Sunscreen Compositions With Natural Waxes For Improved Water Resistance

摘要

A sunscreen composition having improved water resistance comprising (i) a sunscreen active agent; (ii) a water resistant agent comprising a natural wax having a Damping Factor of less than 1.0 in a linear viscoelastic range at body temperature; and (iii) an emulsifier or a surfactant capable of stabilizing an emulsion of components (i) to (iii), wherein said sunscreen composition maintains at least 75%, preferably at least 85%, and most preferably at least 99%, of its static SPF after water immersion for 4 hours.