Science
Mechanism of Action
This multifunctional ingredient operates through five primary pathways: it neutralizes reactive oxygen species and chelates metals to prevent oxidative stress; it inhibits NF-κB pathways to suppress pro-inflammatory cytokines; it targets acne by inducing sebocyte apoptosis and disrupting bacterial membranes; it supports DNA repair against UV damage; and its caffeine content stimulates microcirculation for improved skin texture.
Research
Clinical Evidence
High confidence2%
Key findings
- 01 Enhanced elastic tissue density in photoaged skin when used topically alongside oral supplementation over 8 weeks.
- 02 Demonstrated a statistically significant decrease in lesion counts for individuals with mild-to-moderate acne.
- 03 Achieved a 19.8% reduction in cellulite appearance and a measurable improvement in overall skin smoothness.
Transparency
Dusting Analysis
While many formulas include this extract at nominal levels (<0.1%) for marketing claims, clinical data suggests that concentrations of at least 0.3% are necessary for antioxidant activity, with 2% required for targeted acne-fighting efficacy.
The Formula
Formulation
Stability
The extract is highly susceptible to heat and light; it requires an acidic environment to prevent rapid degradation. Temperatures exceeding 50°C and alkaline conditions (pH >8.0) lead to ingredient failure.
Synergies
- Vitamin C
- Vitamin E
- Sunscreens
- Hyaluronic Acid
Conflicts
- Alkaline environments
- Ferric salts
- Strong oxidizing agents
- High-heat processing
Safety
Safety Profile
The CIR Expert Panel considers this safe in leave-on products up to 0.86% and rinse-off products up to 1%, provided the formulation is non-sensitizing.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A gold-standard botanical antioxidant that provides comprehensive defense against photoaging and inflammation when formulated at precise, stable concentrations.
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