Science
Mechanism of Action
This extract utilizes a complex profile of triterpenes like betulin and lupeol to downregulate pro-inflammatory pathways, specifically targeting IL-4 and NF-kappaB. Simultaneously, its polyphenol content neutralizes oxidative stress while stimulating the expression of essential structural proteins to enhance lipid barrier cohesion.
Research
Clinical Evidence
High confidence1%
Key findings
- 01 A 28-day clinical trial involving 35 subjects demonstrated that even at a low concentration of 0.1%, the extract significantly improved corneocyte cohesion and restructured the skin barrier in dry and very dry skin types.
- 02 In vitro analysis confirmed potent antioxidant capacity, with an IC50 of 2.4 μg/ml for DPPH radical scavenging, effectively preventing lipid peroxidation.
Transparency
Dusting Analysis
Because this ingredient remains effective in clinical settings at concentrations as low as 0.1%, many mass-market formulations include it at 'label-only' levels (below 0.05%) to claim its benefits without providing the necessary concentration for barrier repair.
The Formula
Formulation
Stability
The extract is thermolabile; it must be incorporated during the cooling phase (below 40°C) to preserve the integrity of its heat-sensitive triterpenoids and flavonoids.
Synergies
- Ceramides
- Hyaluronic Acid
- Niacinamide
Conflicts
- Strong oxidizing agents
- High-heat processing
Safety
Safety Profile
Widely recognized as a low-hazard ingredient with an EWG score of 1. It is a staple in high-end J-beauty and K-beauty for its gentle but effective profile.
Your Skin
Skin Compatibility
Our Assessment
Verdict
An exceptionally reliable botanical for sensitive and compromised skin that offers proven barrier-restructuring benefits when formulated at active concentrations.
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References
Sources