Rimmel London Stay Matte Liquid Concealer RIMMEL’s Stay Matte Liquid Concealer is a creamy and long-wear concealer that helps to hide imperfections and dark circles to reveal a flawless complexion. Color remains true to your skin throughout wear. Humidity-proof sweat-proof and heat-proof Stay Matte Concealer leaves your skin shine free for 24hrs. It gives a 24-hour shine. You ll have a flawless complexion all day long and helps skin look less fatigue. You d feel comfortable all day long.