Health & Beauty > Hair > Hair Color.Brand : WELLA.Line : Koleston Xpress.Wella Koleston Xpress Permanent Hair Color, Medium Brown/Neutral,4/N.Get fast and fabulous color with Koleston Xpress, our express permanent color that provides up to 100% gray coverage in just 10 minutes. With Control-X Technology to help prevent over-processing for express yet reliable results, it's non-progressive color you can trust! The built-in Metal Purifier and ME+ Dye Technology help ensure true-to-tone color and protection from extra damage. Available in 13 shades across three tonal families (Neutral, Warm and Cool). For more information on ME+ Dye Technology, visit wella.com/kolestonperfect.With Control-X Technology to help prevent over-processingUp to 100% gray coverage in just 10 minutesIncludes Metal Purifier to help protect hair from extra damage happening in presence of metals wherever color is placedFeatures ME+ Dye Technology to reduce the risk of developin