Hair can really take a beating when you colour it constantly. This is especially true if you have a colour applied on a regular basis and also if you decide to change it regularly. Choose a semi-permanent colour if you want to be as kind to your hair as possible.
Your hairdresser will be able to advise you further on how to look after a semi-permanent colour. The downside is that they aren’t going to last as long so they will require more care if you want to keep them looking good. Choose a shampoo and conditioner that are specially formulated for coloured hair and cover your hair up when you are outdoors in the sun.
Semi-permanent or temporary colours will also allow you to decide on whether you like a colour before you have it put on permanently. Play around with some shades to see what suits you and your hairstyle.