Science
Mechanism of Action
This molecule contains carboxylic acid groups that, when neutralized to an alkaline state, organize into an ionic network. This network forms a durable, high-gloss film on the skin's surface that prevents trans-epidermal water loss (TEWL) and enhances the adherence of active ingredients and pigments without compromising skin respiration.
Research
Clinical Evidence
High confidence10%
Key findings
- 01 Clinical evaluation in liquid lipsticks demonstrated an immediate 40% increase in moisture levels and 24-hour resistance to transfer.
- 02 Hair fiber analysis showed that concentrations between 1-10% provide significant conditioning and gloss that remains resilient through multiple wash cycles when properly cross-linked.
Transparency
Dusting Analysis
To achieve the clinical moisture retention and film-forming benefits, concentrations should meet or exceed 1%. Formulas listing this ingredient at the very bottom of the deck often use it merely as a pigment dispersant rather than a primary functional film-former.
The Formula
Formulation
Stability
While chemically stable between pH 3.0 and 10.0, it must be formulated between pH 7.0 and 9.0 to activate its ionic film-forming properties. It is an excellent dispersant for mineral filters like Titanium Dioxide and Iron Oxides.
Synergies
- Polycarbodiimides
- Inorganic pigments
- Alkaline neutralizing agents (TEA/AMP)
Conflicts
- Cationic surfactants
- Highly acidic environments
Safety
Safety Profile
Its high molecular weight prevents systemic absorption, making it non-toxic and non-irritating for topical use.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A sophisticated multi-tasker that excels in precision color cosmetics and barrier-support skincare by bridging the gap between long-wear performance and deep hydration.
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References
Sources