Mason pearson pocket nylon n4 hairbrush cleans the hair stimulates the scalp increasing the blood flow to the roots a natural conditioning oil sebum comes from a gland at the base of every hair brushing spreads it along the length of the hair giving it strength suppleness and providing a healthy sheenr it has a combination of stiff nylon bristles and small compact size that easily works through the thickest hair the nylon bristles massage and stimulate the scalpr r unique rubber cushio