L\'Oreal Paris Preference Infinia 8.23 Shimmering Rose Gold Dye gives you up to 8 weeks of fade-defiant colour. Dazzling, fade-defiant colour with up to 100% grey coverage. L\'Oreal Paris Preference Infinia 8. 23 Shimmering Rose Gold Dye- a golden blonde shade. The pearlescent colour is flattering for all skin tones, and gives you 8 weeks of glamorous colour, easily blending away greys. Featuring for the first time a Colour Extender, which revives the look of day 1 colour with each application giving hair an intense colour resulting in an exceptional soft, glossy shine. The powerful direct dyes in the Colour Extender helps keep your colour more beautiful, for even longer.