Science
Mechanism of Action
It functions primarily through high concentrations of polyphenols, particularly Epigallocatechin Gallate (EGCG), which quench reactive oxygen species and inhibit collagen-degrading enzymes. Additionally, it modulates 5-alpha-reductase to lower oil production and suppresses pro-inflammatory pathways like NF-κB and COX-2 to mitigate redness and photoaging.
Research
Clinical Evidence
High confidence3%
Key findings
- 01 A 2% concentration significantly reduced inflammatory lesions in mild-to-moderate acne subjects.
- 02 Topical 3% extract application over 8 weeks demonstrated a marked reduction in sebum secretion and improved skin microrelief.
- 03 Formulations at 6% were shown to boost both immediate and long-term moisture levels while enhancing elasticity within 30 days.
- 04 A 10% concentration showed significant restorative effects on elastic tissue in photoaged skin.
Transparency
Dusting Analysis
While many products include green tea for label appeal at concentrations below 0.5%, clinical data suggests that significant anti-acne and sebum-regulating benefits require a minimum of 2-3%.
The Formula
Formulation
Stability
Highly sensitive to oxidation; it should be incorporated during the cool-down phase (<40°C) and stored in light-protected packaging.
Synergies
- Vitamin C
- Chelators (EDTA)
- Sodium Metabisulfite
- Broad-spectrum Sunscreens
Conflicts
- Alkaline environments (pH > 7.0)
- Strong oxidizers
- Iron ions (risk of purple discoloration)
Safety
Safety Profile
While CIR suggests 0.86% for leave-on products to ensure no sensitization, higher clinical percentages are well-tolerated when stabilized and purified.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A world-class botanical backed by robust clinical data for its ability to protect, soothe, and balance all skin types.
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References
Sources