John Gregory
More ideas from John
Credit: National Physics Laboratory These images show the difference between natural (left) and heavily bleached hair (right). On the untreated hair you can see layers, called cuticles, separated by steps like overlapping roof tiles. Bleaching erases these steps, damaging the hair and leaving behind a rough surface

Credit: National Physics Laboratory These images show the difference between natural (left) and heavily bleached hair (right). On the untreated hair you can see layers, called cuticles, separated by steps like overlapping roof tiles. Bleaching erases these steps, damaging the hair and leaving behind a rough surface