, moulds and animal allergens.
This may be useful when investigating symptoms such as:
  • Seasonal rhinitis
  • Persistent sneezing
  • Itchy or watery eyes
  • Nasal congestion
  • Symptoms associated with pets
  • Suspected house dust mite sensitivity
  • Possible mould-related allergic symptoms
The results can be used to detect sensitisation patterns which may be related to your symptoms.

What is contained in the ALEX3 Home Allergy Test Kit?

The kit that you receive at home has all the materials you need to collect and return your blood sample.
Depending on the supplied kit, this may include:
  • Sterile finger-prick lancet
  • Blood collection tube
  • Alcohol wipe
  • Plaster
  • Sample collection instructions
  • Secure sample packaging
  • Return packaging
  • Sample return instructions
The sample is then taken to the laboratory for ALEX3 IgE analysis.

How the ALEX3 At-Home Allergy Test Works

1. Order Online

Get the ALEX3 allergy test and obtain your collection kit.

2. Collect Your Sample

Take the instructions given to you in order to obtain your finger-prick blood sample.

3. Return Your Sample

Pack the sample securely and send it back to the laboratory by following the return instructions provided.

4. Laboratory Analysis

The sample is tested using the ALEX3 method to determine both the specific IgE and the total IgE.

5. Receive Your Results

You are given your results in the form of a secure digital laboratory report.
Turnaround: 3-5 working days

Understanding Your ALEX3 Results

The report will include the results for the allergen targets which are in the test panel.
The results can be shown using specific IgE concentrations and/or classification categories, according to the format in which the laboratory provides them.
The higher the specific IgE level, the greater the degree of sensitisation, but the result by itself cannot show how severe an allergic reaction might be or whether or not symptoms will occur upon exposure.

Important

The level of IgE should not be regarded as an indication of the severity of an allergy.
A qualified healthcare professional should take your results together with your symptoms and medical history into account.

What is the meaning of Class 3 on an ALEX3 allergy test?

A result in the Class 3 category indicates a certain level of specific IgE sensitisation as defined by the laboratory’s reporting scale.
It does not have to be regarded as proof of a clinical allergy.
The importance of a result is going to depend on the allergen, the symptoms you have, your history of exposure and all the other medical information.
If you get a major or unexpected result, then you should discuss it with your general practitioner or with an allergy specialist who is properly qualified.

ALEX3 vs ALEX2

ALEX3 belongs to the newer generation of the ALEX allergy testing platform.
The precise number of allergen extracts and molecular components listed can vary according to the test setup and the laboratory.
When you are comparing ALEX2 and ALEX3, you should look at the current validated allergen panel which is provided with the test rather than depending only on the number of allergens reported.

Should I stop taking my antihistamines?

Blood-tests for specific IgE are generally affected in the same way as skin-prick tests not by antihistamine medication.
You should follow the collection and testing instructions provided in your kit and inform your healthcare professional of any medication you are taking.
Do not discontinue the medication you have been prescribed without first obtaining medical advice.

Is ALEX3 a test for food intolerance?

No.
The ALEX3 test is used for detecting IgE sensitisation and aims to investigate possible IgE-mediated allergic sensitisation.
This is not a general test for food intolerances and must not be used in the diagnosis of conditions such as lactose intolerance, non-coeliac gluten sensitivity or other food reactions that are not mediated by IgE.

Why Choose Repose Healthcare?

  • All-round in scope – covering a wide range of food and environmental allergens.
  • Convenient. Collect your sample at home.
  • A small blood sample – obtained by pricking the finger.
  • Testing involving the determination of specific IgE and total IgE.
  • We offer professional laboratory testing – the sample is analysed in the laboratory.
  • Secure results – You will receive your report digitally.
  • We provide discreet service, including convenient home collections and confidential reporting.

Frequently Asked Questions

Is the ALEX3 Allergy Test accurate?

ALEX3 is a laboratory technique for testing IgE which is intended for detecting sensitisation to the allergens in the validated panel; nevertheless, no allergy blood test can determine clinical allergy on the basis of the laboratory result alone.
The results should be understood in light of your symptoms and medical history.

Is a referral from a general practitioner necessary?

