Science
Mechanism of Action
This extract is rich in antioxidants such as quercetin, lutein, α-tocopherol, anthocyanins, chlorogenic acid, and rutin, which collectively provide robust protection against environmental stressors and contribute to anti-aging benefits. Its key active compound, polygodial, exhibits powerful anti-inflammatory, anti-allergic, and antimicrobial properties. Polygodial also interacts with and inhibits the TRPV1 channel, effectively reducing neurogenic inflammation and soothing skin irritation. For stretch mark improvement, the extract works by restoring the dermal matricial environment and increasing the production of vital components like pro-collagen I, elastin, and TGF-β. Additionally, its rutin content may strengthen capillary walls, potentially diminishing the appearance of dark undereye circles.
Research
Clinical Evidence
Medium confidence2%
Transparency
Dusting Analysis
Clinical benefits, particularly for stretch mark improvement, have been demonstrated at a precise concentration of 2%. While no explicit dusting threshold is provided, formulations containing significantly less than this concentration may not deliver the full spectrum of reported benefits, especially for its more targeted actions.
The Formula
Formulation
Conflicts
- Potential irritation when combined with other problematic fragrance ingredients due to naturally occurring eugenol.
Safety
Safety Profile
EWG Skin Deep indicates low concerns for cancer, allergies & immunotoxicity, and developmental and reproductive toxicity. Extracts have been found to be non-toxic in bioassays with LC50 values exceeding 1000 µg/ml. While generally considered non-irritating, the extract naturally contains fragrance chemicals like eugenol, which could potentially cause irritation in susceptible individuals, particularly at higher concentrations or when combined with other problematic ingredients. Safety data recommends against its use as a fragrance or flavor ingredient due to this potential.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Tasmannia Lanceolata Leaf Extract is a valuable multi-active ingredient for advanced skincare, offering significant soothing, antioxidant, and anti-aging benefits, alongside clinical evidence for improving stretch marks.
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References
Sources