Science
Mechanism of Action
As an anionic polymeric surfactant, it reduces interfacial tension to create stable oil-in-water dispersions. Beyond emulsification, its phenolic rings absorb UV radiation and neutralize free radicals through electron donation, while its film-forming properties help encapsulate and deliver lipid-soluble actives.
Research
Clinical Evidence
High confidence1.5%
Key findings
- 01 Concentrations of 2% significantly enhance broad-spectrum UV protection (280–400 nm) and boost SPF ratings when paired with lignin-based particles.
- 02 At 0.5% to 2%, data indicates a substantial reduction in interfacial tension and high antioxidant capacity comparable to traditional bio-based stabilizers.
- 03 1% concentration effectively encapsulates and stabilizes fat-soluble vitamins (A, D, E, K) within aqueous solutions.
Transparency
Dusting Analysis
To achieve measurable SPF boosting or antioxidant benefits, concentrations should ideally exceed 0.5%. Inclusion below 0.1% suggests it is being used solely as a processing aid rather than a functional skin-active.
The Formula
Formulation
Stability
Highly stable across a broad pH range (3–11), though skincare efficacy is optimized between 4.0 and 7.0. The raw material is hygroscopic and requires dry storage to prevent agglomeration.
Synergies
- Fat-soluble vitamins (A, D, E, K)
- Lignin nanoparticles
- Carotenoids
- Mineral UV filters
Conflicts
- Cationic surfactants
- Polyquaterniums
- Sulfates (potential gypsum precipitate formation)
- Strongly alkaline environments
Safety
Safety Profile
Recognized by the FDA as a safe food additive and classified as a 'Green Circle' chemical by the EPA, indicating low concern for human health and the environment.
Your Skin
Skin Compatibility
Our Assessment
Verdict
An exceptional bio-based multifunctional ingredient that provides both formulation stability and measurable photoprotective benefits.
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References
Sources