Article last updated: October 15, 2024
N,N’-Bis(2-Hydroxyethyl)-2-Nitro-P-Phenylenediamine, also known by its more chemistry-savvy name 2,2′-[(2-Nitro-1,4-phenylene)diimino]bisethanol, is a synthetic compound primarily used in hair dyeing products. This ingredient is a member of the phenylenediamine family, which is well-known for its role in permanent hair coloring formulations.
The history of N,N’-Bis(2-Hydroxyethyl)-2-Nitro-P-Phenylenediamine in cosmetics dates back to the early developments in synthetic dyes. As the beauty industry evolved, there was a growing demand for more vibrant and long-lasting hair colors. This led to the exploration and eventual adoption of various chemical compounds, including our featured ingredient, which offered reliable and consistent results.
In terms of its chemical composition, N,N’-Bis(2-Hydroxyethyl)-2-Nitro-P-Phenylenediamine is characterized by the presence of nitro and hydroxyl groups attached to a phenylenediamine core. This specific structure allows it to effectively penetrate the hair shaft and bind to the hair’s natural keratin, resulting in a durable and vivid color.
The manufacturing process of this ingredient involves several steps of chemical synthesis. It typically starts with the nitration of a phenylenediamine derivative, followed by a series of reactions that introduce the hydroxyethyl groups. The final product is then purified to ensure it meets the stringent quality standards required for cosmetic use. This meticulous process ensures that the ingredient is safe and effective for consumers looking to achieve their desired hair color.
In this section, we will delve into the officially recognized cosmetic benefits and uses of N,N’-Bis(2-Hydroxyethyl)-2-Nitro-P-Phenylenediamine:
N,N’-Bis(2-Hydroxyethyl)-2-Nitro-P-Phenylenediamine is primarily used as a hair dyeing agent. This means that its main function is to impart color to the hair. When included in hair dye formulations, this ingredient helps to achieve a wide range of hair colors, from natural shades to more vibrant and bold hues. It works by penetrating the hair shaft and reacting with other chemicals in the dye formula to produce the desired color. This makes it a valuable component in both permanent and semi-permanent hair dyes, allowing users to change or enhance their hair color effectively.
Note: the listed benefits above are exclusively based on the officially recognized and defined functions of the ingredient, as documented by the International Nomenclature of Cosmetic Ingredients (INCI).
N,N’-Bis(2-Hydroxyethyl)-2-Nitro-P-Phenylenediamine is generally considered safe for use in hair dyeing products, but like any cosmetic ingredient, it may cause side effects in some individuals. Here are some potential side effects of topical application:
Regarding individuals who are pregnant or breastfeeding, data and research on the topical usage of N,N’-Bis(2-Hydroxyethyl)-2-Nitro-P-Phenylenediamine during pregnancy are lacking. Therefore, it is advisable for these individuals to consult a healthcare professional for further advice before using products containing this ingredient.
Adverse reactions to this ingredient are relatively uncommon, but they can occur. To minimize the risk of an adverse reaction, it is recommended to conduct a patch test before widespread usage.
The comedogenicity of N,N’-Bis(2-Hydroxyethyl)-2-Nitro-P-Phenylenediamine is rated at 1 on a scale of 0 to 5, where 0 is totally non-comedogenic and 5 is highly comedogenic. This low rating means that it is unlikely to clog pores and cause acne or blemishes, making it suitable for individuals prone to breakouts.
