Do you want your smokey eye to smolder or make your neon colors pop? Then, eyeshadow base is a necessity.Eyeshadow base intensifies the color of the eyeshadow; while primer makes the eyeshadow stick. Eyeshadow bases mostly come in white; however, black is widely underutilized. Black eyeshadow base is best used for darker eyeshadows, such as black, midnight blue, and plum. Your colors will flare ostentatiously after blending.