The patch test evolved in the 19th century to analyse the etiology of allergic dermatitis. Today, it is a well-established procedure with internationally defined rules and guidelines underlying constant review and updates.
In the cosmetics industry, the patch test can be used to analyse the irritant potential of products. Patch-testing techniques are routinely performed to assess the irritant and allergic potential of topical formulations to support the product safety dossier of cosmetics and articles of daily use.
Dermatest evolved, in 2016, the accredited patch test to guarantee the highest standards and highest possible safety for patch test results. This accredited test, developed and established on the basis of many years of experience and exacting quality standards, is the first test procedure of its kind to have been accredited to DIN EN ISO/IEC 17025 by Deutsche Akkreditierungsstelle (DAkkS, the German national accreditation body).
This certified procedure is based on the German Dermatological Society (DDG) and German Society for Allergology and Clinical Immunology (DGAKI) guidelines, Performing Patch Tests with