Permanent Hair Dyes

If you have very light hair, you probably won't get black or fiery red hair after one colouring session. Perhaps you need to find a shade in-between first.

Also bear in mind that you can never go lighter with permanent hair colour. To go lighter, you need to lighten your hair with bleach.

Sometimes it can be a little difficult to know what the products' numbers mean. For best result check out this guide of what those numbers really tell you about the nuance of the box in your hand....

If you have long hair, buy one packet more than you think you will need, just in case – there’s nothing sadder than standing there with half your hair smeared and realising that you do not have enough. There is a risk that you will get a patchy result. If you shop online, it is always possible to return unused and unopened products within 14 days, sometimes longer – check the return policy for the online store that you buy from.