I use it almost every day because it is easy to apply [SEP] I have long, dark lashes, but they lack a little in volume. I tried this mascara because it is very difficult to find a paraben-free waterproof that does not smudge - this fits the bill. I use it almost every day because it is easy to apply, gives me thicker lashes with one coat (I rarely even wear eyeliner because I don't need to with this product), and most importantly it is waterproof, smudgeproof, sweatproof - this stuff survives TRX workouts, crying, and wiping, and I've never had it flake.