Booster for traditional preservative actives

In response to the increasing discussion about preservative actives, there has been interest in reducing the amount of traditional preservatives in cosmetic formulations. Methods of enhancing the efficacy of traditional preservative actives, so that lower levels of these materials can be used, have become increasingly of interest.
A repeated challenge test has been performed to illustrate the use of ethylhexylglycerin to improve the efficacy of traditional cosmetic preservatives, such as phenoxyethanol, methylisothiazolinone or methylparaben.

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Additional literature

Boosting efficacy of preservatives

Boosting efficacy of preservatives

Dr. M. Leschke, W. Siegert
Personal Care Europe