ONLINE ALLERGY TESTING UK

At-Home Allergy Testing in Scotland, Wales, Northern Ireland & England

Online allergy testing UK allows patients across the country to investigate allergy symptoms from home using clinically proven blood tests. Allergy symptoms can affect daily life and may be difficult to explain. For example, some people experience skin rashes, digestive problems, breathing symptoms, or reactions to food. Because of this, identifying the cause is essential.

Our at-home allergy testing service enables patients across the UK to access reliable, consultant-reviewed allergy testing from the comfort of their own home. As a result, there is no need to attend a clinic in person.

Using the ALEX³ (ALEX 3) Molecular Allergy Test, a single blood sample can identify sensitivity to up to 300 food and airborne allergens and allergen components. Therefore, patients receive a detailed overview of allergic sensitisation with one test.

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At-Home Allergy Testing Available Across the UK

We provide UK-wide at-home allergy testing for patients living in:

– Scotland
– England
– Wales
– Northern Ireland

Samples from abroad can also be received; however, please discuss logistics with our team before purchasing.

This service is ideal for patients who cannot attend a face-to-face appointment or who live far from London. In addition, it offers the same high-quality laboratory testing and specialist review wherever you live, including rural and remote areas.

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How Does At-Home Allergy Testing Work?

The process is straightforward and clinically guided.

First, you purchase the test online. After this step, a home blood sample collection kit is sent directly to your address. Once the sample is returned to the laboratory, it is analysed using the ALEX³ molecular allergy testing platform.

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Reviewing Your Results and Next Steps

Next, your results appear in the secure electronic health record system Carebit. An experienced allergy consultant then reviews the findings.

As a result, you can book an appointment to discuss your results in detail. During this consultation, you may receive a clinic letter, a treatment plan, and a personalised allergy report with clear explanations and recommendations. If you wish, the report can also be sent to your GP.

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What Does the ALEX³ Molecular Allergy Test Measure?

The ALEX³ Molecular Allergy Test is an advanced IgE blood test. It measures sensitisation to a wide range of allergens, including:

– Food allergens
– Pollen and grass allergens
– House dust mites
– Animal dander
– Moulds and other airborne allergens

Unlike older extract-only tests, ALEX³ measures both whole allergens and allergen components (molecular proteins). Because of this, it helps distinguish true allergy from cross-reactivity and improves clinical accuracy.

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Where Should I Start With Allergy Testing?

If You Live in London

If you would like an in-person or remote consultation, or if your child or baby needs assessment by an allergy consultant, you can book an appointment online or call 020 314 33449.

If You Live Outside London

If you live in Scotland, Wales, Northern Ireland, or elsewhere in England and cannot attend our Harley Street or New Malden clinics, the at-home testing pathway is the best place to start.

In this case, simply purchase the ALEX allergy test online. Once payment is completed, the laboratory sends your sample collection kit. Afterwards, you can book a remote appointment to discuss your results.

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Blood Sample Collection at Home

Most adult patients can collect a small blood sample using a finger-prick method. A step-by-step explainer video is provided to guide you through the process.

However, finger-prick testing may not be suitable for babies or very young children. In these situations:

– The sample must be taken by a trained healthcare professional, whom you can find locally
– Our clinic can provide the necessary materials if you live far from London
– Alternatively, patients in London may attend our clinic for sample collection (additional fee applies and an appointment is required)

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When Will I Receive My Results?

Your personalised ALEX³ allergy report is usually ready within a few days of the laboratory receiving your sample.

You can view your results in the secure electronic health record system. If further investigation, treatment, or consultation is required, we can arrange an appointment with one of our allergy specialists.

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Can This Test Identify Food Allergies?

Yes. Food allergy is one of the most common reasons patients choose the ALEX³ molecular allergy test.

The test identifies IgE-mediated food allergies, which may cause immediate or severe reactions. Based on your results, we can provide advice and, if needed, discuss further testing.

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Food Allergy vs Food Intolerance

A food allergy is not the same as a food intolerance.

– Food allergy involves the immune system and IgE antibodies
– Food intolerance is usually related to digestion or enzyme deficiency

If allergy testing is negative, our doctors may explore intolerance using dietary methods. These include food and symptom diaries followed by structured food reintroduction.

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Why Choose Our At-Home ALEX³ Allergy Testing Service?

– Consultant-led assessment
– Advanced molecular allergy testing
– Clear explanations and honest advice
– No unnecessary supplements or hidden charges
– Results you can trust

Ultimately, our goal is to identify the cause of your symptoms and help you manage them safely and effectively.

