The aim of microbiological tests is to monitor contamination during the entire cosmetics production process, from obtaining the raw material and production hygiene, to the finished product. These tests verify the degree of microbiological purity of cosmetics and thus confirm their safety, in accordance with the acceptable levels specified in the ISO 17516 Cosmetics – Microbiology – Microbiological limits.
The methodology can be individually suited to the customers requirements – in particular, focused on strains obtained from raw materials or directly from the production environment.
The tests are performed in order to confirm or exclude the antimicrobial properties of the product against selected test strains obtained from recognized collections or swabs from the surface of the skin of the probants. The test is performed on the basis of an internal procedure using the following method:
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