There are many factors that can accelerate the drying of hair while blow-drying with a brush. One of the most important is the choice of materials, which Olivia Garden selects with great care. An aluminum brush body retains heat particularly well, allowing it to be transferred directly to the hair during brushing, resulting in faster and gentler drying. Not only are the bristles designed to reduce the common "pulling" sensation in the hair, but the handle below the brush body is also seamlessly fixed to prevent hair from getting caught while combing.