Science
Mechanism of Action
LAVANDULA ANGUSTIFOLIA LEAF CELL EXTRACT primarily functions by upregulating the Nrf2 signaling pathway, a pivotal cellular defense mechanism. This activation leads to increased expression of antioxidant response element (ARE) genes and associated antioxidant enzymes, alongside a downregulation of Keap1, enhancing the skin's capacity to neutralize free radicals, inhibit lipid peroxidation, and elevate glutathione levels. Furthermore, the extract provides anti-inflammatory benefits through components such as prostanoids and histamine, and is rich in antioxidants like flavonoids and phenolic acids. It also aids in balancing the skin's oil production.
Research
Clinical Evidence
Medium confidenceN/A
Key findings
- 01 A clinical study demonstrated that Lavandula angustifolia leaf callus extract (LCE) significantly enhanced human skin cell viability, reduced oxidative stress, and decreased melanin content. Further clinical tests confirmed LCE's ability to improve skin barrier function, visibly reduce redness, and protect against the adhesion of particulate matter.
Transparency
Dusting Analysis
While this ingredient offers notable benefits, the general Lavandula Angustifolia extract is advised to be used below 0.1% in leave-on products due to potential for severe allergic reactions. As it's classified as an allergen, formulators might use it at concentrations below the generally effective range (e.g., below 0.015% for general extract) to mitigate sensitization risk, potentially rendering it sub-efficacious and merely a 'dusting' ingredient on the label.
The Formula
Formulation
Stability
The stability of LAVANDULA ANGUSTIFOLIA LEAF CELL EXTRACT is matrix-dependent; extreme pH levels can induce changes in its color or odor over time. Mitigating light and oxygen exposure through appropriate packaging, along with the use of compatible antioxidants, can help maintain stability. Instability, such as haze, may occur in emulsions, gels, or surfactant bases, necessitating careful checks of the carrier system, optimization of ingredient addition order and pH, or evaluation of filtered grades/different solvent systems. Batch-to-batch variability can be perceptible, requiring stringent specifications and quality controls. Compatibility with preservatives and chelants also warrants consideration.
Safety
Safety Profile
The specific safety status of LAVANDULA ANGUSTIFOLIA LEAF CELL EXTRACT by CIR, SCCS, or FDA is currently not documented. However, general Lavandula Angustifolia extract is deemed safe for cosmetic applications up to 0.1%. Exceeding this concentration, particularly in leave-on products, significantly increases the risk of severe allergies and rashes. It is classified as an allergen in Europe (for the general extract), and individuals with sensitive skin are strongly advised to avoid products containing it. Patch testing is recommended prior to full application due to potential individual sensitivities.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Despite its compelling benefits for skin resilience, clarity, and protection, its classification as an allergen and documented risk for sensitive skin necessitate extreme caution and potentially limited application in precision skincare formulations.
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References
Sources