By carefully answering a simple set of questions, Colourstart Passport can help you decide if Colourstart is suitable for you to use. Your answers may also help you make an informed decision on whether you should avoid hair colour. Colourstart Passport stores the answers to your questions and also any pictures you have taken of your test result.
This can be helpful to share with your hairdresser, beauty therapist or barber for future reference to avoid potentially unnecessary retesting. Colourstart Passport can be shared with any participating hair professional.
Version history
1.2
2022-05-06
Improves compatibility for Universal Links. App Store information also improved.