The world of makeup brushes can be a difficult one to navigate. Are all fluffy brushes powder appropriate? Do you really need a lip brush? What's the difference between a stippling brush and a foundation brush? It's enough to make your head spin. But, as always, we're here for you. We've broken down some of the more popular brush options (and a few you may not have heard of), and we're telling you which is which. So take a deep breath, and scroll on!