Get to the root
Why do you want to colour your hair? Indulging in colour for fun is very different from seeking colour to cover ungainly strands of grey. The basic need must determine the kind of colour and coverage you eventually get.
The texture and condition of your hair is an important factor to consider when choosing hair colour. Damaged hair may seem a major obstacle in getting tinted tresses, but the right products and prepping are sure problem-solvers. Using superior quality hair colourants is essential for damaged hair. Speak to your stylist about choosing a brand suitable for your hair type.
Also, remember to check the list of ingredients and make sure you are not allergic to any of those.