If you want to dye your hair, one of the first things you should do is test your skin. You should do this 48 hours before colouring to ensure you do not react to the chemicals within the dye.
This is an even bigger concern for those with sensitive skin or certain allergies. Thankfully, if you do feel like changing up your look, there is an alternative hair dye for sensitive scalp problems.
I’m allergic to hair dye – what can I use?
The main allergen in high street hair dyes is...