Science
Mechanism of Action
Acting as an advanced film-former, DIMETHICONE/SILSESQUIOXANE COPOLYMER creates a smooth, continuous layer upon application to the skin. The dimethicone component of this copolymer establishes a temporary, non-occlusive barrier that effectively reduces transepidermal water loss (TEWL) and offers protection against environmental stressors. Concurrently, it contributes to an improved skin aesthetic by temporarily filling superficial fine lines and pores, resulting in a visibly smoother complexion. Further, its silsesquioxane elements can impart a refined, elastomer-like sensory feel and may assist in sebum absorption for enhanced oil control.
Research
Clinical Evidence
Insufficient-data confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Demonstrates exceptional stability across extreme temperatures (from -100°C to 250°C), and is resistant to moisture, UV radiation, acids, alkalis, and ozone, ensuring robust performance in diverse formulations.
Safety
Safety Profile
The CIR Expert Panel has determined that dimethicone and its related polymers are safe for cosmetic application, citing their large molecular weight as a factor that minimizes significant skin absorption. This copolymer is covered by this broad safety assessment. While no specific maximum concentration limit is established for this particular ingredient, analogous dimethicone copolyols have reported safe use concentrations up to 22%. The FDA also recognizes dimethicone as a safe active ingredient. There is a general cautionary note from EWG regarding potential contamination by toxic impurities.
Your Skin
Skin Compatibility
Our Assessment
Verdict
This versatile silicone copolymer offers significant benefits in skincare through its film-forming, barrier-enhancing, and skin-smoothing properties, making it a valuable addition to many formulations.
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References
Sources