Step #1 in the new High Bright system, this Blondage High Bright Pre-Shampoo Treatment preps hair with chelating agents to clarify before washing it. Made with a Vitamin C formula, this system brightens hair that has dulled, darkened, or mattified due to dulling agents and pollution. Get an instantly brighter blonde in one use when you use the entire High Bright system. What is the difference between Redken's Blondage Core and Blondage High Bright? The Blondage Core System is formulated with violet-pigmented toning technology for high level blondes looking to remove brass and neutralize orange or yellow tones. The new Blondage High Bright System is formulated by Vitamin C + Brightening Care Complex, which lifts brightness of blondes or highlights by removing impurities that darken, dull and mattify blonde hair for brighter results. Blondage High Bright is a haircare range designed for blondes (levels 7-10) looking to brighten hair that has dulled, darkened, or mattified due to dulling agents, pollution and buildup.Powered by Vitamin C, known for its brightening benefits in skincare, and Redken's Brightening Care Complex, this duo is formulated with chelators for instant results. A brighter blonde instantly A sealed cuticle & filled porosity to lock out dullness No peroxide needed Silky, conditioned, soft hair Apply to damp hair and leave on for 5-10 minutes.  Do not rinse.  Then, apply Blondage High Bright™ Shampoo; Lather and rinse. Follow with Blondage High Bright™ Conditioner.