Maintenance test - what information does it give us and why is it done?
The presence of appropriately selected preservatives in cosmetic products is key to ensuring the microbiological purity of products with a high microbiological risk. It is the preservation test (also known as the loading test) that allows us to make sure that the preservative system we have selected fulfils its intended purpose. What is a preservation test? A stress test involves the controlled introduction of suitable strains of micro-organisms [...].
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