Set up your own digital colour
passport with the Colourstart app
Take a one-off hair colour allergy test, at home, using the clinically proven Colourstart Patch Test
Unlock the freedom of professional hair colour treatments with your digital Colourstart Passport™.
Find out why we recommend the Colourstart Passport™ hair colour allergy alert system.
See all these great brands who use Colourstart Passport™