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HC YELLOW NO. 5

Description

HC Yellow No. 5 is a synthetic hair dye ingredient widely used in semi-permanent and temporary hair coloring products. This water-soluble compound belongs to the azo dye family and is known for its ability to impart vibrant yellow to golden hues to hair. HC Yellow No. 5 is particularly effective in creating warm blonde and light brown shades, often used in combination with other dyes to achieve a range of hair color results.

The ingredient's molecular structure allows it to penetrate the hair shaft without causing significant damage to the hair's cuticle. It adheres to the hair's protein structure, providing color that gradually fades with washing. HC Yellow No. 5 is typically used in concentrations ranging from 0.1% to 1.0% in hair coloring formulations.

While generally considered safe for use in hair dyes, some individuals may experience allergic reactions. Patch testing is recommended before use. HC Yellow No. 5 is regulated by cosmetic authorities in many countries, including the EU and FDA, with specific concentration limits and usage guidelines to ensure consumer safety in hair coloring applications.