Article last updated: October 15, 2024
Hc Orange No. 5, also known by its chemical name 1-[(2-Aminoethyl)amino]anthraquinone, monohydrochloride, is a synthetic dye primarily used in hair dyeing products. This vibrant orange dye is part of the anthraquinone family, a group of compounds known for their vivid colors and stability. The “Hc” in its name stands for “Hair Colorant,” indicating its primary function in the cosmetic industry.
The history of Hc Orange No. 5 in cosmetics dates back to the mid-20th century when synthetic dyes began to replace natural dyes due to their consistency, longevity, and wide range of colors. Over the years, it has become a staple in the formulation of hair dyes, particularly in products designed to achieve bright, bold hues.
The production of Hc Orange No. 5 involves a series of chemical reactions starting with anthraquinone, a naturally occurring compound found in some plants and fungi. Through a process of nitration, reduction, and amination, the anthraquinone is transformed into the vibrant orange dye. The final step involves the addition of hydrochloride to improve the dye’s solubility and stability, making it suitable for use in various hair dye formulations.
In this section, we will delve into the officially recognized cosmetic benefits and uses of Hc Orange No. 5:
Hc Orange No. 5 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, it helps achieve vibrant and long-lasting orange hues. This can be particularly beneficial for those looking to add a pop of color to their hair or to create unique, customized shades when mixed with other dyes.
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).
Regarding individuals who are pregnant or breastfeeding, data and research on the topical usage of Hc Orange No. 5 during pregnancy and breastfeeding are lacking. Therefore, it is recommended that they consult a healthcare professional for further advice.
While Hc Orange No. 5 is generally considered safe for use in hair dyeing products, there are potential side effects associated with its topical application. These may include:
Adverse reactions to Hc Orange No. 5 are relatively uncommon, but it is always prudent to perform a patch test before widespread usage to ensure you do not have an adverse reaction.
In terms of comedogenicity, Hc Orange No. 5 has a rating of 0, meaning it is considered non-comedogenic. This is beneficial for individuals prone to acne, blemishes, or breakouts, as it is unlikely to clog pores or exacerbate skin issues.
