Science
Mechanism of Action
This ingredient functions primarily through its high concentration of Catechins (EGCG), which neutralize reactive oxygen species and block the release of inflammatory markers like IL-1α. Beyond antioxidant support, it protects the skin's structural integrity by inhibiting enzymes that break down collagen and elastin, while interacting with sebaceous receptors to help balance surface lipids.
Research
Clinical Evidence
High confidence1%
Key findings
- 01 Demonstrated anti-inflammatory performance comparable to 2-acetoxybenzoic acid by inhibiting surfactant-induced cytokine release.
- 02 Shown to significantly improve the photostability of organic UV filters while providing active free radical scavenging.
Transparency
Dusting Analysis
Because it is a botanical juice, brands often list it at trace amounts for marketing appeal. However, clinical data suggests a minimum concentration of 0.1% is required for anti-inflammatory benefits, and up to 1.0% for maximum antioxidant protection.
The Formula
Formulation
Stability
Highly prone to oxidation and browning if the pH exceeds 7.0 or if exposed to light. Modern amphiphilic fractions (Zeta Fraction technology) are preferred for enhanced stability.
Synergies
- Organic UV Filters
- Vitamin E
- Hyaluronic Acid
Conflicts
- Iron salts
- Strong oxidizing agents
- Alkaline formulations (pH >7.0)
Safety
Safety Profile
While the leaf extract is widely recognized as safe, the CIR currently cites insufficient data for the specific flower/stem combination; however, the source plant is globally classified as GRAS (Generally Recognized as Safe) for consumption.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A high-performance botanical multi-tasker that excels in photoprotection and inflammatory regulation when formulated within the correct pH range.
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References
Sources