What is it: The best of both worlds—this dual ended mascara features two favorite formulas for bold, long lashes and waterproof wear. You'll find Extreme Party Mascara on one end and No Smudge Mascara on the other (because two is better than one). Who is it for: Lash lovers who want instant volume, intense color and ultra-long lash length plus waterproof wear—all in one mascara tube. Why is it different: These fan-favorite formulas each provide their own lash-loving benefits: Extreme Party boasts a unique "reactivating” formula—enriched with lash conditioners and vitamins—so it remains flexible between coats and can be applied four times per day with 8-hour wear; while No Smudge works like a raincoat for lashes, making any mascara formula instantly waterproof (just by brushing it on). How do I use it: Use each formula separately or combine for bold, waterproof lashes. First, brush on Extreme Party from base of lashes to the tips. Next, apply No Smudge Mascara. If using No Smudge, remove with waterproof eye makeup remover.