How to dye thick hair

If you have thick hair strands, it is more difficult to have it coloured because colour pigments cannot build in the hair as easy and the result could be lighter than desired. It is worth going for ½ or 1 colour nr. darker hair dye and leaving it on your hair for a longer period of  time.  

How to dye thin hair

It is easier to change the colour of thin hair strands so I suggest that you should buy ½ or 1 colour nr. lighter hair dye to achieve the desired hair colour.