Science
Mechanism of Action
The extract utilizes a high concentration of epicatechin, catechin, and rutin to scavenge reactive oxygen species (ROS) and inhibit lipid peroxidation. Furthermore, its chemical structure enables UV absorption and scattering, while its alkaloid content exhibits targeted antimicrobial action against specific bacterial strains like P. aeruginosa.
Research
Clinical Evidence
Medium confidence10%
Key findings
- 01 A 2020 study demonstrated that a 10% concentration provides a biological SPF > 6 and significant antibacterial activity.
- 02 Stability testing confirmed that concentrations between 2% and 10% maintain high phenolic integrity and sensory performance in O/W emulsions.
Transparency
Dusting Analysis
Many formulations include botanical extracts at negligible levels (below 0.1%) for marketing purposes; however, clinical data suggests that a minimum of 2% is required for antioxidant stability, and 10% for measurable photoprotection.
The Formula
Formulation
Stability
Highly stable in oil-in-water emulsions up to 10% load. It offers a non-sticky finish with excellent spreadability in hydroglycolic bases.
Synergies
- Broad-spectrum UV filters
- Vitamin E
- Glycerin
Conflicts
- Strong oxidizing agents
- Highly alkaline formulations (pH > 7.0)
Safety
Safety Profile
Recognized by EU CosIng and the International Cosmetic Ingredient Dictionary as a safe skin-conditioning agent; no known adverse restrictions exist.
Your Skin
Skin Compatibility
Our Assessment
Verdict
An emerging botanical powerhouse that offers legitimate photoprotective and antioxidant benefits when formulated at precision concentrations of 2% or higher.
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References
Sources