Preservation of Cosmetics against Microbial Contamination

Preservatives are crucial in preserving the integrity and stability of cosmetic products, ensuring consumer safety and extending their shelf-life, as they can be damaged by microorganisms.Cosmetic items can be contaminated in two ways: during manufacturing or during use by the user; as a result, many limitations and legalizations have been implemented to reduce microbiological development.Preservation systems include two phases: primary preservation during production and secondary preservation after manufacture.Cosmetic items have been preserved using three basic strategies: physical, chemical, and physicochemical.Cosmetic preservation faces difficulties such as selecting a suitable preservative based on safety, antibacterial efficacy, compatibility, and other factors.This review aims to discuss cosmetics preservation strategies which are considered an important part of cosmetic microbiology.