Back to Ingredient Dictionary

HC VIOLET NO. 2

Description

HC Violet No. 2, also known as Basic Violet 2, is a synthetic hair dye molecule widely used in semi-permanent and temporary hair coloring products. This water-soluble compound belongs to the family of triarylmethane dyes and is characterized by its vibrant purple hue. HC Violet No. 2 is particularly effective in imparting a cool, violet tone to pre-lightened or naturally light hair.

The dye molecule works by penetrating the hair shaft and depositing color without significantly altering the hair's structure. It is non-oxidative, meaning it does not require a developer to activate, making it gentler on the hair compared to permanent dyes. HC Violet No. 2 typically lasts through several washes, gradually fading over time.

While generally considered safe for use in hair products, some individuals may experience scalp irritation or allergic reactions. It's important to perform a patch test before full application. The dye's performance can vary depending on the hair's porosity, previous chemical treatments, and natural color. HC Violet No. 2 is often combined with other dye molecules to create custom shades and enhance color vibrancy in hair coloring formulations.