Science
Mechanism of Action
This ingredient functions by establishing a lightweight, occlusive yet permeable film on the skin, which actively prevents transepidermal water loss. Beyond its primary role in hydration, it significantly improves the skin's tactile smoothness and optimizes the uniform distribution of cosmetic formulations.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Quaternium-8 exhibits optimal stability within a pH range of 5.0 to 7.0. It demonstrates excellent compatibility with a wide array of cosmetic ingredients, allowing for straightforward integration into diverse formulations. Notably, unlike conventional silicones, it does not inhibit foam but can, in fact, enhance foaming properties, particularly beneficial in hair care applications.
Safety
Safety Profile
Generally considered safe for use in cosmetic formulations, Quaternium-8 carries a low potential for irritation and is typically non-sensitizing when incorporated correctly. However, it is important to note that highly concentrated forms (an aqueous solution of 30-60%) have been classified as a Scheduled Poison S6, which may induce moderate eye irritation and mild skin irritation upon prolonged or repeated exposure. Currently, no specific official status from CIR, SCCS, or FDA has been identified.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Quaternium-8 is a valuable silicone quat that significantly enhances skin hydration, smoothness, and product spreadability, boasting broad skin compatibility with a low risk of irritation and comedogenicity.
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