Excell 10' is the first permanent hair colour from L’ Oreal that works in just 10 minutes. It provides rich colour & hair that feels stronger* – fast! Its patented formula develops faster than most classic permanent hair colourants, providing 100% grey coverage**, mirrorshine colour & cashmere touch. Excell 10 also helps fortify the hair, & has an optimised p H. The Easy Colour Comb allows an easy & precise application.* Used with conditioning balm. 71% agreed: tested on 319 women, strength measured as resistance to brushing.** Excludes shade 10