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HC BLUE NO. 11

Description

HC Blue No. 11, also known as Disperse Blue 377, is a semi-permanent hair dye ingredient primarily used in temporary and semi-permanent hair coloring products. This synthetic colorant belongs to the anthraquinone family of dyes and is characterized by its intense blue hue. HC Blue No. 11 is particularly effective in creating vibrant blue tones on pre-lightened or naturally light hair.

The compound is water-soluble and has a molecular weight that allows it to penetrate the hair shaft without permanently altering its structure. This property ensures that the color gradually fades over time, typically lasting through several washes. HC Blue No. 11 is often combined with other dye molecules to create a wide range of cool-toned shades, including purples and greens.

While generally considered safe for use in hair dyes, some individuals may experience skin sensitivity or allergic reactions. It's important to perform a patch test before using products containing this ingredient. HC Blue No. 11 is regulated by cosmetic authorities in various countries, with specific concentration limits set to ensure consumer safety in hair coloring applications.