No ammonia means monoethanolamine. Please read our message board further to investigate this chemical. Try the medium ash brown. ALWAYS do a test strand and an allergy test according to the kit directions before applying any new color to your entire head. Also read the instructions on how to color previously colored ends. Never apply the color full strength through previously colored ends. Full strength means"equal parts color and developer".You should apply a diluted formula through the ends..according to the kit instructions. Also what shampoo are you using? This may be encouraging fadage.
