I bought this brush when I took my first foray into the land of MAC. The artist who did my face that day used it to do my brows and my eye liner. I decided right then and there to buy it, even though it was way overpriced.

This brush has multiple uses. As mentioned above, it works great to fill in brows with wet or dry powder, or even a more waxy brow filler. It's somewhat stiff, although not overly so, and can be even wiped over the top of a soft shadow crayon to apply it as a liner.

I regularly use this to apply gel liner, top and bottom, as well as MACs Liquidlast Liner. While the linr itself has spectacular staying power and does not come off under any circumstances, I'm not a big fan of the brush that comes with it as it doesn't give me as much control as I'd like. You've got to have a dead on steady hand with it because it is very hard to get off once on the skin. Mistakes are not so easy to correct.

If you're into fantasy makeup, this brush can be used in many ways to get really nice thin lines with great curves in them and even thinner, angled lines with a bit more width.

I suppose you could also use it as a lip brush in a pinch, but I'm quite sure it wasn't meant for that. Because of the angle and the stiffness of the bristles, it would probably work quite well to get a precise edge with your lip liner.

Definitely a must have brush. It is overpriced, like most things MAC, but it is a brush you will use for many years to come. If you can find one similar to this in a craft store for a fraction of the price, definitely pick it up.