Louise Hunter, a model for the Sens.us competition that saw her win the ambassadorship for the brand as a prize, has inspired plenty of people to start dying their hair. As a result, it should not be all that surprising that allergic reactions to hair dyes are also increasing. This may also be because users are not aware of the risks an hairdressers are nonchalantly not telling them either.
Patch tests are simply not carried out by most hairdressers even though it would protect their liability if they were. This is because a patch test takes time and most hairdressers and clients do not want to wait the allotted period of time. It seems like a safe bet to say that most people at home who use a pharmacy kit also do not wait enough time.
However, manufacturers stick by their claim that a skin test should be conducted every time so that you can rest assured it is safe to use the produce before your hair is covered in sticky dye.
Despite even this warning, Louise Hunter stated that most hairdressers only think that a client needs to be tested the first time they dye their hair. She explained that she just finished setting up a salon that only uses hair colouring products that are completely natural and that there are many clients coming in that have never been tested.
She went on to say that it is important to be tested because you can start to have reactions at any age even if you have been dying and colouring your hair for years. The culprit behind most reactions is paraphenylenediamine (PDP) which is what makes hair colour permanent but in many cases will cause a reaction in those sensitive to it.