What Is P-phenylenediamine? P-phenylenediamine or PPD is an ingredient used in hair dye products. It is used as the coloring agent in most hair dyes. It is also sometimes used in temporary tattoos. When used in boxed dyes it is mixed with an oxidizing ingredient. Unfortunately when oxidized PPD can cause allergic reactions for those who experience PPD allergies. An allergy to hair dye, while ...
p-Phenylenediamine (PPD) is an organic compound with the formula C 6 H 4 (NH 2) 2. This derivative of aniline is a white solid, but samples can darken due to air oxidation. [1] It is mainly used as a component of engineering polymers and composites like kevlar. It is also an ingredient in hair dyes and is occasionally used as a substitute for henna.
What is Phenylenediamine? Also known as paraphenylenediamine, p-phenylenediamine, or 1,4-benzenediamine, PPD is an organic compound used in hair dyes, as well as in rubber chemicals, textile dyes and pigments. Manufacturers like it because it has a low relative toxicity level, high temperature stability, and chemical and electrical resistance.
Consumers encounter p-phenylenediamine in many forms of permanent hair dyes called oxidative dyes. As a known skin sensitizer, it leads to allergic reactions. P-phenylenediamine, as well as the products of its reactions with hydrogen, can alter the genetic material of cells.
This article explains how p-phenylenediamine (PPD) is used in permanent hair dyes, its health risks, including allergies and rare links to cancer, and the regulatory landscape. It highlights that ...
p-Phenylenediamine is an ingredient widely used in hair dyes; associated with allergic reactions. Common concerns See how this product scores for common concerns.