Science
Mechanism of Action
Rich in EGCG and other catechins, it neutralizes reactive oxygen species (ROS) to prevent oxidative stress while inhibiting inflammatory markers like collagenase. It functions as a mild astringent through its tannin content to refine pores and acts as a humectant to enhance stratum corneum hydration.
Research
Clinical Evidence
High confidence30%
Key findings
- 01 Concentrations as low as 2% have shown efficacy in reducing sebum production and managing acne symptoms.
- 02 A 6% concentration demonstrated significant improvements in both immediate skin moisture levels and overall microrelief texture.
- 03 Safety studies confirm 30% leaf water is non-sensitizing and non-irritating even in sensitive mucosal areas like the eyes.
Transparency
Dusting Analysis
While safe at very low levels, concentrations below 5% are often used for marketing claims ('dusting') rather than functional efficacy. To truly benefit from its antioxidant and soothing properties, it should ideally be used at 20% or higher, or as a primary solvent (80-100%).
The Formula
Formulation
Stability
Highly sensitive to oxidation; polyphenols degrade rapidly and turn brown at pH levels above 6.0 or when exposed to light, high heat, and oxygen.
Synergies
- Vitamin C
- Vitamin E
- Hyaluronic Acid
- Ferulic Acid
Conflicts
- Strong oxidizing agents
- Heavy metal ions
- Strongly alkaline ingredients
Safety
Safety Profile
Generally regarded as safe for all populations; CIR assessments confirm lack of irritation when formulated correctly within acidic pH ranges.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A high-performance botanical alternative to deionized water that offers multi-functional antioxidant and soothing benefits when used at significant concentrations.
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References
Sources