Science
Mechanism of Action
This ingredient functions by creating an ultra-smooth, non-greasy barrier on the stratum corneum, effectively mitigating trans-epidermal water loss (TEWL). Its unique molecular structure includes cetearyl alkyl groups, which significantly enhance its compatibility with botanical oils and improve the spreadability of complex cosmetic formulations.
Research
Clinical Evidence
High confidence5%
Key findings
- 01 A Human Repeated Insult Patch Test (HRIPT) involving 83 participants confirmed that at a 5.0% concentration, the ingredient is both non-sensitizing and non-irritating.
- 02 Safety assessments published in the International Journal of Toxicology validated that methicone polymers maintain an excellent safety profile within their historical use range of 1% to 15%.
Transparency
Dusting Analysis
While often used for its sensory profile, concentrations below 1% may fail to provide the significant barrier-protecting and lubricating properties expected in precision skincare.
The Formula
Formulation
Stability
Chemically inert and highly stable across a broad pH range. It features a melting point near 30°C, facilitating easy integration into lipid phases.
Synergies
- Hydrocarbon-based oils
- Traditional silicones
- Mineral UV filters
Conflicts
- Water-only phases
- Strong oxidizing agents
Safety
Safety Profile
Due to its high molecular weight, cetearyl methicone is not absorbed into the bloodstream, remaining safely on the skin surface.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A sophisticated emollient that provides superior sensory elegance and reliable barrier protection without the heaviness of traditional oils.
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References
Sources