Science
Mechanism of Action
The extract operates through a high concentration of coumarins and flavonoids that act as biological scavengers of reactive oxygen species (ROS). By inhibiting oxidative enzymes, it helps preserve the structural integrity of the skin's lipid barrier against external aggressors while simultaneously serving as a natural masking agent in complex formulations.
Research
Clinical Evidence
Low confidence0.1%
Key findings
- 01 In vitro DPPH assays demonstrate an IC50 of approximately 12.8 mg/mL, indicating antioxidant capacity that can exceed synthetic controls like BHT under specific conditions.
Transparency
Dusting Analysis
Because it is highly aromatic and contains regulated allergens (coumarin), it is almost always used at 'label claim' levels below 0.1%. It is rarely included for its biological benefits alone due to sensitization risks at higher concentrations.
The Formula
Formulation
Stability
Lipophilic and sensitive to oxidation; requires protection from light and air. Often stabilized in Triethyl Citrate (TEC) to manage viscosity.
Synergies
- Vitamin E
- Lipid-based emollients
- Other polyphenolic antioxidants
Conflicts
- Strong oxidizing agents
- Highly alkaline environments (pH > 7.0)
Safety
Safety Profile
Regulated by IFRA due to coumarin content, which is a known allergen under EU Annex III. It is a potent pollen allergen and should be avoided by those with known grass allergies.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A sophisticated aromatic component with antioxidant benefits, though its use is strictly limited by potential sensitization and allergen regulations.
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References
Sources