How to Prevent Hair Color from Bleeding: 11 Steps (with ...
Aug 16, 2020·Use conditioner to keep color dyes from bleeding onto lighter hair. During the dyeing process, coat lighter hair in conditioner to protect it. The conditioner will act as a shield when you rinse the dye itself out, lessening the unwanted contact that the dye has with your hair. Another option is to cover the dyed sections with foil or plastic.