Science
Mechanism of Action
This ingredient is believed to function by forming a breathable, water-resistant film on the skin's surface. This barrier helps to minimize transepidermal water loss (TEWL), thereby promoting skin hydration. Additionally, it can smooth the skin's texture by filling microscopic irregularities in the stratum corneum and potentially enhancing skin elasticity.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
Specific data regarding 'dusting' behavior for SILICONE QUATERNIUM-5 is not available in the provided research.
The Formula
Formulation
Stability
General silicones demonstrate robust stability across a broad temperature spectrum, typically from -100°C to 250°C, and exhibit resistance to moisture, UV radiation, acids, and alkalis. As a cationic polymer, SILICONE QUATERNIUM-5 is generally stable and optimally utilized within a pH range of 3 to 9.
Conflicts
- strong concentrated acids
- strong concentrated bases
Safety
Safety Profile
While SILICONE QUATERNIUM-5 itself has not been specifically reviewed by CIR, SCCS, or FDA, general silicones are widely considered safe for topical application, non-irritating, hypoallergenic, and non-comedogenic. It is crucial to differentiate this ingredient from substances like Quaternium-15, which is a recognized human skin toxicant and allergen. Related compounds such as Silicone Quaternium-8 and Silicone Quaternium-20 have demonstrated low potential for irritation and sensitization. Some cyclic siloxanes (e.g., D4, D5) have raised environmental concerns; however, D5 is deemed safe for cosmetic use by SCCS at reported concentrations, with exceptions for spray products.
Your Skin
Skin Compatibility
Our Assessment
Verdict
While projected to offer conditioning, spreadability, and barrier benefits consistent with its chemical class, specific efficacy and safety data for SILICONE QUATERNIUM-5 are currently insufficient for a definitive scientific rating.
Related
Similar Ingredients
Finding similar ingredients…