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Applicability Of The Schülke Koko Test For The Evaluation Of The Microbiological Safety...

Schülke Inc. makes their documentation available in the regions indicated below:

The schülke KoKo test is specifically verified for the assessment of cosmetic products. The germ spectrum includes typical product spoiling microorganisms besides the pathogen germs as required by the SCCP. By inoculation of a mixed germ spectrum, a symbiotic growth according to the natural conditions is possible. To make sure equivalent detection of bacteria as fungi, the tests are carried out on tryptone-soy-agar as well as on sabourauddextrose- agar. A wrong assessment of the efficacy of the preservative by inhibition of the growth of one microorganism by the growth of other germs is impossible as growth of microorganisms means that the sample is not sufficiently preserved.


Schülke & Mayr GmbH is a manufacturer of preservatives and multifunctional ingredients for the Personal Care and Cosmetics Industry. Our brands euxyl®, sensiva®, effisin® and sensidin® safeguard the high quality of your cosmetic products. They include a broad range of products from preservatives to multifunctional additives. The liquid concentrates are easy to process and contain optimised combinations of various active ingredients and excipients that have been specially developed for the complex demands of cosmetic formulations.

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