You do not need a referral from your general practitioner in order to have the test carried out by Repose Healthcare, but it is advised that you seek professional medical advice if the results are significant or unexpected.

Is it possible for children to have an ALEX3 allergy test?

The test can be used with children provided that the laboratory’s sample requirements are met. When taking blood from children, appropriate adult supervision should be ensured.

May I take the antihistamines before the test?

You usually do not need to stop taking antihistamines when undergoing a specific IgE blood test, unlike the case with some skin-prick tests where it may be necessary to stop them. Be sure to follow the instructions that come with your test and contact your healthcare professional if you are at all unsure.

Does a positive result mean I have an allergy?

It doesn’t have to. A positive specific IgE result shows that you are sensitised. Whether or not clinical allergy exists will depend on whether exposure to the allergen results in symptoms and must be interpreted in light of your medical history.

Shall I use the results to alter my diet?

You shouldn’t base major dietary exclusions just on a positive IgE result and should instead discuss the findings related to food with a suitable healthcare professional, especially before taking any major food groups off a child’s diet.

Can the ALEX3 test be used to diagnose eczema or asthma?

Not at all; ALEX3 does not have the ability to diagnose eczema or asthma. It can offer information regarding IgE sensitisation which may be relevant when investigating allergic triggers.

How long will it be before the results are available?

The results are usually issued within 3-5 working days once your sample has been received and accepted by the laboratory.

Important Allergy Testing Disclaimer

The ALEX3 Allergy Test is a blood examination in a laboratory setting which detects specific IgE sensitisation and total IgE, but the test on its own does not provide a definite diagnosis of an allergy.
A positive result indicates sensitisation to the relevant allergen but does not necessarily mean that exposure will cause symptoms or indicate the severity of any potential reaction. A negative result does not exclude every possible allergic or non-allergic condition.
Test results should be interpreted alongside symptoms, medical history and clinical assessment by a qualified healthcare professional.
Do not make significant dietary changes, stop medication or alter treatment solely on the basis of an ALEX3 result without appropriate medical advice.
If you have experienced a severe allergic reaction, including difficulty breathing, swelling of the throat or tongue, collapse or other symptoms suggestive of anaphylaxis, seek emergency medical attention immediately. An at-home allergy test should not be used in place of urgent assessment.

Order Your ALEX3 Allergy Test

The ALEX3 Allergy Test provides comprehensive laboratory analysis of specific IgE and total IgE against a broad range of food and environmental allergens.
Collect your sample conveniently at home and receive your laboratory results digitally.
Order your ALEX3 home allergy blood test from Repose Healthcare.

Home Testing Kit

The required sample collection equipment for your selected test.

Sample Collection Materials

Appropriate tubes, swabs, lancets or collection containers depending on the test.

Step-by-Step Instructions

Clear instructions explaining how to prepare for and collect your sample.

Sample Return Packaging

Suitable packaging for safely returning your sample to the laboratory.

Laboratory Testing

Your sample is analysed for the biomarkers or health markers included in your selected test.

How does the home testing process work?
Choose your test online and place your order. Your test kit will be delivered with clear instructions and the equipment needed to collect your sample at home. Once your sample has been collected, return it using the provided return method. Your sample will then be analysed and your results provided securely.
Each test kit includes step-by-step instructions explaining how to collect your specific sample. Follow the instructions carefully to make sure your sample is collected correctly.
Our home testing service is designed to allow you to collect your sample from home. Whether you need to speak with a healthcare professional depends on your individual circumstances and the type of test you are taking.

Place your collected sample in the packaging provided with your kit and follow the included return instructions. Where applicable, a prepaid return envelope will be included.

The turnaround time depends on the test you have purchased. Your product page and test instructions will provide the expected timeframe for your results.

 

A result outside the laboratory reference range does not necessarily mean that you have a medical condition. If you are concerned about your results, discuss them with an appropriate healthcare professional.
Follow the instructions provided with your kit. If you believe your sample has been collected incorrectly or your kit has been damaged, contact customer support before sending the sample back.
Yes. You can order multiple tests where appropriate. Make sure you follow the individual collection and preparation instructions for each test.
Your personal and test information should be handled securely in accordance with the applicable privacy and data protection requirements.

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