The best type of dry brushes have natural, soft bristles for gentle exfoliation. Look for a long handle for easy reach and a hand strap for focused brushing. If you have sensitive skin, then go for a brush with softer bristles.The best type of dry brushes have natural, soft bristles for gentle exfoliation. Look for a long handle for easy reach and a hand strap for focused brushing. If you have sensitive skin, then go for a brush with softer bristles.