Normally I am a huge fan of e.l.f cosmetics because I love a bargain and some of their stuff is great! However, I found the e.l.f Regular & Waterproof Mascara Duo to be an awful product. First off, never use waterproof mascara because it ruins your lashes! I found that this did nothing to my eyelashes other than color them from their normal dark brown to a black color. This did not lengthen my eyelashes or volumize them. I had to buy another brand and tossed this in the trash. You get what you pay for!