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Start Your At-Home Allergy Test Today

You can begin at-home allergy testing in Scotland, Wales, Northern Ireland & England by purchasing the test online.

The explainer video below demonstrates how to collect a finger-prick blood sample for the ALEX allergy test.

Allergy Testing Components

Allergen Components have a wide variety of uses – from the diagnosis and management of allergic patients to the selection of patients suitable for Specific Immunotherapy.

Use of Component Resolved Diagnostics (CRD) has fast become an interesting and probably essential part of allergy diagnostics.

Allergens, such as a species of pollen, a mite or a food are composed of a number of  allergenic molecules that may cause sensitisation.

A much more precise and detailed picture of the patient’s sensitisation pattern can be obtained by measuring IgE to the components.

This gives more information for the management of an allergen-sensitised individual indicating whether, for example, symptoms are likely to be severe and ultimately leads to better patient care.

All tests are charged individually.

ALTERNARIA COMPONENTS

• Alternaria alternata –  m6
• rAlt a1 – m229

ASPERGILLUS COMPONENTS

• Asperillusfumigatus – m3
• rAsp f 1 – m218
• rAsp f 2 – m219
• rAsp f 3 – m220
• rAsp f 4 – m221
• rAsp f 6 – m222

BIRCH COMPONENTS

• Betula verrucosa (Silver Birch) – t3
• rBet v 1 (PR-10) – t215
• rBet v 2 (Profilin) t216
• rBet v 4 (Ca binding protein) t220
• rBet v 6 – t225

BRAZIL COMPONENTS

• Brazil Nut – f18
• rBer e 1 (Storage protein 2S albumin) – f354

CAT COMPONENTS

• Cat dander – e1
• rFel d 1 (Uteroglobulin) – e94
• nFel d 2 (Serum Albumin) – e220

CELERY COMPONENTS

• Celery – f85
• rApi g 1.01 (PR-10) f417

COW’S MILK COMPONENTS

• Cow’s milk allergen – f2
• nBos d 4 (a-lactalbumin) – f76
• nBos d 5 (b-lactoglobulin) – f77
• nBos d 6 (BSA cow) – e204
• nBos d 8 (Casein) – f78
• nBos d lactoferrin (Lactoferrin) – f334

DOG COMPONENTS

• Dog dander – e5
• rCan f 1 (Lipocalin) – e101
• rCan f 2 (Lipocalin) – e102
• nCan f 3 (Serum Albumin) – e221

EGG COMPONENTS

• egg white (Gallus domesticus)- f1
• egg yolk – f75
• nGal d 1 (Ovomucoid) – f233
• nGal d 2 (Ovalbumin) – f232
• nGal d 3 (Conalbumin) – f323
• nGal d 4 (Lysozyme)- k208

FISH COMPONENTS

• Cod – f3
• Carp (Cyprinus carpio)
• rCyp c 1  (Parvalbumin)- f355
• Cod (Gadus morhua)
• rGad c 1 (Parvalbumin) –  f426

HAZELNUT COMPONENTS

• Hazel Nut (Corylus avellana) – f17
• rCor a 1 (PR-10) – f428
• rCor a 8 (LTP) – f425

HOUSE DUST MITE COMPONENTS

• House Dust Mite (Dermatophagoides pteronyssinus) – d1
• nDer p 1 – d202
• rDer p 2 – d203
• rDer p 10 (Tropomyosin) – d205

KIWI COMPONENTS

• Kiwi (Actinidia deliciosa) – f84
• rAct d 8 (PR10) – f430

LATEX COMPONENTS

• Latex (Hevea) k82
• rHev b 1 – k215
• rHev b 3 – k217
• rHev b 5 – k218
• rHev b 6.01 – k219
• rHev b 6.02 – k220
• rHev b 8 (Profilin) – k221
• rHev b 9 – k222
• rHev b 11 – k224

OLIVE COMPONENTS

• Olive  (Olea europaea)- t9
• nOle e 1 –  t224

PEACH COMPONENTS

• >Peach (Prunus persica) – f95
• rPru p 1 (PR-10) – f419
• rPru p 3 (LTP) – f420
• rPru p 4 (Profilin) – f421

PEANUT COMPONENTS

• Peanut (Arachis hypogaea) – f13
• rAra h 1 (7S globulins) – f422
• rAra h 2 (2S albumins) – f423
• rAra h 3 (11S globulin) – f424
• rAra h 8 (PR-10) – f352
• rAra h 9 (LTP) – f427

