Ok, so I know I am a MAC girl. I'm a huge fan of their products, so it didn't surprise me when I came across this beauty of a brush! The MAC Duo Fibre Brush #187 is a brush that every girl absolutely needs in their makeup bag! It will change your life; well, at least the application of your makeup. I use this brush for foundation application; it puts the foundation on super evenly and smoothly; something a finger could never do! I also use this brush for powder application, because the lightness of the bristles gives a nice, even, powder application. MAC's brushes are certainly pricey, but makeup brushes are NOT something to be skimped on money-wise. They will last you forever, as long as you give them proper maintenance. MAC makes a really nice brush cleaner that smells amazing. It conditions the bristles so they stay fresh and last longer. When I run out of it, I use some moisturizer shampoo and warm water. It works like a charm! I highly recommend this brush; if you need to have ONE brush in your makeup bag, this is it! Don't hesitate because of the price; it will last you way longer than cheaper brushes!