Round Brushes usually fall in the categories of "boar bristle," metal, or a "Cricket." When using any type of brush, you need to make sure the hair can pass through it without tangling before using a blow-dryer. This overview is just an introduction to round brushes. Choosing the right brush for you will require a consultation. Oily scalp versus dry scalp; thin hair versus thick hair; curly hair versus straighter hair are all factors to consider. If you have straight roots when the hair is wet, then a rough dry with your hands to get 80% of the water out and to add volume at the roots may be necessary before any round brushing begins. Curly roots need to be less dry to avoid setting the curls. Paddle brushes or Denman brushes may be needed for curlier hair versus the round brush. I will discuss other brushes in a future article. Stay tuned.
The metal round brush acts like a "curling iron." The metal heats up from the blow dryer heat. The metal brushes deliver the sleekest looks. Look for metal round brushes with short bristles versus long. I was taught longer bristle brushes can get caught in the hair.
Boar bristle brushes are known for both "cleansing the hair" and "distributing the natural oils from the scalp." Boar bristle brushes do not have to be round, but always look for "first cut" boar bristle brushes. The "Marilyn" and the "Monroe" brands of round brushes are the leading brands for boar bristle brushes. The "first cut" boar bristles should have a rounder tip (taken from the bulb) and should feel softer.
The "Cricket" brush is considered static-free and great for areas that you want to hold taut (tight) while blowdrying straight such as your hairline. These brushes have rounded tips and lengthy bristles so carefully not to get the brush caught in the hair.
Again, this is an overview on round brushes. I will be discussing blow dryers, leave-in conditioners, etc in a separate upcoming article. There is enough information in this article to get you started on the right track with your own research for your own hair type.