Yes, KOLORA contains ammonia. This ensures perfect coverage of white hairs which is hard to achieve with ammonia-free hair colour formula.
Do not wash your hair the day you intend to do the colouring. Experts recommend that you wait 24 to 48 hours after washing the hair before applying hair dye. Freshly washed hair is devoid of fat, which helps to facilitate absorption of hair dye.
As with most hair colours, it depends on the length and thickness of your hair. KOLORA is supplied in 60 ml pack, sufficient for colouring of even longer and thicker hair.