About this service a root colour partial re colours some visible areas of the re growth area blending these areas to the rest of your hair with a solid colour this service includes the colour followed by a full blow dry not sure what colour service to book call us on 0113 359 3420 or email enquiriesallertonsonlinecom and we39ll help you decide note allertons takes the safety and comfort of all clients extremely seriously so an allergy test must be performed at least 48 hours b