Koster Keunen’s waxes are indicated for use in all cosmetic formulations, and their different properties allow cosmetic formulators to control the outcome of their finished formulas
Wax esters, like most lipidic materials, have a long history of use in personal care and cosmetics. For example, in 2nd century BCE China, it was common practice to apply naturally occurring animal fats and vegetable oils onto human skin to soothe or heal wounds.1
Although there was no formal knowledge about the composition of these natural fats, early users reasoned they must be similar to the composition of human skin, thus making them key ingredients in early ointments, liniments and salves. Aside from being efficient, these early formulations were relatively resistant to microbiological contamination and stable over time.2 Their shortcomings, like oxidation and rancidity, were eventually overcome with the introduction of antioxidants and replacement with synthetic ingredients.3
Today’s chemists are evolving with the global demand for functional, sustainable and renewable plant derived materials. In this paper, we study three alkyl esters that meet these current needs.
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