Polysilicone-11
What is Polysilicone-11?
Polysilicone-11 is a laboratory-synthesized, high-molecular-weight silicone polymer belonging to the siloxane family. Its chemical structure consists of crosslinked polydimethylsiloxanes, creating a rigid yet swellable resin network insoluble in water but dispersible in oils and volatile silicones. Primarily featured in makeup foundations, sunscreens, lip products, and hair styling items, it functions by depositing as fine particles that form a continuous, elastic film on skin or hair. This film adheres tightly, delivering a smooth sensory profile while boosting attributes like durability against rubbing, water exposure, and environmental factors. The polymer's unique matrix enables optical enhancements, such as controlled shine or a soft-focus matte effect, without heaviness. In formulations, it integrates into powders, gels, and emulsions for stable, long-lasting performance.
Roles in Formulation
This ingredient serves the following purposes in cosmetic formulations:
Benefits
Boosts makeup and sunscreen staying power
Adds water and smudge resistance to products
Creates a lightweight, smooth film for better texture
Who It's For
A quick guide for who this ingredient may suit (and who should be cautious).
| Who May Benefit | Who Should Avoid |
|---|---|
| Makeup users wanting extended wear | People with rare silicone sensitivities |
| Active individuals needing sweat-resistant formulas | Individuals preferring fully natural products |
| Those seeking non-greasy shine or matte finishes | Those experiencing uncommon contact reactions |
Safety Notes
- Deemed safe in cosmetics by expert reviews like CIR
- Shows low irritation and comedogenic potential
Frequently Asked Questions about Polysilicone-11
What does Polysilicone-11 do in products?
It forms a durable, flexible film to improve wear, water resistance, and texture.
Is Polysilicone-11 irritating to skin?
It has low irritation potential based on safety assessments.
Where is Polysilicone-11 commonly used?
In foundations, sunscreens, lipsticks, and hair styling products.