Science
Mechanism of Action
This ingredient functions as a sophisticated film former, leveraging a silicone-modified pullulan base. Upon application, it constructs robust, non-sticky films that are notably hard, strong, and glossy. The strategic silicone modification confers superior water and oil repellency, which translates into exceptional anti-transfer properties for cosmetic formulations, particularly in long-wear products such as lipsticks. Furthermore, this modification contributes to enhanced film flexibility, ensuring comfortable wear without a tacky sensation. Beyond its direct film-forming capabilities, it can also stabilize pigmented products by forming a gel structure in the presence of specific hydrogen-bonding co-ingredients, while maintaining its primary film-forming efficacy. In hair care, it serves as an effective fixing agent for durable styling.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
The foundational pullulan polymer exhibits stability across a broad pH range, from 2 to 11. Trimethylsiloxysilylcarbamoyl Pullulan itself demonstrates enhanced formulation stability for pigmented products through its capacity to form gel structures. This gel formation is triggered in combination with hydrogen-bonding components, including certain silicone/acrylate film formers, amino gums and fluids, various emulsifiers, and self-emulsifying elastomers.
Synergies
- Silicone/acrylate film formers
- Amino gums and fluids
- Emulsifiers
- Self-emulsifying elastomers
Safety
Safety Profile
While the base ingredient, Pullulan, has been affirmed as safe by the CIR Expert Panel, Trimethylsiloxysilylcarbamoyl Pullulan, being a modified derivative, lacks a dedicated CIR review. Nevertheless, comprehensive safety assessments from ingredient information platforms report no adverse penalties across safety categories, and it is not listed on EWG Skin Deep's restricted lists, suggesting a generally favorable safety profile.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Trimethylsiloxysilylcarbamoyl Pullulan is a valuable ingredient for enhancing cosmetic longevity and wear, providing robust film-forming properties with excellent water and oil repellency, and a comfortable, non-tacky feel.
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References
Sources