Science
Mechanism of Action
This ingredient functions by temporarily reorganizing the ordered intercellular lipid bilayers of the stratum corneum. By reducing the skin barrier's resistance, it increases the thermodynamic activity of accompanying molecules, allowing active ingredients like L-ascorbic acid to partition more efficiently into the deeper epidermal layers.
Research
Clinical Evidence
High confidence2%
Key findings
- 01 Demonstrated significant enhancement of transdermal penetration for L-ascorbic acid concentrations up to 40% in dermatological compositions.
- 02 Proven effective at low concentrations (0.027-0.057%) for preventing the crystallization of organic UV filters like Tinosorb S, ensuring formula homogeneity.
Transparency
Dusting Analysis
While used at very low levels (under 0.1%) as a stabilizer for UV filters, its primary functional role as a penetration enhancer typically requires concentrations between 0.5% and 2.0%.
The Formula
Formulation
Stability
Exhibits exceptional stability across a broad pH spectrum and is highly salt-tolerant. It maintains structural integrity even in complex polymer systems.
Synergies
- L-Ascorbic Acid
- Tinosorb S
- Sodium Dodecyl Sulfate
Conflicts
- Strong bases
- Strong oxidizing agents
Safety
Safety Profile
Classified as corrosive in its 100% pure form; however, it is considered safe for topical use when diluted below 5%. It should not be used in products that are aerosolized (sprays).
Your Skin
Skin Compatibility
Our Assessment
Verdict
An essential auxiliary for high-precision formulations requiring deep delivery of actives, though its barrier-disrupting nature makes it less suitable for sensitive skin types.
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References
Sources