NEW Carded L'Oreal Voluminous Butterfly Sculpt. Now, a longtime makeup artist secret is revealed: Tight lining. What is it? Lining the upper lash line to create the illusion of fuller lashes and more defined eyes. Now there's a mascara that does it for you. Voluminous Butterfly Sculpt. for an intense tight-line effect at the roots and fanned out volume at the tips. Its smaller and tighter bristles come as close as possible to the lash line filling in between the roots to deposit maximum. Volume for a no gap tight-liner effect.