Lancome Teint Idole Ultra Wear Care & Glow Serum Foundation is a buildable medium coverage serum foundation that lasts for up to 24 hours. This liquid foundation uses an 82% serum base formula, infused with hyaluronic acid and mandelic acid to help plump and smooth your complexion. Available in 30 transfer-resistant shades made for all skin types, even the most sensitive skins.