The non-permanent colour gradually fades after ... So, you’ve used a semi-permanent hair dye and the good news is: you love the colour. Now the question remains: how can you keep semi-permanent ...

Background: Finding alternative hair dyes for individuals allergic to para-phenylenediamine (PPD) has been difficult. Newer permanent and demipermanent hair dyes that have replaced PPD with para ...

This type of hair colour is also non-damaging. Semi-permanent is designed to last for several washes. Semi-permanent dye is non-damaging since the colour molecules do not penetrate the hair shaft.