Science
Mechanism of Action
This extract functions through a dual-action pathway: its rich tannin content induces temporary protein contraction to visibly tighten pores and regulate sebum, while potent polyphenols like ellagic acid and rutin inhibit tyrosinase and elastase enzymes. This biological inhibition preserves structural elastin and modulates melanin synthesis to promote a more uniform, resilient complexion.
Research
Clinical Evidence
High confidence2%
Key findings
- 01 Inhibition of tyrosinase and elastase enzymes confirmed for skin-brightening and anti-aging benefits.
- 02 In vivo patch testing at 2.0% demonstrated zero irritation and significant antioxidant protection against UV-induced damage.
- 03 Post-procedural application (microneedling) showed measurable increases in hydration levels and overall tone clarity.
Transparency
Dusting Analysis
Because it is a botanical extract with a wide range of documented efficacy (0.1% to 5.0%), many brands include it at 'trace' amounts below 0.1% for label claims. For precision results, particularly for pore refining and brightening, concentrations should ideally exceed 1.0%.
The Formula
Formulation
Stability
Highly stable in water-based systems; however, the polyphenol profile is light-sensitive and requires opaque or UV-protected packaging to prevent oxidation.
Synergies
- Vitamin C (antioxidant synergy)
- Hyaluronic Acid (hydration boost)
- Niacinamide (pore and sebum regulation)
Conflicts
- Strong oxidizing agents
- Highly cationic polymers
- Alkaline environments (pH > 8.0)
Safety
Safety Profile
EWG Green rating (1). Recognized as a safe skin conditioning agent in international databases.
Your Skin
Skin Compatibility
Our Assessment
Verdict
An exceptionally versatile botanical that balances immediate pore-tightening benefits with long-term enzyme inhibition for anti-aging and brightening.
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