company tower banner
Gelest Inc. Company Logo

Gelest RIA-HSA

Gelest Red Iron Oxide HS (RIA-HSA) is a red iron oxide powder treated with disodium carboxyethyl siliconate. This pigment is used in various color cosmetic formulations. It has a higher tinting strength and a reduced tendency for color flotation and plate-out.

INCI Name: Disodium Carboxyethyl Siliconate, Iron Oxides

Pigment Treatment Type: Hydrosperse Treatment (HS) , Silicone & Silane Treatment

Pigment Treatment Family: Hydrophilic Treatments

Color: Red

Labeling Claims: Ulta Beauty's Conscious Beauty

Knowde Enhanced TDS

Identification & Functionality

CI Number
Pigment Treatment Family
Cosmetic Ingredients Functions
Chemical Structure

Gelest RIA-HSA - Chemical Structure

Features & Benefits

Performance Benefits

Gelest Hydrosperse surface modification creates an anionic, hydrophilic reacted coating that provides instant dispersion in aqueous media without high shear agitation. 

  • Improved wetting in aqueous systems
  • Dispersion in water with low shear mixing
  • Complete color development
  • Higher tinting strength
  • Capability to achieve high pigment loading
  • Reduced tendency for color flotation and plate-out

Applications & Uses

Color Cosmetic Applications

Properties

Color
Appearance
Red powder
Odor
Slight characteristic
Typical Properties
ValueUnitsTest Method / Conditions
HydrophobicityPasses (1 gram wets on 50 ml still deionized water)
Loss on Drying (at 105°C, 3 hours)max. 1%
Microbiological Values
ValueUnitsTest Method / Conditions
Microbial Content (No Pathogens)max. 100cfu/g
Composition
ValueUnitsTest Method / Conditions
Red Iron Oxide Content98 - 99%
Disodium Carboxyethyl Siliconate Content1 - 2%
Heavy Metals
ValueUnitsTest Method / Conditions
Arsenic Contentmax. 3ppm
Cadmium Contentmax. 1ppm
Chromium Contentmax. 100ppm
Copper Contentmax. 50ppm
Lead Contentmax. 10ppm
Mercury Contentmax. 1ppm
Nickel Contentmax. 200ppm
Zinc Contentmax. 100ppm

Packaging & Availability

Country Availability
Regional Availability
  • Asia Pacific
  • Europe
  • North America
Packaging Information
  • 75g
  • 300g
  • 1kg
  • 10kg
  • 25kg
  • Packaging Under : Nitrogen