Science
Mechanism of Action
This extract operates through several key pathways. As a potent antioxidant, it neutralizes free radicals, mitigating oxidative stress, lipid peroxidation, and inflammation. It actively interrupts glycation, protecting skin's surface lipids and structural integrity. The extract significantly improves skin elasticity and firmness by protecting fibroblast contractility, inhibiting elastase-induced breakdown of elastic tissues, and bolstering the Dermal-Epidermal Junction through the maintenance of critical proteins like Collagen IV, Collagen VII, and Laminin-5. Its primary active component, astilbin, strengthens the skin barrier by enhancing tight junction protein adhesion, thereby resisting transepidermal water loss. Furthermore, it exhibits anti-inflammatory effects by modulating inflammatory pathways (e.g., COX-2, NF-κB) and contributes to skin brightening by reducing signs of oxidative stress, with preliminary studies suggesting potential antibacterial activity.
Research
Clinical Evidence
High confidenceClinical studies indicate efficacy at concentrations as low as 0.03% for maintaining resiliency and a lifted look. For enhanced elasticity and firmness, it has been utilized at levels up to 3% in blends.
Key findings
- 01 Effectively supports skin resiliency, contributes to a lifted look, and helps maintain a generally more youthful appearance.
- 02 Contributes to significant improvements in skin elasticity and firmness when formulated with butylene glycol.
- 03 A blend including this extract demonstrated a 23% reduction in wrinkle intensity, a 130% improvement in skin hydration, a 38% reduction in sensitivity, a 12% decrease in dullness, a 23% increase in skin barrier function, and skin appearing 7% more radiant.
Transparency
Dusting Analysis
The available clinical data specifies effective concentrations for this extract, ranging from 0.03% for general anti-aging benefits to 3% when incorporated into blends for robust elasticity and firmness improvements. This indicates it is utilized at functional levels rather than being included minimally for label claims.
The Formula
Formulation
Stability
Engelhardtia Chrysolepis Leaf Extract is relatively stable under controlled conditions. However, proper preservative systems and protective packaging are crucial for ensuring product shelf life. Its solubility profile is versatile, with water-based extracts being hydrophilic for aqueous formulations and oil-based versions suitable for creams and balms, depending on the extraction method.
Safety
Safety Profile
Generally regarded as safe with minimal irritancy concerns. While individual allergic reactions are always possible with any plant extract, it is rated as 'Irritant Free' by SkinSAFE and has a low concern rating from EWG Skin Deep® across various toxicity categories. It is listed in CosIng for its skin conditioning properties, though specific CIR, SCCS, or FDA approvals are not yet established.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Engelhardtia Chrysolepis Leaf Extract is a valuable botanical ingredient, offering extensive benefits including anti-aging, firming, barrier strengthening, and soothing effects, making it suitable for a wide range of skin types and concerns.
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