Water activity reduction
as a strategy to improve microbial stability and enhance skin barrier function
We have developed an alternative strategy for the preservation of O/W emulsions based on the reduction of water activity with natural humectants such as Cosphaderm® Propanediol natural. This not only effectively improves the microbial stability of a cosmetic formulation, but also simultaneously strengthens the skin barrier through its application.
The modern way of preserving a product means making a product unattractive for germs but highly attractive for consumers without causing any irritation. In modern cosmetics, mild preservation plays a key role and is more important than ever.
For cosmetic products, the focus is on crucial requirements regarding their stability, effectiveness and harmlessness. Microbiological stability plays an essential role here, especially when it comes to consumer safety.