Isabelle Lowe had dyed her hair several times in the past and never experienced a reaction, but that all changed when she used an at-home box dye.

Background: Finding alternative hair dyes for individuals allergic to para-phenylenediamine (PPD) has been difficult. Newer permanent and demipermanent hair dyes that have replaced PPD with para ...

The chemical paraphenylenediamine, or PPD, which is commonly found in permanent darker-toned hair dyes, is often the culprit behind allergic reactions that can occur from coloring your hair.

Hair dyes contain chemicals that in rare cases can cause severe, even life-threatening, allergic reactions. Hair dye manufacturers say they are not intended for anyone under the age of 16.

Patients who are allergic to PPD but test negative for allergy to PTDS will very likely tolerate the newer permanent and demipermanent PPD-free hair-dye products based on PTDS. Although patients ...