A sunscreen composition, either impregnating a wipe substrate or comprising a sunscreen spray, wherein the composition comprises an
oil phase dispersed stably as
emulsion droplets in a water phase that contains i) a booster for the
sun protection factor (SPF), comprising a combination of water-dispersible particulate materials, one of which is smectite clay, and a water-soluble or water-dispersible phenolic
polymer; and ii) a water-soluble or water-dispersible
polymer having a weak
acid group, a weight average molecular weight of 1,000-100,000 Dalton, and an anionic
charge density of no less than 4 milliequivalent per
gram of the
polymer; the said sunscreen composition meeting the following specifications: i) the in-vivo
sun protection factor (SPF) is ≧1.8 times the weight percent of the sunscreen active(s) contained therein, based on the weight of the sunscreen composition; and ii) the
shear thinning index of the composition is greater by 5% or higher with the weak acid polymer contained therein than without the polymer, the
shear thinning index being defined as the ratio of viscosities of the sunscreen composition at 0.5 rpm and 20 rpm, measured on a Brookfield RVT
viscometer at 25 ° C., using spindle 7, after cooling the composition to
room temperature and storing it at that temperature for about 24 hours.