When colouring hair extensions the first and most important consideration is whether you have human hair or synthetic hair.
Colouring synthetic hair (as well as using heat on this type of hair) simply won’t work.
If you have human hair, it is possible to colour your hair if necessary. Please note: Your best option is to avoid colouring by matching the hair extensions to your natural colour or as close as possible. However, this is not always possible. When choosing a colour from your extension supplier, try to choose a lighter shade and then colour the extensions darker. This is less damaging to the hair than lightening the hair extensions.
