It does what it says, coats my lashes in a thick black enamel-like formula and makes them extra noticeable and long. Holds a curl extremely well and is very easy to take off. The brush is a very interesting concept as it is actually like a flat two sided comb, one edge which is finer and the other one coarser to apply and separate the mascara on your lashes. The formula is very wet at first so be careful not to blink, but it dries wonderfully after a while. It is a bit more expensive that I would like, however it works very well.