L'oreal Paris Preference Gives You Bold Luminous Colour Full Of Reflects That Lasts Up To 8 Weeks. 100% Grey Coverage. Discover The Unique Shades Of Preference With Light-Reflecing Dyes For A More Luminous Colour. The Translucent Gel Formula Associated With The New Shine Oil Gives Your Hair A Colour With Luminous Reflects And Intensifies The Natural Nuances Of Your Hair Colour. The Shine Protect Conditioner Is Enriched With A Uv Filter And Vitamin E To Preserve Your Shine And Colour For Up To 8 Weeks.