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4,6-BIS(2-HYDROXYETHOXY)-M-PHENYLENEDIAMINE

Description

4,6-Bis(2-hydroxyethoxy)-m-phenylenediamine is a synthetic hair dye ingredient primarily used in permanent and semi-permanent hair coloring products. This aromatic compound belongs to the family of phenylenediamines, which are known for their ability to produce a wide range of hair color shades when combined with oxidizing agents.

The molecule features two hydroxyethoxy groups attached to a phenylenediamine core, enhancing its solubility and reactivity in hair dye formulations. This structure allows for improved penetration into the hair shaft and more efficient color development. When oxidized, it forms larger, color-producing molecules that remain trapped within the hair's cortex.

4,6-Bis(2-hydroxyethoxy)-m-phenylenediamine is particularly effective in creating warm brown to reddish-brown shades. It exhibits good color stability and resistance to fading compared to some other hair dye compounds. However, like other phenylenediamines, it may cause allergic reactions in sensitive individuals, necessitating patch testing before use.

Formulators often combine this ingredient with other dye precursors and couplers to achieve specific color outcomes and improve overall performance. Its use is regulated in cosmetic products to ensure safety and efficacy in hair coloring applications.