SHRIMP COMPONENTS

• Shrimp (Penaeus aztecus) – k24
• rPen a 1 (Tropomysin) – f351

SOYBEAN COMPONENTS

• Soybean  (Glycin max) – f14
• rGly m 4 (PR-10) – f353
• nGly m 5 (beta-conglycinin) – f431
• nGLy m 6 (glycinin) – f432

TIMOTHY GRASS COMPONENTS

• rPhl p 1 (Grass Group 1) – g205
• rPhl p 2 (Grass Group 2) – g206
• nPhl p 4 (Grass Group 5) – g208
• rPhl p 5b – g215
• rPhl p 6 (Ca Binding Protein) – g209
• rPhl p 7 – g210
• rPhl p 11 (Profilin) – g211
• rPhl p 12 – g212

VENOM COMPONENTS

• rApi m 1  (Phospholipase A2, Honey Bee) – I208
• rPol d 5 (European Paper Wasp) –  i210
• rVes v 5 (Common wasp) – i209
• rVes v 1 (Phospholipase A1, Common Wasp) – i211

Proteins found in insect venoms. Specific markers particularly important when considering venom immunisation.

WALL PELLITORY COMPONENTS

• Wall pellitory (Parietaria judaica)- w21
• rPar j 2 (LTP) – w211

WHEAT COMPONENTS

• Wheat  (Triticum aestivum) – f4
• rTri a 19  Omega-5 Gliadin –   f416

PR-10 PROTEINS

• rBet v 1 – t215
• rCor a 1 – f428
• rPru p 1 – f419
• rGly m 4 – f353
• rAra h 8 – f352
• rApi g 1.01 – f417
• rAct d 8 – f430

A heat labile protein, cooked foods are often tolerated. Often associated with local symptoms such as Oral AllergySyndrome (OAS). Often associated with allergic reactions to fruit and Vegetables in Northern Europe.

LIPID TRANSFER PROTEINS

• rPru p 3 –  f420
• rCor a 8 – f425
• rAra h 9 – f427
• rPar j 2 – w211

A stable protein to heat and digestion causing reactions to cooked foods. Often associated with systemic and more severe reactions in addition to OAS.  Often associated with allergic reactions to fruit and vegetatables in Southern Europe.

PROFILINS

• rBet v 2 –  t216
• rPru p 4 – f421
• rPhl p 12 – g212
• rHev b 8 – k221

Seldom associated with clinical symptoms but may cause demonstrable or even severe reactions in a small minority of cases.

POLCALCINS

• rBet v 4 – t220
• rPhl p 7 – g210

Ca binding protein

SEED STORAGE PROTEINS

• rAra h 2 (2S albumins) – f423
• rBer e 1 (2S albumins) – f354
• nGly m 5 (beta-glycinin) – f431
• nGly m 6 (glycinin) – f432
• rAra h 1 (7S globulins) – f422
• rAra h 3 (11S globulin) – f424
• rTri a 19 (Omega-5 Gliadin) – f416

Protein found in seeds serving as source material during growth of new plant.  Often stable and heat resistant proteins causing reactions also in cooked foods.

GLYCAN DETERMINANTS

• MUXF3 CCD (Bromelin) -o214

A marker for sensitisation to cross reactive-reactivity between species. Seldom associated with clinical symptoms but may cause demonstrable or even severe reactions in a small minority of patients.

LIPOCALINS

• rCan f 1 –  e101
• rCan f 2 – e102

Very stable proteins. Allergen components displaying limited cross-reactivity between species.

PARVALBUMINS

• rCyp c 1 (Carp) – f355
• rGad c 1 (Cod) – f426

A major allergen in fish. A marker for cross-reactivity among different species of fish and amphibians. A protein stable to heat and digestion causing reactions to cooked foods.

SERUM ALBUMINS

• nBos d 6 (Serum Albumin cow) – e204
• nFel d 2 (Serum Albumin cat) – e220
• nCan f 3 (Serum Albumin dog) – e221
• nSus s (Serum Albumin pig) – e222

A common protein present in different biological fluids and solids. Cross-reactions between albumins from different animal species are well known for example between cat, dog, cow and pork.

TROPOMYOSINS

• rPen a 1  – f351
• rDer p 10 – d205
  An actin-binding protein in muscle fibres.  A marker for cross-reactivity between crustaceans, mites and cockroach.