This is the mascara I am currently using along with L'Oreal Paris' Double Lash Extender primer (just the primer end of that product) as a base. I have problem very thin lashes but they are very long and Maybelline Colossol Volume Express Mascara really helps to give the appearance of thickness without clumping, spiderlegs or globs at the tips of the lashes, but still defining my lashes. Albeit I am 'cheating' in the sense that I am using another product underneath to fatten things up even more. But this is the best combo I have found to help my desperate situation. LOL. Love this stuff because I have tried other mascaras with the primer and not gotten the same great results.