Science
Mechanism of Action
Centella Asiatica Leaf Cell Extract operates by stimulating fibroblast proliferation and significantly increasing the synthesis of collagen types I and III, alongside intracellular fibronectin, to enhance the skin's structural integrity and tensile strength. It also boosts the production of glycosaminoglycans, including hyaluronic acid, leading to improved hydration and inhibiting the inflammatory pathways associated with scar formation. Furthermore, it provides strong antioxidant defense against free radicals, reinforces the skin barrier via ceramide production, reduces redness, and accelerates tissue regeneration.
Research
Clinical Evidence
High confidence0.5%
Key findings
- 01 Recommended concentrations in cosmetic formulas for Centella Asiatica Leaf Cell Extract range from 2% to 20% to achieve its regenerative, antioxidant, and reparative properties.
- 02 For wound healing, 0.5% of Centella asiatica extract (in carboxymethyl cellulose) is optimally used, accelerating wound closure and increasing collagen II and III expression; paradoxically, higher concentrations may lead to undesired effects.
Transparency
Dusting Analysis
While Centella Asiatica Leaf Cell Extract demonstrates optimal efficacy for wound healing at 0.5%, and is proven non-irritating at 0.2%, cosmetic formulations targeting its broader regenerative, antioxidant, and reparative properties are typically recommended to contain between 2-20%. Therefore, concentrations below 1.0% may be considered insufficient for achieving comprehensive benefits, with levels below 0.1% likely indicative of 'dusting' for most claims.
The Formula
Formulation
Stability
Ethanol extracts of Centella asiatica show optimum antioxidant activity at neutral pH, suggesting stability within the optimal pH range.
Safety
Safety Profile
The Cosmetic Ingredient Review (CIR) Expert Panel concluded that Centella Asiatica Leaf Cell Culture Extract is safe in current cosmetic uses and concentrations when formulated to be non-sensitizing. A 0.2% concentration did not cause skin irritation or allergic contact dermatitis in human tests. However, extremely high concentrations (e.g., 30% in guinea pigs) have been classified as a weak sensitizer, indicating that very high percentages should be avoided.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Centella Asiatica Leaf Cell Extract is a highly valuable ingredient for its multifaceted ability to regenerate, soothe, and protect the skin barrier, making it suitable for all skin types and a wide array of precision skincare formulations.
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