Si Pure Summer by Parfums Saint Amour Perfume. Si Pure Summer by Saint Amour is a jasmine-based women’s fragrance that is both sweet and intense. Introduced in 1997, Si Pure Summer offers a hints of vanilla, lily of the valley, jasmine and cedar that casually linger close to the skin. Reach for this lighthearted scent for a day at the office or on the way to an evening out with friends. With a moderate degree of longevity, this sweet fragrance delivers a powerful bouquet for hours.