Color is less likely to "bleed": With balayage, colorists use a barrier concerning their sections to avoid the layers of bleach from touching. "The benefit of applying cotton or saran wrap in between sections is to prevent the lightener from bleeding, which could make a blotchy dye task," Cassanova suggests. https://balayage48946.blogthisbiz.com/37973971/considerations-to-know-about-foilyage-hair-technique