Mason pearson brush cb4 fine bristle dark ruby cleans the hair while stimulating the scalp and increasing blood flow to the roots sebum which is a natural conditioning oil comes from a gland at the base of every hair follicle and brushing will help to spread it along the length of the hair in order to give it strength and suppleness while providing a healthy sheen it is ideal for children aged between 3 and 6 it is comprised of 5 rings of tufts of carefully selected pure boar bristles whic