Bleeding Hair Color
Q: After dying hair blonde and adding pink streaks, how do I stop the pink from bleeding into the blonde after a day or two of washing? Is there a product that will lock in different colors?
I can also recommend that you use a clear color-gloss product to help seal in the color applied. The product works in the same way a deposit-only color works except that it adds colorless glossing agents to the hair which help to seal the hair and make it extremely shiny. This should help to seal in the color you have applied and make the hair less porous.
You may need to make sure to isolate the colored hair and clean up any color bleed before you apply the clear gloss product otherwise, you may end up sealing in the bleed as well.
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Hair coloring and bleaching
How to stop hair color staining
Is it normal that some dye came out when I washed my hair?