What it is:An ultragentle styling brush that is ideal for fragile hair.What it does:Sephora Hair Brushes Boar Round Brush is designed to create volume and shine and maximize control for lasting results. This next-generation tool is perfect for the woman who wants to achieve lasting, lustrous mane magnificence sans the damage. 100 percent boar bristles care effectively for even the most fragile hair, minimizing breakage and enhancing health.What else you need to know:This advanced haircare essential harnesses the power of tourmaline to deliver spectacular results. The bristles release negative ions on contact with hair. The ions penetrate the core of the hair shaft, canceling static and frizz and turning up the shine factor. The ceramic head rapidly and evenly diffuses heat without burning the hair, so you can keep the dryer on the hair for longer, giving longer-lasting style. A comfortable silicone grip makes for simple, easy use.