INCI Name
C30-45 Alkyldimethyl...
Functions
4 Roles
Sustainability
3/10
Category
emollients
What It Does
C30-45 Alkyldimethylsilyl Polypropylsilsesquioxane is a silicone resin wax — a hybrid material combining a polypropylsilsesquioxane (T-resin) backbone with long-chain C30-45 alkyl groups grafted via dimethylsilyl linkages. This unique architecture gives it a waxy, solid consistency at room temperature while imparting exceptional water-repellency, long-wear performance, and a smooth, non-tacky skin feel. Formulators prize it in color cosmetics, lip products, and long-wear foundations for its ability to build structure, enhance transfer resistance, and improve the adhesion and longevity of pigments without the greasiness associated with conventional waxes.
Technical Properties
Ionic Charge
nonionic
Molecular charge type
Viscosity Effect
thickening
Impact on formula thickness
Foaming Ability
none
Lather generation
Ingredient Compatibility
Works Well With
Avoid Combining
Sustainability Profile
Sustainability Score
Biodegradability
not readily biodegradable
Source
synthetic
Feedstock
Silicone-based (silicon dioxide-derived) with petroleum-derived long-chain alkyl groups
Related Ingredients
Similar film formers to explore
Capixyl
CAPIXYL
Acrylates/Dimethicone Copolymer
Surface-Treated Chromium Oxide Green
Biotinoyl Tripeptide-1
Quick Reference
- Full INCI Name
- C30-45 Alkyldimethylsilyl Polypropylsilsesquioxane
- Common Name
- C30-45 Alkyldimethylsilyl Polypropylsilsesquioxane
- Category
- emollients