Dia light – Acidic pH Gloss Color is the perfect second step for any professional bleaching service, as it neutralizes warm undertones after lightening and restores beauty to bleached hair. Its ammonia-free gel-cream formula with an acidic pH revives color by neutralizing unwanted reflections, preserving the hair cuticle*, and nourishing it for brilliant color. Hair is 30% more nourished and less dry for up to 14 shampoos**

*Instrumental test after multiple applications with Dia light vs. oxidation coloring
** Instrumental test vs. untreated hair