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Gelest LIA-SRA

Gelest Ultramarine Blue SR (LIA-SRA) is a trimethylsiloxysilicate-treated blue ultramarine pigment for use in various color cosmetic formulations. This pigment is coated with a hydroxyl-terminated silsesquioxane network, which improves adhesion to skin and hair. It is perfect for use in long-wearing and water-resistant makeup.

INCI Name: Trimethylsiloxysilicate, Ultramarines

Pigment Treatment Type: Silicone & Silane Treatment

Pigment Treatment Family: Hydrophilic Treatments

Color: Blue

Labeling Claims: Clean at Sephora, Credo Clean Standard, Natural, Naturally Derived, Ulta Beauty's Conscious Beauty

Knowde Enhanced TDS

Identification & Functionality

CI Number
Chemical Family
Ingredient Origin
Pigment Treatment Family
Pigment Treatment Type
Cosmetic Ingredients Functions
Chemical Structure

Gelest LIA-SRA - Chemical Structure

Features & Benefits

SR Treatment Benefits
  • Superior skin adhesion
  • Water repellency
  • Low oil absorption
  • Provides long wear
  • Higher loading capacity
Performance Benefits

SR pigments and fillers are coated with a hydroxyl terminated silsesquioxane network that improves adhesion to skin and hair. SR pigments are well suited for use in eye make-up formulations. They are hydrophobic, yet are not overly sensitive to oils including sebum.

  • Water repellency
  • Low oil absorption
  • Forms high solids dispersions
  • Improves wear
  • Improves skin adhesion
  • Improves compressibility
  • Recommended for long wearing eye area products
Product Highlights
  • Trimethylsiloxysilicate (SR)-Treated Pigments and fillers provide superior adhesion to skin and hair.
  • SR pigments are best candidates to be used in long-wearing and water-resistant makeup.
  • They are hydrophobic yet are not overly sensitive to oils including sebum.
Surface Treatment Benefits
     
  • Provides long wear
  •  
  • Lowers oil absorption
  •  
  • Improves skin adhesion
  •  
  • Enhances water repellency
  •  
  • Facilitates dispersion processing
  •  

Applications & Uses

Application Format
Color Cosmetic Applications
Recommended Uses
  • Long-wearing lipsticks
  • Long-wearing foundations
  • Long-wearing eyeshadows
  • Long-wearing eyeliners
  • Long-wearing mascaras
Formulation Guideliness
     
  • Use up to 0.10% for color correction
  •  
  • More cost effective than organic pigments
  •  
  • Ultramarine Pink is the only UV and heat stable “red” pigment permitted for use around eyes
  •  
  • Ultramarines have low hiding power; use opacifiers to optimize
  •  
  • Over-processing may decrease color saturation of products
  •  

Properties

Color
Physical Form
Appearance
Blue powder
Odor
Slight characteristic
Typical Properties
ValueUnitsTest Method / Conditions
HydrophilicityPasses (1 gram floats on 50 ml still deionized water)
Loss on Drying (at 105°C, 3 hours)max. 2.5%
Microbiological Values
ValueUnitsTest Method / Conditions
Microbial Content (No Pathogens)max. 100cfu/g
Composition
ValueUnitsTest Method / Conditions
Ultramarine Blue Content96 - 99%
Trimethylsiloxysilicate Content1 - 4%
Heavy Metals
ValueUnitsTest Method / Conditions
Arsenic Contentmax. 3ppm
Lead Contentmax. 20ppm
Mercury Contentmax. 1ppm

Technical Details & Test Data

Skin Adhesion and Wear Resistance

Gelest LIA-SRA - Skin Adhesion And Wear Resistance

Gelest LIA-SRA - Skin Adhesion And Wear Resistance - 1

∆L* Values of Eyeshadow Regression

TiO₂ Dispersion in Diethicone

Gelest LIA-SRA - Tio₂ Dispersion in Diethicone

Packaging & Availability

Packaging Information
  • 60g
  • 240g
  • 1kg
  • 5kg
  • 10kg
  • 25kg
  • Packaging Under: Nitrogen