Colourstart is a reliable sensitivity indicator and will let you know if you are hyper-sensitive to PPD –
This is useful if you are unable or don’t have the time to come to the salon to have your free allergy test.
It is a simple standardised procedure.
Your allergy test needs to be carried out at least 48 hours prior to having your colour.
Colourstart needs to be removed before any colour application.
NOTE: DO NOT PERFORM AN ALLERGY TEST IF YOU HAVE HAD A PREVIOUS REACTION TO HAIR DYE OR IF YOU HAVE A BLACK “HENNA” TATTOO.