Balmain Brush Round Large is suited with a ceramic coating that emits negative ions. Hair has a natural positive charge that repels hair strands from each other and thereby causing frizz or flyaway hair. The negative ions that the Balmain Hair Ceramic Brushes emit close off the hair cuticles and lock in moisture to the hair strands; this gives the hair a shiny and healthy look. The ceramic also heats up quickly, evenly and retains heat longer which ensures a better curl as the heat shapes the hair. Blasting with a cool air setting you get a perfectly formed curl that holds.