New skincare line LAB21 is targeting sensitive skin. Created by former Estée Lauder executives, LAB21 features customized lotions, creams, and serums that contain no surfactants, the often irritating detergents found in most skincare products. Customers complete a computerized questionnaire about lifestyle, allergies, and skin type. Answers determine which ingredients will be used, and scientists at laboratories mix the products, giving each client a formula number and delivering the goods within 48 hours. LAB21 sells at Bergdorf Goodman (800-964-8619) in New York and Nordstrom (800-695-8000) in California. $50-$120.