What Colour Hair Dye Covers Red. Green cancels out red on hair that has been lifted to brown or light brown. To cover up red hair dye try washing your hair with a mixture made of shampoo and food coloring.
If this fails to neutralize the red to a satisfactory level use an ash brown semipermanent hair color. Add food coloring to shampoo. Always use cool ash colors to cover red hair color if you don t want to see any red tones peeking through.
Use a clarifying shampoo regularly to further tone down any red hues.
Red isn t one size fits all so it s important to keep your base color in mind. For grey coverage on red i strongly recommend a salon. To cover up red hair dye try washing your hair with a mixture made of shampoo and food coloring. Red isn t one size fits all so it s important to keep your base color in mind.