Protective Efficacy Analysis
Protective effectiveness tests are the test parameters carried out to determine the microbiological stabilization of cosmetic products before and after the package is opened. The Protective Efficacy Test, also known as the Challenge Test, provides information about the product by detecting microbiological contamination and deterioration during the shelf life of cosmetic products.Due to the direct contact of cosmetic products with the skin, the production process is as important as the closed packaging process until it reaches the consumer and the expiry date of the open packaging. Cosmetic products are artificially contaminated. Depending on the relevant standard, protective effectiveness tests are carried out by logarithmic evaluation of the number of microorganisms in different processes such as the 2nd, 7th, 14th and 28th days.
Microorganism strains used within the scope of "Protective Efficacy Test / Challenge Test" are as follows:
• Pseudomonas aeruginosa (ATCC 9027)
• Staphylococcus aureus (ATCC 6538)
• Escherichia coli (ATCC 8739)
• Candida albicans (ATCC 10231)
• Aspergillus brasiliensis (ATCC 16404)
