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HANSAN · COLOR POWDERS

Color Powders

Iron Oxide × Spherical Silica Composite

Pigment alone gives you color. Composite gives you a formulation.
HANSAN combines iron oxide pigments with spherical silica and applies surface treatment, so the powder performs from application to wear.

Red iron oxide powder

RED

Iron Oxide red with Silica, treated with Alkylsilane or Dimethicone ​

Yellow iron oxide powder

YELLOW

Iron Oxide Yellow with Silica, treated with Alkylsilane or Dimethicone

Black iron oxide powder

BLACK

Iron Oxide Black with Silica, treated with Alkylsilane or Dimethicone

WHY COMPOSITE

Why not use iron oxide on its own?

Iron oxide is a proven cosmetic colorant with excellent tinting strength and safety. Used alone, however, it creates problems inside the formulation. HANSAN's color powders solve those problems at the raw material stage by compositing the pigment with spherical silica.

Iron oxide alone
Composited with Silica
arkening as sebum builds up
Silica acts as a spacer — no agglomeration
Heavy, draggy application
Uniform, true-to-shade color
Uneven, patchy color payoff
Smooth slip from spherical particles
Pigment particles agglomerate
Oil absorption keeps the shade stable

KEY BENEFITS

Four advantages of silica-composite color

1. Ball Bearing Effect — Silky Application

Spherical silica particles roll across the skin like tiny ball bearings, reducing friction between the powder and the skin surface. The pigment glides instead of dragging, so the shade spreads evenly with minimal pressure and a distinctly silky feel.

Iron oxide alone versus composited with spherical silica

2. Anti-Agglomeration & Uniform Color

Fine iron oxide particles tend to clump together, making them difficult to disperse. Silica sits between the pigment particles as a spacer, preventing agglomeration and delivering clean, uniform color without streaking or speckling. Dispersion time in production is reduced as a result.

3. Oil Control & Darkening Resistance

Porous silica absorbs sebum and sweat, preventing the pigment from becoming saturated and shifting darker over the course of the day. The shade applied in the morning is the shade still visible in the afternoon.

4. Surface Treatment for Long Wear

Alkylsilane (AS) or Dimethicone (DS) surface treatment makes the powder hydrophobic. It repels water and sweat so makeup doesn't break down, and improves adhesion to the skin — essential for long-lasting and waterproof formulations.

PRODUCT LINEUP

Product Lineup

Color powder product lineup table

APPLICATIONS

Recommended Applications

Suitable for any powder or base formulation that carries color.

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34-74, Tancheonsaneopdanji-gil, Tancheon-myeon, Gongju-si, Chungcheongnam-do
Contact: sales@hansanchemicals.com

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