Redken Color Extend Blondage Purple Shampoo 33.8 oz. Color Extend Blondage Shampoo is a color-depositing and protecting shampoo for blonde hair. This shampoo features citric acid to repair each hair from the core and pure violet pigments to remove unwanted brassiness to leave your blonde hair color cool and bright. Color protecting shampoo for blondes Gently cleanses and adds softness Repairs and strengthens hair from the core