Science
Mechanism of Action
The extract operates through its high concentration of polyphenols, specifically Epigallocatechin Gallate (EGCG), which scavenges reactive oxygen species and inhibits NF-kB to downregulate pro-inflammatory cytokines. Furthermore, it modulates 5-alpha-reductase to control lipids and inhibits matrix metalloproteinases to preserve the structural integrity of the dermal matrix.
Research
Clinical Evidence
High confidence2%
Key findings
- 01 Application of 2% green tea lotion demonstrated a significant reduction in acne lesions over a 6-week period.
- 02 Topical 10% concentration showed objective improvements in elastic tissue density and photoaging markers after 8 weeks.
- 03 A 6% glycolic extract formulation significantly enhanced skin microrelief and hydration levels within 30 days.
Transparency
Dusting Analysis
While often listed for marketing purposes at trace amounts (below 0.1%), therapeutic benefits for acne and aging typically require concentrations between 2% and 6%.
The Formula
Formulation
Stability
Highly prone to oxidation and browning; must be processed at temperatures below 40°C and protected from light and air.
Synergies
- UV filters (photoprotection boosting)
- Humectants
- Vitamin C
Conflicts
- Iron and metal ions
- Strong oxidizing agents
- Alkaline environments (pH > 8.0)
- Gelatin
Safety
Safety Profile
CIR guidelines suggest formulation to be non-sensitizing; clinical data supports higher concentrations than CIR's reported 2014 industry usage maximum of 1%.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A gold-standard botanical antioxidant that provides scientifically validated benefits for acne, aging, and skin soothing.
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References
Sources