Science
Mechanism of Action
This ingredient functions by forming a vapor-permeable film on the skin, facilitated by its silicone backbone and low surface tension, which promotes effortless spreading. As a positively charged quaternary ammonium compound, it adheres to the skin's naturally negatively charged surface, providing conditioning and improving tactile qualities. Additionally, its film-forming properties contribute to a 'soft focus' effect by scattering light, which can subtly obscure the appearance of fine lines and minor imperfections.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Conflicts
- Avoid use in products where N-nitroso compounds may be formed due to potential impurities.
Safety
Safety Profile
The CIR Expert Panel has concluded Silicone Quaternium-26 is safe under current usage practices, with a maximum concentration of 2.5% in leave-on products. Formulators must note the presence of potential impurities (diethanolamine and 3-dimethylaminopropylamine) and ensure it is not used in environments conducive to N-nitroso compound formation.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Silicone Quaternium-26 is a valuable ingredient for improving the sensory profile and aesthetic finish of skincare formulations, offering conditioning, a non-greasy feel, and a subtle soft-focus effect without significant compatibility concerns.
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References
Sources