Ammonia-free intensive color treatment provides up to 70% gray hair coverage, achieving a super trendy color result with perfect shine. When preparing L'Oreal Diarichesse, be sure to wear suitable gloves. The mixing ratio for the color cream is always 1:1.5. The contents of one tube of L'Oreal Diarichesse (50 ml) can be mixed with 75 ml of Diactivateur at 4.5%, 2.7%, or 1.8%. Further information on application is included in the instructions that come with each tube of L'Oreal Diarichesse.