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Allergy Testing In London

With over half a million procedures undertaken, you're in safe hands

We understand how frustrating it can be when there seems to be no solution to a skin complaint - when the expensive moisturisers and cleansers don’t deliver the results that their packaging promises; when those 'life changing' masks and serums just fail to get the job done... We're here to tell you that you’re not alone. In fact, a lot of people are familiar with the struggle against a skin complaint that seemingly has no rhyme or reason.

Sometimes we need to look a little deeper….

Lesley Says

“I’ve seen so many severe skin complaints solved with allergy testing. Long term problems like acne or rosacea are much easier to treat once the root of the problem is uncovered.”

Dr Khan Says

“Our Allergy Check is very advanced - it covers a multitude of food and environmental allergens. With detailed, personalised results, we find it yields incredible results.”

Allergy Testing Before & Afters

The remarkable difference a Harley Street Skin Clinic treatment can provide

Sometimes, it takes gaining an understanding of the inside functions to gain a clearer sense of exactly what is happening on the outside. This is where Allergy Testing can be a game-changer.

Our comprehensive Allergy Check test is exceedingly thorough, using IgE antibody reactions to assess both environmental and food stressors within the body. Just 10 working days after a simple blood-prick test, you'll receive an extensive report detailing every perceivable allergic response, ranging from 'highly reactive' right the way through to the moderate and the low.

After Allergy Testing
Before Allergy Testing

We realise that many people suffering day in, day out with allergies just don't have the 3 month turnaround time that it takes when pursuing a test with the National Health Service. That's why, from us, you’ll receive exhaustive results in just 10 working days, and get definitive answers fast.

After Allergy Testing
Before Allergy Testing

What’s ideal about the test itself? It only requires 6 drops of blood - no intimate swabbing, no lengthy assessments - just a simple finger prick test to extract a minute blood sample. Following that, results come as a comprehensive overview of levels of reactivity, free of any difficult medical jargon.

After Allergy Testing
Before Allergy Testing

Without medical insight, the chances of you getting to the bottom of very specific allergy triggers - Hazelnut Pollen or Horse dander for example - are pretty slim. That is what makes an Allergy Check with Harley Street Skin something of a secret weapon. Goodbye hives, bumps, redness, peeling and dryness!

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Celebrity Journeys

Follow two of our celebrity patients on their journey to becoming their better selves

Every step of your journey with Harley Street Skin is handled with the utmost care and diligence. From your very first consultation, right the way through to follow up and aftercare, Harley Street Skin will guide, advise and support you at every given opportunity. We want to make sure that your time with us is as special to you, as you are to us...

Allergy Testing FAQs

The answer to some of the most common questions you may have

It's only natural to have questions if you are considering pursuing a treatment for the first time, and at Harley Street Skin, it's important to us that you feel confident and comfortable at every stage of your journey. To help you find the answers you need, here are a few of the more common quibbles that we find our clients frequently ask...

While most allergy symptoms are mild, they tend to develop quickly and can be a nuisance.

Common symptoms include sneezing, itchy eyes, wheezing, raised rashes, swollen lips, and stomach pain. These symptoms will vary depending on the severity of your allergy - and in severe cases can lead to anaphylaxis - a life threatening immune response which requires immediate medical attention. Anaphylactic shock affects the whole body and can develop minutes after exposure to the allergen.

With regards to skin, allergic responses are much milder but can lead to long standing skin conditions such as eczema, dermatitis, hives, blisters, excessive itching, peeling, flushing and/or visible irritation.

If you are experiencing any of the above and just cannot get to the root cause, you may very well be suffering with an undiagnosed allergy...

An allergy check with Harley Street Skin is a very simple process. It works by testing a small blood sample - around 6 drops - for what is known as ' IgE antibodies'. IgE antibodies are released as an immune response when your body encounters something it is allergic to. Elevated levels of IgE in response to a certain substance then indicate a reaction is taking place.

