Ultimate Blonde Neutralizing Spray is designed for colorists to use it as: - A pre-toner when trying to achieve cool blondes, silvers, grey or before an application of Keune Color Craving. - A standalone toner if you are just looking to take the raw edge off of freshly lightened hair. - As a refreshing service in the salon between color appointments. This Neutralizing Spray contains blue and violet pigments that will neutralize undesired warmth in the hair - it is most neutralizing at levels 9 and 10 and less neutralizing at a level 8. The final color application is to be applied directly on top of Neutralizing Spray. This product can also be used as a standalone toner. Because Neutralizing Spray was developed with direct dyes, the neutralization will have limited longevity. If you are not following up the Neutralizing Spray with an application of Semi or Tinta Color, Keune suggests the client purchase Silver Reflex Shampoo and/or Silver Reflex Conditioner to maintain his or her hair color between visits. Designed for IN-SALON USE ONLY.