Sit through the salad course at a dinner party thrown by San Francisco’s elite and the conversation inevitably turns to beauty (interior design is discussed over dessert). This is how we heard about Illuminata, owned by esthetician Cynthia Quan. Mellow and sage (not to mention a master masseuse), Quan offers European facials that cater to a hurried crowd, as well as those who love to linger. This time of year, when the heat makes our sweat glands work overtime, clients adore the back treatment which includes cleansing, exfoliation, steam, extractions, mask and a rub down. Two consecutive treatments in one month and you’re on your way to wearing that LBD that bares all.