Redken's Acidic colour Gloss Conditioner intensly conditions and hydrates hair while providing long-lasting colour protection and shine on salon treated hair. Acidic colour Gloss Shampoo and Conditioner used as a routine protect colour vibrancy and shine for up to 32 washes*. The acidic pH formula locks in shine, delivering 72% shinier hair in 1 use**. Complete your gloss hair care routine Acidic Gloss Leave-In Heat Protection Treatment. *Self-perception analysis, 51 haidressers, after 32 applications of the shampoo + conditioner on coloured hair **Instrumental test after application of the acidic colour gloss shampoo & conditioner vs. unwashed hair