Perhaps the best thing about Charm is that Sophie is always working on improving her brushes. She's super OC about making them better than the last batch, which means that you can really see the improvement whenever she comes out with something new! For instance, the Retractable Powder and Blush Brushes are considerably softer than her original synthetic collection; the bristles are somehow thinner and finer.
These new brushes are super dense but still pliable enough not to eat all of the makeup you would rather have on your face. I also like the case mechanism - the retracting cover ensures that the bristles won't get mangled whenever you open or close the cap. It closes tightly so you don't have to worry about it floating in your bag and leaving the precious brush head unprotected. ;) Overall, these brushes have really good case to go with the quality of the bristles.
So wait, how do these brushes work to begin with? Here's a quick guide!