Lash Sensational Sky High Tinted Primer Lash Serum, Maybelline's 1st tinted primer for extreme length + care. Sky High impact amplified. This length and volume mascara primer serum lengthens, thickens, and cares for lashes. This mascara serum primer is infused with Ceramide and Vitamin B5 which conditions lashes that feel softer after 4 weeks of daily use. When worn with mascara, 90% saw ultra-lengthened lashes. Up to 1.5x the volume vs. Sky High washable mascara alone.