Patients have two testing options:

  1. Purchase a test kit, perform a simple blood prick test at home and then send off your sample for examination. After 10 days you will then receive a comprehensive breakdown of results via the post.
  2. Complete a blood prick test with us at the clinic and then let us handle things from there on out. Your results will come back to us, and you'll simply need to book in to discuss the findings with one of our knowledgeable practitioners.

Results: All results are given in accordance with a numbered scale that details exactly how severe your reaction to all 38 particular allergens.

Our Allergy Check Test will look for responses to certain foods - such as fruits, vegetables, nuts, wheat, meat, fish and dairy - as well as reactions to certain environmental allergens. These include various types of tree, pollen, varieties of grass/insect and animal dander.

A full list includes:



    Ash (European)

    Bahia grass

    Bermuda grass



    Cat dander

    Cladosporium herbarum



    Common ragweed

    Cows Milk



    Dog dander

    Egg white

    English plantain


    Hazelnut Pollen

    Horse dander

    House dust mites














    Timothy grass


    and Wheat

Put simply, an allergy causes a more severe and immediate reaction which can - in extreme cases - be fatal. An 'allergy' is defined by an autoimmune response where your body releases Immunoglobulin E (IgE). When your body encounters an allergen, it releases these IgE antibodies which then travel to the cells that release histamine and other chemicals. This is when an allergic response will manifest. Allergic reactions most commonly cause issues which affect the lungs, nose, throat or skin.

Intolerances, on the other hand, typically refer to food sensitivities. These sensitivities are often (although not exclusively) linked to digestion and a body's inability to process a certain ingredient. They are substantially less dangerous and time-sensitive, although can be extremely uncomfortable and/or painful to experience. Associated symptoms are more frequently noted as: weight control issues, fatigue, nausea, vomiting, upset stomachs and cramping.

If you feel your allergies may be more closely linked to a particular food ingredient, you may wish to instead pursue one of our Food Intolerance Tests.

The test itself is very quick. The finger prick blood test can be completed in a matter of minutes, with results available within just 10 working days of receiving your sample. The results then come in the form of a comprehensive list of all allergens, scoring between 0 and 6 on a reactivity scale. These numbers then correspond with a category (either 'no', 'low', 'moderate' or 'high' reaction).

About The Harley Street Skin Clinic

The award winning clinic dedicated to helping you be your best self

We understand that deciding to go forward with cosmetic treatment can feel like a huge decision. One that we certainly wouldn't expect you to go ahead with without hearing a little bit about us first. Here is exactly why people around the world are happy to put their trust into Harley Street Skin Clinic.

The Harley Street Skin Clinic
Quality & Safety is our Culture

Since 2004, Harley Street Skin has been on speed dial to some of the world's highest flyers thanks to the expertise of cosmetic tour de force, Dr. Aamer Khan and wife Lesley Reynolds.

With their flagship clinic based on the world’s most famous medical strip, Harley Street Skin quickly became a medical and cosmetic frontrunner, drumming up a pristine professional reputation and impressive roster of celebrity clientele. The clinic was in fact so thriving that it gained the attention of television network SkyOne, becoming the focus of hit documentary series Stitch Me, Lift Me, Tuck Me.

Offering an expansive range of both surgical and non-surgical treatments, Harley Street Skin are renowned worldwide for their cosmetic precision, expertise and minimally invasive techniques. From top of the line body sculpting treatments and cosmetic contouring to breast enhancement and discreet anti-ageing lifts, Harley Street experts offer the A-list experience from consultation through to aftercare.

But that's not all. Harley Street Skin are also pioneering skincare specialists, offering solutions to everything from anti-ageing and resurfacing, to colour correction and hydration.

Carefully formulating the perfect regime for even the most stubborn and unusual of skin complaints, Harley Street Skin boast an acclaimed skin care range frequently making an appearance in beauty mag must-haves, health and lifestyle columns, and celebrity handbags around the world.

With highly skilled practitioners, doctors and surgeons on hand at every turn, Harley Street Skin can help you attain the aesthetic you've been dreaming of - whatever your cosmetology needs.

Dr Aamer Khan & Lesley Khan