I was given these as a Christmas present and I use them all. The foundation brush was a little small for my foundation so I use it for concealer instead(which it works great for!). The contour brush is great for doing contour and blush. It is peaked it the end to get a sharp line which you can then blend out. The small eye shadow brush it quite stiff so I use mine for gel liner. The powder brush( the name has ribbed off:() is great fir blending contour out, and putting on light blush. The brushes have many uses and are amazing!!
Good for your collection
I'm placing the most abused brushes to the least abused
Buffing brush: *I love using the buffing brush for liquid foundation application it applies foundation quick beautiful perfect it blends it out and it's perfect no streaks. The brush doesn't shed and it's literally perfect and gives an airbrushed effect.
Contour brush: I love this brush so much it fits in the hollows of your cheeks and perfect for a contour/highlight application and has great blending abilities, no cons what so ever.
Detailer brush: If it was a tad bit bigger it would provide more use but it is a Detailer brush after all, it's great for getting I to the corners of the eyes and concealing special hard to get blemishes I don't use this brush much personally.
"Foundation brush" I'm confused by this brush it's to flat and small to be a foundation brush, I've used this for concealing under the eyes and it's okay and do able for that.
I don't use the whole set, but love RT brushes! I like to use the Contour brush as a blush brush!
I don't use every brush in the set- partly because I prefer to use a beauty sponge for foundation, and partly because I haven't found a use for the others, but I do like the brush that is labeled as a Contour brush. I use this brush as a precision blush blush. I like the RT Blush brush but find myself reaching for the Contour brush because its smaller and more precise. All in all, love the RT brushes. I would be delighted if they added more brushes to their collection and made them available at ALL WalMarts, Targets and drugstores! For such a reasonable price point I wish I could find them outside of Ulta or online.