I have an obsession with makeup brushes. As a result of this I have loads in my collection. However, there are a few brushes that I use every time I do my makeup.
For foundation I don't use anything else apart from the Buffing Brush from Real Techniques. You can get this from the Core Collection. I have a lot of Real Techniques brushes bceause they are so good and the Buffing Brush is no exception.
Also from the Core Collection by Real Techniques is the Contour Brush. I don't use this for contour I actually use it to blend in concealer. I love this brush because it fits really nicely under my eyes and like all Real Techniques brushes it is so soft.
The main brands of makeup brushes I use are Real Techniques (obviously) and Avon. However, I have one brush from Spectrum which I use for highlighter and I love it. Spectrum brushes are so beautiful and so soft. I only have one in my collection and that definitely needs to change.