For an enviable blonde finish, Keune's Ultimate Blonde Neutralizing Spray offers colourists a quick and easy solution to eliminating unwanted brassiness from the hair. This blonde toning spray contains blue and violet pigments to strip away warm, yellow tones to reveal cool, ashy shades.     Its Silk Protein base boosts condition and shine, increasing the hair's manageability. Neutralizing Spray can be used as a pre-toner before Keune Color applications, or as a stand-alone toner to take the edge off freshly lightened hair.