Hair dye contains many harsh chemicals and ingredients that we are not typically exposed to in everyday life. Paraphenylenediamine (PPD) is a common ingredient and allergen found in permanent hair dyes. A patch test will confirm or rule out sensitivity to PPD. If you are allergic to PPD, it is best to avoid using hair dyes that contain the ingredient. Opt for semi-permanent hair color that contains little to no PPD.
Allergens in hair dye can cause dryness and irritation in your scalp, leading to more dandruff. If you plan on dying your hair, it is recommended that you conduct a patch test to see if you are allergic to the ingredients in your hair dye. If you are dying your hair at home, there will be instructions on the box that tell you how to conduct a patch test. If you are going to a hairdresser, ask your hairdresser to conduct a patch test for you.
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