Do I need a colour allergy test? I have had colour before.

Your health and well-being is a priority.
A mild reaction to hair dye in a client usually presents as an itchy dry rash on the upper eyelids (see eyelid dermatitis) and/or the rims of the ears.
More severe reactions cause marked reddening, blistering and swelling of the eyelids, scalp, face and neck.
If any symptoms are present from a previous colour, you need an allergy test 24 hours before your next colour.

Some people already have or can develop an allergic reaction to hair colour products which can result in hospitalisation.
This precautionary measure helps ensure that we can safely apply Schwarzkopf Professional colour to your hair without the risk of a reaction.
For more information go to https://www.dermnetnz.org/topics/allergy-to-paraphenylenediamine/