Make sure that you get a gloss and not a glaze. They sound similar, but are actually pretty different. A gloss is more permanent and helps adjust tone, whereas glaze doesn’t. [5] X Research source
You can apply the gloss just to your roots, but it would be safer to apply it to the rest of your hair.
You may want to cover your hair with a plastic shower cap while the gloss processes, particularly if you plan to sit under a steamer or dryer.
This method is recommended for those who bleached their hair, and hot roots. Be aware that this method will also tone the rest of your hair as well. If you can’t find a toning shampoo, make your own by stirring a few drops of dark blue or purple dye into white conditioner. You want violet/lavender color. [15] X Research source
Using hot water is important as it will open up the hair shaft. This will make it easier for the hair to absorb the color in the shampoo. [16] X Research source
You can leave the shampoo on for up to an hour. If you need to step out of the shower, tuck your hair under a shower cap. [18] X Research source
Using cool water will help seal the hair shaft and lock in the color. It will also help make your hair shiny and smooth. [19] X Research source
If you bleached your hair all over, they might be a light orange color.
Avoid going too light. Choose something that is 1 or 2 shades lighter than your natural color. [24] X Research source
It would be even better if you applied the color to your roots during the last 5 minutes of processing time. [26] X Research source
If you are touching up light-colored roots to match a darker dye job, you don’t have to worry about hot roots.
