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HC ORANGE NO. 5

Description

HC Orange No. 5, also known as 2-Nitro-4-aminophenol, is a synthetic dye widely used in semi-permanent hair coloring products. This orange-red compound belongs to the nitrophenol family and is particularly effective in imparting warm, copper tones to hair. HC Orange No. 5 is valued for its ability to penetrate the hair shaft, providing longer-lasting color results compared to temporary dyes.

The molecule's structure allows it to bind effectively to keratin proteins in hair, ensuring color stability and resistance to washing. It is often combined with other dyes to create a range of auburn, red, and copper shades. HC Orange No. 5 is approved for use in hair colorants by regulatory bodies in many countries, including the European Union, where it is subject to concentration limits.

While generally considered safe for use in hair dyes, some individuals may experience skin sensitivity or allergic reactions. Patch testing is recommended before application. HC Orange No. 5 is not intended for use around the eyes or on the scalp. It's important to note that this dye is not suitable for permanent hair coloring formulations and should only be used in semi-permanent products as directed.