Science
Mechanism of Action
This extract operates through a dual-action pathway: first, its high concentration of quassinoids and flavonoids neutralizes reactive oxygen species (ROS) to prevent the oxidative breakdown of collagen and elastin. Simultaneously, its natural tannin content exerts an astringent effect, temporarily tightening the skin surface and refining texture for a firmer appearance.
Research
Clinical Evidence
Medium confidence1%
Key findings
- 01 Demonstrated an EC50 of 343 µg/mL for DPPH radical scavenging, indicating potent antioxidant capacity compared to traditional botanical benchmarks.
- 02 In a 12-week clinical evaluation of a firming serum containing this extract, 100% of participants observed measurable improvements in elasticity and firmness.
Transparency
Dusting Analysis
Due to its inclusion in high-profile proprietary blends where it is often the secondary or tertiary active, it is frequently used at 'label claim' concentrations below 0.1% which may not provide the full antioxidant benefits seen in clinical screenings.
The Formula
Formulation
Stability
Tannin-rich extracts are prone to oxidation and darkening if exposed to light or air; use in airless packaging or stabilized aqueous systems is recommended.
Synergies
- Vitamin C (L-Ascorbic Acid)
- Hyaluronic Acid
- Peptides
Conflicts
- Strong oxidizing agents
- Iron salts
- Highly alkaline formulations
Safety
Safety Profile
Listed in the EU CosIng database; generally recognized as safe for topical application within standard botanical dosage ranges.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A sophisticated botanical active that offers reliable environmental protection and tangible firming benefits when formulated within its stability-optimized pH range.
Related
Similar Ingredients
Finding similar ingredients…
References
Sources