Science
Mechanism of Action
It functions as an occlusive emollient by forming a vapor-permeable, non-comedogenic film. This protective layer significantly reduces transepidermal water loss (TEWL) while physically smoothing the skin's micro-relief, effectively blurring fine lines and providing a silky finish.
Research
Clinical Evidence
High confidence5%
Key findings
- 01 A clinical Human Repeated Insult Patch Test (HRIPT) involving 83 participants confirmed the ingredient is a non-sensitizer and non-irritant at a 5.0% concentration.
- 02 Toxicological assessments demonstrate that due to its large molecular size, the polymer remains on the skin surface and is not absorbed into the bloodstream following dermal application.
Transparency
Dusting Analysis
As a functional texture modifier and occlusive, Bis-Dimethicone is rarely 'dusted' for marketing purposes; it is typically used at effective levels to achieve specific tactile results and barrier protection.
The Formula
Formulation
Stability
Exhibits exceptional oxidative stability and is non-reactive across a broad pH spectrum. To prevent 'pilling,' it requires precise emulsification, especially when layered with water-heavy formulas.
Synergies
- Low-polarity emollients
- Humectants (to seal in moisture)
Conflicts
- Highly polar oils
- Specific water-soluble thickeners in surfactant-free systems
Safety
Safety Profile
The CIR Expert Panel classifies it as safe due to its lack of skin penetration. In spray formats, safety is maintained by ensuring particle sizes exceed 60 microns to prevent deep inhalation.
Your Skin
Skin Compatibility
Our Assessment
Verdict
An excellent, non-irritating film-former that provides superior texture and moisture retention across all skin types.
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