Contouring our faces, torsos, décolleté and legs with glimmering this and bronzing that is a big, fat cosmetic summer hoax. Once the sweltering heat sets in (aka now), that stuff runs and smudges and leaves weird streaks that look like we jumped in a puddle of L.A. hobag melted tan. So can we please have some magic dust that protects our skin and makes us look perfect quick? Why, thank you, Chantecaille’s new Protection Naturelle. The all-in-one wand of SPF 46 translucent mineral coverage protects against the full spectrum of UVA/UVB rays while absorbing excess surface shine with no chalky reside. $65 ($30 for refills) at Barneys New York.