Dr Kristina Vanoosthuyze studies the shaving habits of 80 men every day using high-speed cameras at Gillette 's Innovation Centre in Reading . Her footage reveals what happens as multi-blade razors move over hairs . Scanning electron microscopy shows difference between dry and wet skin . The Gillette scientist has also revealed the do 's and don'ts of shaving . A new study by a team from Oxford University found that women who shave more often have lower levels of testosterone than those with less frequent shaves. Tests have shown people should start by shaving in direction of the hair . And razors should never be tapped on a sink under any circumstances .
Dr Kristina Vanoosthuyze studies the shaving habits of 80 men every day using high-speed cameras at Gillette 's Innovation Centre in Reading . Her footage reveals what happens as multi-blade razors move over hairs . Scanning electron microscopy shows difference between dry and wet skin . The Gillette scientist has also revealed the do 's and don'ts of shaving . She recommends people shower before a shave , and use light strokes . Tests have shown people should start by shaving in direction of the hair . And razors should never be tapped on a sink under any circumstances .