Sensai Contouring Lipstick [Refill Only] Cl04 - Neutral RedSensai Contouring Lipstick [Refill Only] Cl04 Neutral Red, A soft matte texture that glides on like silk to provide a multifaceted finish. Lip form, contour, and texture are visibly enhanced with a single stroke. Sumi Shadow Pigments, as used in traditional Japanese painting techniques, provide a hint of shade that turns color into lip sculpting colors. Contours are defined and the fullness of the lips are accentuated with a single stroke of color.