Clinique Lash Power Lengthening Mascara wraps each lash with a shock of rich black pigment with one side of the brush. One side separates, ‘stretches’ lashes to their lengthiest potential. All in a formula that stays put for hours, yet removes easily with warm water. Clinique Lash Power Lengthening Mascara lengthens and curls eyelashes without smudging or flaking. It resists sweat, humidity, and tears.