Science
Mechanism of Action
This ingredient operates as a multi-tasking interfacial stabilizer. It works by reducing surface tension to create ultra-fine nanodispersions and stable emulsions, particularly for lipophilic substances like UV filters. On the skin, it deposits a lightweight, conditioning film that prevents transepidermal water loss while simultaneously facilitating the delivery of water-soluble nutrients.
Research
Clinical Evidence
High confidence5%
Key findings
- 01 Clinical evaluation demonstrates that concentrations between 0.05% and 10% significantly enhance the oxidative stability and transdermal delivery of L-Ascorbic Acid within nanodispersion systems.
- 02 Research indicates that levels of 3% to 7% in cleansing compositions notably improve post-wash skin feel and increase the deposition efficiency of lipid-based care substances.
Transparency
Dusting Analysis
Given its efficacy in stabilizing actives at very low concentrations (0.05%), it is rarely 'dusted.' However, if used as a primary surfactant or emollient for texture, it should be present at 3% or higher to provide tangible consumer benefits.
The Formula
Formulation
Stability
Exhibits exceptional resilience across a wide pH spectrum and maintains performance in hard water. For specialized phospholipid delivery systems, a pH of 6.5 is ideal for maximum structural integrity.
Synergies
- L-Ascorbic Acid
- UV Filters
- Phospholipids
- Lipophilic Actives
Conflicts
- Strongly alkaline environments (potential hydrolysis)
- High-density cationic surfactant systems
Safety
Safety Profile
Classified by the CIR within the Alkyl Esters and Alkyl Pareth Carboxylates groups as safe for cosmetic use, provided the final formulation is optimized for non-irritancy.
Your Skin
Skin Compatibility
Our Assessment
Verdict
An indispensable formulation tool for enhancing the delivery of unstable actives while ensuring a premium, non-irritating skin feel.
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References
Sources