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Test on the Efficacy of Antimicrobial Preservation

The controlled quality and microbiological safety of a product are mandatory requirements for its safe use. The preservation system is an essential aspect of a product's microbiological safety and safety evaluation.

Labor L+S AG has extensive expertise in testing the efficacy of antimicrobial preservation. We perform preservation challenge tests on the basis of the European, US and Japanese pharmacopoeias. We do not only examine according to the common regulatory requirements, but also develop and implement specific formulation methods.

  • Test on the efficacy of antimicrobial preservation according to DIN EN ISO 11930 (for cosmetic products) and DIN EN ISO 14730 (lens care products)
  • Suitability testing of the microbial count method
  • Development of new methods and implementation of special test procedures for already existing methods
  • Modified test design, depending on the application

Your contact person:

Christine Weiß
Graduate Ecotrophologist


Impressionen vom Tag der offenen Tür

Am 7. und 8. Juli wurde der Neubau der Labor L+S AG eingeweiht. Mehrere Tausend...



Low Endotoxin Recovery/Masking (Hands-on Laboratory Training Course)

27. - 28. Februar 2018, München (ECA Academy)

Transfer analytischer Methoden und Verfahren (A19)

25. -27. April 2018, Mannheim (Concept Heidelberg)



Labor L+S AG

Mangelsfeld 4, 5, 6
97708 Bad Bocklet-

Fon: +49 (0)9708/9100-0
Fax: +49 (0)9708/9100-36


In our Infobox, we make additional information on our company, our service portfolio and our QM certification available to you in a download.