Wella Color Touch Demi-Permanent Dyes Give your clients the best demi-permanent results with the professional favourite, Wella Color Touch collection. Boasting a huge selection of gorgeous blondes, brunettes and reds, Wella Color Touch is ideal for those clients who prefer to change their tone more regularly. Hair is protected thanks to this creamy, ammonia-free formula and left significantly smoother and shinier while ensuring incredible grey coverage and even enhancing the hair's colour pigment. For best results, mix with Wella Color Touch Plus developer.