YSL Mascara Volume Effet Faux Cils Shocking. Exaggerate your lashes with shocking volume from every angle! New and exclusive to YSL, the amplified helix brush with a twisted cut, provides instant excess volume on the lashes, with effortless application. Shaped and styled for excess, this slim brush breaks the rules of volume, allowing for perfect control and precision, combined with a beautifully creamy formula to cover each lash evenly, for a thick and lustrous fringe. , All skin types.