Natural Allergen source materials

We produce natural allergens of insects and moulds for professionals in the field of allergy and asthma. The cultivation technique we use leads to high concentrations of the major allergens, resulting in strong raw materials, whole cultures, extracts and purified major allergens.

Latest posts

Influence COVID-19 on service Citeq

INFLUENCE CORONAVIRUS ON ORDERS Unfortunately there is no escaping it. The corona virus is spreading rapidly around the world and is also affecting the deliveries of orders. That is why we want to keep you informed about the status and the effect on the delivery of...

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Citeq at the ISMA in Amsterdam

Later this week (28-30 November) we will be present at the International Symposium on Molecular Allergology (ISMA) in Amsterdam. You can find us during the exhibition at booth 1 and we would be glad to welcome you there! ISMA 2019 Over the past decade, molecular...

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Mycoplasma and house dust mite

HDM extracts are made from natural animal material which opens up the possibility for different kinds of bacteria to be present in them from the mite of origin.  Autoclaving is not possible with mite extracts as this negatively impact the product and although filtering over a 0,22μm filter does diminish bacterial and fungal contamination it does nothing against one bacterial genus called Mycoplasma.

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EAACI 2019 in Lisbon

In a few weeks time we are present at the EAACI congress (2 to 4 June) in the beautiful city of Lisbon. You can find us in hall 2, stand C.19. At the EAACI we will be presenting new products such as the HDM Elisa Kits and also the introduction of unique standards of...

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Obituary Tim Smilda

Behind every tear is a smile of memory Unfortunately we received the message that our very valued colleague died very suddenly at the age of 57 He worked for our company for many years and with great dedication. First in his role as Head of R&D, where beautiful...

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Instructional video ELISA kit

HDM ELISA kits With the release of our house dust mite ELISA kits we have extended our HDM product catalogus. For the house dust mite D. pteronyssinus we have the Der p 1 ELISA kit and Der p 2 ELISA kit available. For the house dust mite D. farinae we have the Der f 1...

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Our guarantee


Our material will be delivered in freeze-dried (lyophilized) form in different sizes so you always have the right amount available and you are assured of stable material.

Worldwide delivery

Our products are used by researchers and diagnostic companies all over the world. We ship our products with FedEx to your country of choice.



Because of our quality system we produce high quality allergen extracts. Our products will be delivered with a certificate that specifies the amount of allergens, level of endotoxin and much more.

Large batches

We produce large batches so you are assured of material from the same batch over a longer period of time. You can even make a reservation for material from a specific lot.

Let’s work together

How can we help you?

Please let us know how we can help you. Send us a message and we will get back to you right away.

House dust mites

Storage mites