Science
Mechanism of Action
The extract functions through a dual-action pathway: its complex polysaccharides and mucilage act as a high-capacity humectant, trapping water within the stratum corneum to prevent trans-epidermal water loss. Simultaneously, its rich profile of phenolic compounds, specifically p-coumaric acid and the flavonoid rutin, neutralizes free radicals and inhibits lipid peroxidation to preserve cellular integrity.
Research
Clinical Evidence
High confidence3%
Key findings
- 01 Pharmaceuticals (2018) demonstrated significant antioxidant activity at concentrations of 10-100 µg/mL, identifying an EC50 of approximately 427 µg/mL for DPPH scavenging.
- 02 Consumer product testing has validated that usage levels between 1% and 5% provide sustained 24-hour skin hydration and measurable reinforcement of the lipid barrier.
Transparency
Dusting Analysis
As a botanical extract with high marketing appeal, it is frequently included at concentrations below 0.5% for 'label claims.' However, clinical data suggests a minimum threshold of 1% is required to achieve the documented 24-hour hydration and barrier repair benefits.
The Formula
Formulation
Stability
Highly stable in standard emulsions and aqueous serums. It is sensitive to alkaline environments (pH > 7.0), which can cause anthocyanin-driven color shifts. Bioavailability is often optimized via liposomal delivery systems.
Synergies
- Hyaluronic Acid
- Glycerin
- Ceramides
Conflicts
- Strong oxidizing agents
- Highly alkaline formulations
Safety
Safety Profile
While not yet formally reviewed by the CIR, it has a long history of safe use in food and cosmetics globally; it is recognized as non-irritating and safe for sensitive skin profiles.
Your Skin
Skin Compatibility
Our Assessment
Verdict
An exceptional botanical for moisture management and antioxidant protection, provided it is formulated at concentrations of 1% or higher.
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References
Sources