Science
Mechanism of Action
Functions as a multifaceted protective agent by scavenging free radicals through its high polyphenol content and inhibiting Advanced Glycation End-product (AGE) formation by neutralizing dicarbonyl intermediates. Additionally provides antimicrobial benefits against both gram-positive and gram-negative bacteria through its flavonoid and tannin compounds.
Research
Clinical Evidence
Medium confidence0.3%
Key findings
- 01 AGE inhibition study at 0.03-0.5% showing significant reduction in fructosamine and CML levels
- 02 Antiproliferative effects demonstrated at 0.5-1.0% concentrations on melanoma cell lines
Transparency
Dusting Analysis
Given the established efficacy at 0.03% and above, concentrations below 0.01% would provide minimal therapeutic benefit and should be considered inadequate dosing.
The Formula
Formulation
Stability
Requires protection from light and heat due to vitamin C and polyphenol content. Benefits from stabilization with chelating agents or vitamin E. May impart yellow-brown tinting at higher concentrations.
Synergies
- Vitamin E
- chelating agents
- other antioxidants
Conflicts
- strong oxidizing agents
- highly alkaline formulations
Safety
Safety Profile
Generally recognized as safe based on food use history and absence of toxicity in animal studies up to 5g/kg oral doses. Standard botanical extract precautions apply.
Your Skin
Skin Compatibility
Our Assessment
Verdict
A well-rounded protective ingredient with proven anti-glycation and antioxidant benefits at reasonable concentrations, suitable for comprehensive anti-aging strategies.
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