Any Hair Dye That Gets On The Vaseline Can Be Easily Washed Out
Nobody wants to be the person who tries to do their own hair coloring at home and winds up with patches of dye all over their face instead of the desired results. To avoid this hair faux pas, apply a thick layer of vaseline to the area around your hairline (including your ears and neck) before beginning to color your hair. This will protect the skin from the dye.
Any errant hair dye will instead be absorbed by the vaseline, which may then be easily removed by rinsing with water and washing your hands. This will prevent the colour from being absorbed into your skin. Because of this, the color of your hair will not transfer onto your skin.