Colourstart can show whether someone may be allergic to one of the ingredients, called PPD, used in hair colorants. Find here a step by step guide to how to use Colourstart and how Colourstart works.
Colourstart Passport is an online app that helps the user decide if Colourstart is suitable for them. Colourstart Passport can also store the user’s Colourstart test result for sharing with participating hair professionals, so making walk in colours possible.
You can get Colourstart from your hair or beauty professional.
You can register for a Trade Account to buy Colourstart.