All the value under the sun

摘要

Klaus Jenni and Anna Howe examine how water-resistance, sand repellence and moisturisation properties make cationic emulsifiers a versatile alternative to conventional emulsifiers in sunscreens Cationic emulsions have attracted increased interest in recent years due to their unique skin feel, which is drier and more powdery than that of anionic or nonionic emulsions. Following their introduction for skin, hand and baby care in the US, between 1999 and 2007 this market segment expanded into over 30 new products containing the cationic emulsifier distearyldimonium chloride (Figure l).The application area first seen in the market was skin care for babies.