Technical Library

Silky Slip (SS)-Treated Pigments; INCI name: Stearyl Triethoxysilane

Silky Slip (SS)-treated pigments are hydrophobic and resist wetting by water. The stearyl silane imparts the excellent wetting properties of the shorter chain silanes with more emollient skin feel in powders and dispersed systems.

Silky Slip Treatment Benefits:

  • Lubricious skin feel and aesthetics
  • Enhanced compressibility in pressed powders
  • Water repellency
  • Improved wetting and dispersion capability
  • Improved skin adhesion
  • Enhanced cushion due to treatment melt point similar to skin temperature

Recommended Uses:

  • Loose powders
  • Pressed powders
  • Water-in-silicone foundations
  • Water-in-oil foundations
  • Powdercream products
  • Sunscreens

* For pigments not linked to product pages, please contact Personal Care team for information or for custom treatments.


Seribrite™ SS – A High Performance Lubricious Particle; INCI name: Mica and Stearyl Triethoxysilane

Seribrite™ SS is a high whiteness sericite that provides slip and creaminess not achievable with other treated and untreated sericites.

Physical Properties:

  • Color — Off-white
  • Structure — Platelet
  • Source — Natural
  • Whiteness — 93
  • Refractive Index — 1.6
  • Oil Absorption — 38 g oil/ g powder

Seribrite™ Benefits:

  • Cost effective alternative to boron nitride
  • Reduced tack and greasiness
  • Rich, lubricious after-feel
  • High L* (lightness) value
  • Improved spreadability
  • Soft and silky feel

Recommended Uses:

  • Cream to powder/hot pours
  • Liquid foundation
  • Pressed powders
  • Creams and lotions
  • Mineral makeup
  • Lipsticks

Powder Cream Concealer with ML Pigments and SerebriteTM SS

This high coverage formula applies like a cream, yet has the dry feel of a powder. Dimethicone Maximum Loading (ML) pigments allow for higher pigment loading due to low oil absorption and excellent wetting proprieties. Seribrite™ SS is added as a boron nitride replacement due to its whiteness, slip, and creamy feel upon application.

INCI NameIngredientSupplierWeight %
Phase A
Ethylhexyl PalmitateCeraphyl® 368Ashland12.00
TribeheninSyncrowax™ HRCCroda4.50
C30-45 Alkyl MethiconeAMS C-30Dow Silicones4.50
C20-40 AlcoholsPerformacol™ 425New Phase Technology0.25
Benzoic Acid----0.10
Ascorbic Palmitate----0.05
Phase B
Ethylhexyl PalmitateCeraphyl® 368Ashland20.60
Polyglyceryl-3 DiisostearateCithrol™ PG3D2Croda1.00
Quaternium-18 HectoriteBentone® 38VElementis0.20
Titanium Dioxide (&) Dimethicone PEG-3 LaurateTitanium Dioxide MLGelest19.70
Iron Oxides (&) Dimethicone PEG-3 LaurateYellow Iron Oxide MLGelest2.50
Iron Oxides (&) Dimethicone PEG-3 LaurateRed Iron Oxide MLGelest0.85
Iron Oxides (&) Dimethicone PEG-3 LaurateBlack Iron Oxide MLGelest0.15
Talc (&) Dimethicone PEG-3 LaurateTalc MLGelest18.60
Mica (&) Stearyl TriethoxysilaneSeribriteTM SSGelest15.00

  • Combine Phase A and heat to 80 °C under stirring.

  • Add Phase B and mix on three roll mill to disperse.

  • Reheat to 70 °C and pour.
  • See in Formulary.

    Eyeshadow with SS Pigments

    The skin feel of eyeshadow made with Stearyl Triethoxysilane (SS)-treated pigments is exceptionally moist and soft. The long chain stearylsilane is effective in improving compressibility of pigments and pearls while improving skin adhesion.

    INCI NameIngredientSupplierWeight %
    Talc (&) Stearyl TriethoxysilaneTalc SSGelest17.00
    Titanium Dioxide (&) Stearyl TriethoxysilaneTitanium Dioxide SSGelest8.00
    Manganese Violet (&) Stearyl Triethoxysilane (&) MethiconeManganese Violet SSGelest7.00
    Carmine (&) Stearyl Triethoxysilane (&) MethiconeCarmine SSH--7.00
    Zinc StearateZinc Stearate 921-GBrenntag3.80
    Nylon-12Orgasol® 2002DLipo3.00
    Benzoic Acid----0.20
    Mica & Titanium Dioxide (&) Ferric Ferrocyanide (&) Stearyl TriethoxysilaneCloisonne™ Violet SSBASF49.00
    PolydiethylsiloxaneSiBrid® Diethicone DE-23Gelest2.00
    Octyldodecyl StearateCeraphyl® ODSAshland2.00
    Fluorophlogopite (&) Titanium Dioxide (&) Stearyl TriethoxysilaneSachet Sparkling White SS--1.00

    See in Formulary.

