Science
Mechanism of Action
This extract operates through a triple-action pathway: it neutralizes oxidative stress by scavenging free radicals with high concentrations of catechins and tannins, inhibits tyrosinase activity to modulate melanin production for brighter skin, and utilizes its mucilage content to lock in moisture and suppress inflammatory markers like leukotriene B4.
Research
Clinical Evidence
High confidence5%
Key findings
- 01 A 12-week human study demonstrated that a 5% concentration significantly enhanced stratum corneum water content and reduced transepidermal water loss (TEWL) while visibly smoothing surface wrinkles.
- 02 Research at 6.25% identified potent anti-psoriatic activity, effectively normalizing epidermal thickness and improving skin texture without irritation.
Transparency
Dusting Analysis
While many brands list this botanical for label appeal at trace amounts (under 0.5%), clinical data confirms that significant barrier repair and anti-aging benefits require a robust concentration of at least 5%.
The Formula
Formulation
Stability
The extract maintains thermal stability up to 90°C, but its biological efficacy is compromised in acidic environments below pH 4.0 or when heated above 120°C.
Synergies
- Humectants
- Peptides
- Vitamin C
Conflicts
- Strong acids (pH < 4.0)
- High electrolyte or salt concentrations
Safety
Safety Profile
Clinically tested up to 6.25% with no reports of irritation or sensitization; possesses a low toxicological profile.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A highly effective, low-irritation botanical that excels at moisture retention and tone correction when formulated at clinically relevant percentages.
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References
Sources