Awasome Deep Conditioning Hair Before Coloring References. Web a major part of how to prep your hair for dye is using a hydrating wear mask or deep conditioning your hair. Web a hair treatment, such as a hair mask or deep conditioner, will help to add moisture and strength to your hair.

This will help the dye to penetrate your hair shafts. Not at least a couple of days before you are coloring your hair. This is because deep conditioning can help lock in the color and.