Science
Mechanism of Action
This extract operates through a dual-action pathway: first, its high concentration of (+)-α-viniferin (an oligomeric stilbene) suppresses inflammatory markers like COX-2 and iNOS more efficiently than standard resveratrol. Simultaneously, its polysaccharide content creates a moisture-locking matrix on the skin surface while polyphenolic compounds inhibit tyrosinase activity to modulate melanin production.
Research
Clinical Evidence
High confidence2%
Key findings
- 01 Clinical testing at a 2% concentration demonstrated a 48.6% increase in skin moisture within one hour, with sustained hydration (34.2%) lasting 24 hours.
- 02 In vitro data reveals that its key constituent, (+)-α-viniferin, possesses an IC50 of 7 µM for COX-2 inhibition, making it approximately 3 to 4 times more potent than resveratrol in mitigating inflammatory responses.
- 03 A 4-week study on 20 subjects showed significant visible reduction in skin desquamation, roughness, and objective dryness.
Transparency
Dusting Analysis
Because it is often marketed for its exotic botanical origin in 'calming' lines, it is frequently used at trace levels (under 0.1%) where its moisture-retention and anti-inflammatory properties are negligible. Effective results require a concentration of at least 1-2%.
The Formula
Formulation
Stability
Highly stable in aqueous solutions and emulsions, though its polyphenol content suggests sensitivity to extreme heat and prolonged UV exposure; amber packaging is recommended.
Synergies
- Hyaluronic Acid
- Resveratrol
- Niacinamide
- Ceramides
Conflicts
- Strong oxidizers
Safety
Safety Profile
While not yet formally reviewed by the CIR, it has an established safety profile through extensive use in the Korean dermo-cosmetic market with no reported adverse irritancy.
Your Skin
Skin Compatibility
Our Assessment
Verdict
An exceptional botanical for sensitive and dehydrated skin that outperforms traditional antioxidants in inflammatory control when formulated at active concentrations.
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