Yves Saint Laurent has just released the first product from its much-awaited holiday collection, Eclat de Givre. This is a super-shimmery "frozen" eyeshadow with a unique twist: On contact with your skin, the shadow transforms from a loose powder into a creamy eye shadow with metallic highlights, using a cool new technology.

The formula also contains silicone-coated pigments that allow the shadow to glide on easily and evenly. I absolutely love the fabulous built-in brush, which makes for neat application. Buy it here for $24 in three luminous shades: White Frost (an iridescent white opal), Bronze Frost (a bronzy tone with gold accents), and Copper Frost.