How to brush your hair
Long before there were chemical products available to make hair shiny, it was known that using a pure-bristle brush would have the same effect, explains Mr Cosby. This is where the ‘100 strokes a night’ rule came from—the texture of bristle (it looks as if it’s made of fish scales under a microscope) enables it to distribute the natural oil in the scalp (sebum) along the hairs.
Start with the ends, says Mr Pearson, as if you were brushing a horse’s tail—if you start from the top, the hairs will snag. Then, go three or four inches up, ‘stroking the brush through, working the oil along the length of the hair’. ‘You need to do it thoroughly,’ he continues. ‘It could be 10 strokes or even 50, but it doesn’t need to be 100—although, if you can siton your hair…’