Science
Mechanism of Action
This ingredient functions by creating a hydrophobic, vapor-permeable film across the skin's epidermis. This occlusive barrier is instrumental in significantly reducing transepidermal water loss (TEWL), thereby locking in moisture and maintaining optimal skin hydration. Its molecular structure also allows it to fill in microscopic fine lines and pores, resulting in a perceivably smoother skin texture and a refined, non-greasy finish.
Research
Clinical Evidence
High confidenceN/A
Key findings
- 01 Observed to function effectively as a skin and hair conditioning agent at concentrations up to 3.0%.
- 02 Historical usage concentrations up to 5% have demonstrated its role as a conditioning agent in various cosmetic formulations.
- 03 At concentrations between 0.5% and 5%, it acts as a thickening and viscosity modifying agent, imparts desirable slip, and can contribute to enhancing SPF efficacy.
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Exhibits excellent emulsification properties, facilitating its easy incorporation into a variety of cosmetic bases.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel has concluded Stearoxy Dimethicone to be safe for use in cosmetic formulations, a conclusion reaffirmed in 2020 due to its minimal skin absorption likelihood from large molecular weight. It is not restricted under European Union cosmetic product regulations. Its parent compound, Dimethicone, is FDA-approved as a Category I skin protectant up to 30% concentration.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Stearoxy Dimethicone is a valuable, well-tolerated silicone polymer that effectively enhances skin hydration, refines texture, and improves product aesthetics across diverse skin types and formulations, supported by a strong safety profile.
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