The formula has a waterproof & smudge-proof finish that lasts hours. It includes antioxidants and Vitamin A. Soft and blendable texture that melts on contact with the lips and sets for a long-lasting effect and defined look. Intense color payoff and fine lining for an accurate finish. This pencil helps define the lips and prevents lipstick bleeding. Colors are matched to compliment BEL London lipsticks. Dermatologically tested.