

About us
We understand the significant impact that allergies and food sensitivities can have on physical and emotional health. Sometimes allergies can be a serious and often overlooked health issue, with symptoms ranging from mild discomfort to life-threatening reactions.
That's why we have created a revolutionary at-home allergy test that delivers results with unparalleled accuracy and reliability.
Our mission is to provide the most comprehensive and reliable testing available, making it easier than ever for individuals to identify and manage their triggers and overcome insecurities.
We believe that everyone deserves to live their life to the fullest, without the limitations and uncertainties that come with these challenges.
Through our commitment to innovation, accuracy, and accessibility, we are creating a world where allergy and food sensitivities are no longer a barrier to living a happy, healthy, and fulfilling life.
Our values
What makes us tick
Our values
What makes us tick
Experience
We have in-house medical experts and scientific pionieers with more than 35 years of experience in the field of immunodiagnostics.
Reliable
We are the global leaders in immunodiagnostics and provide the whole value chain of allergy and food intolerance testing ourselves.
Approachable
We explain scientific content in an understandable way.
Our mission
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Reduce
Directly & indirectly reduce costs for patients & healthcare systems through innovative methods.
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Enable
Enable individualized allergy & food intolerance testing.
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Improve
Improve patients' quality of life by helping them take care of their personal health.
Our vision
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Innovate
Develop, produce and distribute innovative high-quality products for in-vitro diagnostics of allergies & food intolerances.
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Revolutionize
Continuously drive (r)evolution in molecular immunodiagnostics.
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Raise the bar
Combine the latest scientific findings with state-of-the-art technology & set new standards in our field.

Our history
Our founder, biologist Christian Harwanegg, PhD, worked for the leading companies in immunodiagnostics for over a decade, before founding his own med-tech business MacroArray Diagnostics (in short, MADx) in 2016. Together with a multidisciplinary team with years of experience in in-vitro diagnostics, he strives to improve allergy testing. Currently, the ever-growing MADx team consists of more than 40 employees, including experienced specialists from the fields of research, development, production, engineering, marketing, product management, and sales.
As MADx, our customers are hospitals, laboratories, and doctor’s offices in over 60 countries around the globe, who use our self-developed hardware and software solutions for comprehensive allergy testing on their patients. MADx is the world leader in multiplex allergy diagnostics, offering the most comprehensive test panel of allergen extracts and molecular allergens, which give a near complete picture of each patient’s sensitizationSensitization is the first step towards developing a type I allergy. Allergic reactions do not occur upon first contact with an allergen. Before that can happen, your immune system must be able to recognize an allergen. When you get stung by a bee, your immune system will remember the structure of the allergen (= a protein in the insect venom) to be able to produce IgE antibodies against it in the future. This process is called sensitization. status.
To find out more about our work as MADx, click here.

Our goal
As 7DROPS, our customer is YOU. We use all the highly advanced MADx tech to offer affordable, accessible, and non-invasive at home allergy and food intolerance testing for everyone. We believe that every patient deserves individual advice and therapy tailored to their allergies and food intolerances.
To achieve that, patients need to know where they stand. With the 7DROPS at-home test kit, every patient can collect their sample from the comfort of their own home and send it back to the 7DROPS lab for analysis. We test for 295 different allergens that may cause allergy symptoms, and/or 286 food antigens that may cause food intolerance reactions. With their results, patients also receive practical advice on how to proceed, including tips on prevention and therapy options.