    Perfect Lips Lipgloss "Rosalinda" with SS Pigments

    This sheer, high gloss lipgloss is a beautiful color. Stearyl Triethoxysilane (SS)-treated pigments add to the cushiony texture while Vertasil® Tocopheryloxypropyltrisiloxane TM-VE1 softens and conditions lips.

    INCI NameIngredient SupplierWeight %
    Phase A
    Hydrogenated Polyisobutene/ Ethylene/Propylene/ Styrene Copolymer (&)
    Butylene/Ethylene/Styrene Copolymer
    Versagel® ME 500Calumet Penrecoq.s.
    Stearyl BehenatePurester 40Strahl & Pitsch4.15
    TocopheryloxypropyltrisiloxaneVertasil® Tocopheryloxypropyltrisiloxane TM-VE1Gelest1.00
    Prunus Domestica (Plum) Seed OilParaOil™ Plum OilParadigm Science1.00
    Phase B
    PolydiethylsiloxaneSiBrid® Diethicone DE-23Gelest4.50
    Titanium Dioxide (&) Stearyl TriethoxysilaneTitanium Dioxide SSGelest5.20
    Iron Oxides (&) Stearyl TriethoxysilaneRed Iron Oxide SSGelest2.40
    Iron Oxides (&) Stearyl TriethoxysilaneYellow Iron Oxide SSGelest0.10
    Iron Oxides (&) Stearyl TriethoxysilaneBlack Iron Oxide SSGelest0.80
    Phase C
    FlavorSweet RosePremier Specialtiesq.s.
    Stevia Rebaudiana ExtractSweetener--q.s.

  • Under a propeller blade, mix Phase A ingredients while heating to 75-80 °C.

  • Predisperse Phase B ingredients.

  • Add Phase B to Phase A and mix until dispersed.

  • Once dispersed, cool and add Phase C.
  • See in Formulary.

    Satin Feel Foundation with SiBrid® DE-12 and SS Pigments

    Gelest’s Silky Slip (SS) pigments and SiBrid® DE-12 promote easier spreading and blending on skin while providing an exceptionally soft and moist after-feel to liquid foundations. SiBrid® DE-12 is an excellent vehicle for wetting and dispersing pigments.

    INCI NameIngredientSupplierWeight %
    Phase A
    WaterDeionized Water--49.10
    Magnesium Sulfate----0.20
    Phase B
    Butylene Glycol----6.00
    Benzoic Acid----0.20
    Phase C
    PolydiethylsiloxaneSiBrid® Diethicone DE-12Gelest5.00
    CyclopentasiloxaneDC 245 FluidDow Silicones5.00
    Lauryl PEG-9 Polydimethylsiloxyethyl DimethiconeKF 6038Shin Etsu3.00
    Cyclopentasiloxane & C30-45 Alkyl Cetearyl Dimethicone CrosspolymerVelvesil 125Momentive10.00
    Phase D
    Laureth-7Rhodasurf L-7/90Solvay0.50
    Phase E
    PolydiethylsiloxaneSiBrid® Diethicone DE-12Gelest12.00
    Titanium Dioxide (&) Stearyl TriethoxysilaneTitanium Dioxide SSGelest8.00
    Talc (&) Stearyl TriethoxysilaneTalc SSGelest4.10
    Iron Oxides (&) Stearyl TriethoxysilaneYellow Iron Oxide SSGelest1.20
    Iron Oxides (&) Stearyl TriethoxysilaneRed Iron Oxide SSGelest0.50
    Iron Oxides (&) Stearyl TriethoxysilaneBlack Iron Oxide SSGelest0.20

  • Mix Phase A under propeller blade. Premix Phase B while warming to dissolve.

  • Add Phase B to Phase A and stir. Premix first three ingredients in Phase C. When uniform, add remaining ingredient and slowly homogenize.

  • Add Phase D to Phase C and homogenize.

  • Premill Phase E. Add Phase E to Phase CD and homogenize until dispersed.

  • Add Phase AB to Phase CDE and continue homogenizing until emulsified.

  • Increase speed and homogenize for additional 5 minutes.
  • See in Formulary.