New health and safety guidelines state that 48 hours before your colour application a skin allergy test must be carried out. This applies if you are a new client or if it has been 12 months or more since I last coloured your hair. This is because an allergy can develop suddenly, even though you may have previously applied any other colourant. Once you have had your test I will keep it on record for you. Without a skin allergy test we cannot perform your colour service.