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DHI Series
Melanin Precursor, Next-Gen Human Bionic Hair Dye Raw Material
5,6-Dihydroxyindole (DHI)
Summary
As a new-generation human bionic hair dye raw material and core precursor of human melanin (non plant), DHI simulates authentic human melanin synthesis. It integrates safety, natural color restoration, hair repair and long-lasting color fastness, widely adopted in EU premium low-allergy grey coverage products.
Excellent Performance
Ultra-safe & Low Sensitization: Free of PPD, ammonia, heavy metals and other irritants with minimal allergy risk. EU SCCS certified, ideal for sensitive scalp and damaged hair.
Natural Pure Tone: Restores authentic human melanin color without red, yellow or fake cast. Eliminates chemical brassiness for pure natural black and dark brown shades.
Coloring & Hair Care Integration: Protects hair cuticles, fills hair voids, repairs damaged strands and enhances hair toughness, enabling simultaneous coloring and nourishing.
Outstanding Color Fastness: Fades barely after 30 washes, maintaining long-lasting deep hair color..
Gradual & Natural Coloring: Continuous use achieves gradual color accumulation and natural grey coverage without abrupt color change.
Basic Information
Application Overview
Scope: Oxidative hair coloring only.
Shades: Black and Dark Brown.
Maximum Dosage： 0.5%
Optimal formulation pH: 4.5–6.0
Bionic Melanin Technology
DHI simulates human melanin synthesis to achieve mild, damage-free and natural hair coloring.
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