Kevin Aucoin The Etherealist Skin Illuminating Foundation Light 01A radiance boosting, serum foundation ideal for all skin types and especially those which are dry. Penetrating the skin with a hit of hydration, The Etherealist Illuminating Foundation is an essential step in creating an illuminated base. The lightweight, serum textured formula applies like a dream across the epidermis imparting a sheer to medium coverage that glows without looking overly shiny, allowing you to achieve a high definition finish.