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HC YELLOW NO. 16

Description

HC Yellow No. 16, also known as 2-[(4-Aminophenyl)azo]-1,3-dimethyl-1H-imidazolium chloride, is a synthetic hair dye molecule primarily used in semi-permanent and temporary hair coloring products. This compound belongs to the azo dye family and imparts a vibrant yellow hue to hair strands. HC Yellow No. 16 is particularly effective in creating warm blonde and golden tones, especially when combined with other dye molecules.

The ingredient demonstrates good color retention properties, allowing for longer-lasting results compared to some other temporary dyes. It has a relatively low molecular weight, which enables it to penetrate the hair shaft effectively without causing significant damage to the hair structure. HC Yellow No. 16 is compatible with various hair types and works well in both acidic and alkaline formulations.

Safety assessments have shown that HC Yellow No. 16 has a favorable toxicological profile when used as directed in hair coloring products. However, as with all hair dyes, patch testing is recommended to check for potential allergic reactions. This ingredient is approved for use in hair dye formulations in many countries, including those in the European Union, subject to specific concentration limits.