Loreal preference mousse absolue is the 1st reusable permanent hair colour mousse absolue is reusable ready to use and delivers multi tonal flawless colour at the touch of a button the unique two chamber system freshly combines your colour diffusing a rich non drip mousse for a precise and easy application mousse absolues reusable system allows you to apply colour all over your hair touch up roots or even target stray greys perfect grey coverage