Temporary dyes tend to wash out after one shampoo. [1] X Research source Semi-permanent dyes will wash out after 20 to 26 shampoos. Permanent dyes may fade, but they usually stay in your hair until it grows out.

You may need to bleach your hair to highlight it, which is best done in a salon.

In other words, you should have three sections in the front of your head, and two in the back.

This method creates more defined highlights and lowlights.

The weaving method produces less defined, more natural-looking highlights and lowlights.

It’s a good idea to start in the back and work your way forward, because the hair at the back of your head is typically harder to lighten. [6] X Expert Source Martin NeptonProfessional Hair Stylist Expert Interview. 17 November 2020.

Highlighting means coloring strands lighter than your natural hair color while low lighting means coloring strands darker than your natural color.

You can leave the hair for now as you continue to apply foils/dye. You will fold up the foils when you’re done with the section.

The foil will conduct the heat from your scalp, which will help the dye work faster. [13] X Expert Source Martin NeptonProfessional Hair Stylist Expert Interview. 17 November 2020.

Remember, you may have to bleach your hair first in the sections you’re highlighting. This is usually best done at a salon and should be done before you start the highlight/lowlight process.

It is totally natural to have a whole lot of color run in the shower. Do not panic if this happens. It does not mean your hair did not dye properly. It’s a normal part of the process.