Science
Mechanism of Action
This extract functions as a potent antioxidant, effectively delaying the onset and reducing the incidence of UVB-induced skin damage and photoaging. Its photoprotective effects include preventing alpha-tocopherol depletion after UV-irradiation. Additionally, the extract exhibits anti-inflammatory properties, potentially by inhibiting matrix metalloproteinases (MMP-2 and MMP-9), as well as cyclooxygenase-2 (COX-2) and nuclear factor kappa B (NF-κB) pathways. It also acts as an astringent and a general skin protecting agent.
Research
Clinical Evidence
Medium confidenceN/A
Transparency
Dusting Analysis
While topical efficacy was observed with 0.1% of the active compound 4-nerolidylcatechol *within* the extract, the precise minimum effective concentration for the Pothomorphe Umbellata Leaf Extract itself in topical formulations is not explicitly defined in the provided studies. Therefore, assessing if the ingredient is 'dusted' without this specific extract percentage is challenging.
The Formula
Formulation
Stability
A gel formulation containing Pothomorphe umbellata root extract (with 4-nerolidylcatechol as a marker) maintained chemical stability at 5°C and 25°C for 103 days. However, it experienced degradation of its gel structure when stored at 45°C, suggesting temperature sensitivity for formulation integrity at elevated temperatures.
Safety
Safety Profile
Acute oral toxicity studies of the aqueous extract from Piper umbellatum (syn. Pothomorphe umbellata) leaves in rats showed no lethal effects at single doses up to 5000 mg/kg (LD50 > 5000 mg/kg). Sub-acute oral studies administered daily for 28 days at 400, 800, and 1000 mg/kg indicated it was relatively safe, though some effects like reduced body weight in female rats and increased white blood cells at the highest dose were observed. An ethanolic dried root extract containing 6.5% 4-nerolidylcatechol was found to be non-toxic in acute and subchronic oral toxicity studies in mice and rats, and also non-mutagenic. While these studies suggest general safety for oral ingestion, specific topical safety data regarding irritation or sensitization is not detailed in the provided information.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Pothomorphe Umbellata Leaf Extract is a valuable botanical ingredient, offering proven antioxidant and photoprotective benefits against UVB-induced damage, alongside promising anti-inflammatory properties, making it suitable for advanced skincare formulations despite some unknowns regarding specific topical concentrations and skin compatibility.
Related
Similar Ingredients
Finding similar ingredients…
References
Sources