A perfect product for those who are tired of going to hair salons for hair colouring. GOLDWELL - TOP CHIC DEVELOPER LOTION 9% will make your hair extremely soft and shiny. After using this developer lotion, your newly coloured hair will give you a more attractive look than you expected. It does cause any allergic reaction. No harmful side effects on your skin. It will keep your hair soft. You should use this because other bleaching products might make your hair extremely dry and rough. Suitable for all types of hair.