Tag Archives: home hair dye

How to do a 2 part Patch Test – L’Oreal Excellence

This is a how to do a patch test using both the colourant and developer. It is advised by Allergy UK  that if you are using a 2 part hair dye – then you should perform a skin allergy patch … Continue reading

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How to do a Skin Allergy Patch Test – L’Oreal Excellence

The patch test described in the L’Oreal Excellence instructions say to only use the colourant part of the hair dye as it contains the para-phenylenediamine (PPD). A small disclaimer – The photos used are of my arm. At the time I … Continue reading

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