DHI Series

Melanin Precursor, Next-Gen Human Bionic Hair Dye Raw Material

5,6-Dihydroxyindole HBr

Coloring Principle

Compared with DHI, it possesses superior storage stability and resists premature oxidation. Under mild weakly alkaline conditions, it converts into DHI via air oxidation. The molecules penetrate the hair cortex and polymerize in situ to produce biomimetic eumelanin, delivering natural black and dark brown shades identical to native hair.

Basic Information

Recommended Usage

1. Applicable systems: two-component biomimetic hair dye cream, non-lightening grey coverage hair products, hair-care black hair lotion

2. Color Range: Only applicable for black and dark brown, unavailable for light colors.

3. Maximum Dosage： 2.0%

4. Optimal formulation pH: 5.0-8.0;