Complex sentence: A flat brush is normally used for detangling hair, for example after sleep or showering; a round brush for styling and curling hair, especially by a professional stylist, and with a blowdryer.
Split into simpler sentences: A flat brush is normally used for detangling hair, for example after sleep or showering. A round brush can be used for styling and curling hair, especially by a professional stylist, often with a blowdryer.