Having a grey hair problem? Try applying grey hair chalk or braid a section of your hair with colourful threads, says an expert. Aashmeen Munjaal, make-up expert and director of Star Salon n' Academy has rolled out easy tips to hide grey hair. Hair chalk: You can apply hair chalk as it is easily available and you will get stylish and colourful hair. Hair chalks are not harmful for hair as it is an instant application to hide your grey hair.