Science
Mechanism of Action
This extract operates through several intricate mechanisms to enhance skin health. It actively neutralizes free radicals and mitigates oxidative stress, including damage specifically induced by blue light exposure. Its anti-inflammatory action involves disrupting pro-inflammatory pathways and reducing key markers such as NF-κB, TNF-α, IL-6, IL-8, and IL-31. Key active compounds, including coumarins, phenolic compounds, and especially chlorogenic acids (CA, NCA, CCA), are central to its efficacy. Furthermore, it inhibits matrix metalloproteinase-1 (MMP-1) activity, which aids in reducing the appearance of fine lines and wrinkles. Inhibition of tyrosinase activity contributes to reduced hyperpigmentation and a more even skin tone, while lipoxygenase inhibition helps to regulate sebum production, benefiting oily skin. Beyond these targeted actions, it enhances the migratory activity of epithelial cells, which is crucial for skin repair and wound healing. It also functions as a humectant, drawing and retaining moisture in the skin, and serves as a general skin conditioning agent.
Research
Clinical Evidence
Medium confidenceN/A
Key findings
- 01 Typical topical use levels in cosmetic formulations range from 0.5% to 2%, suggesting efficacy as an active ingredient for a variety of skin concerns, including antioxidant and soothing benefits.
- 02 An *in vitro* study on human corneal epithelial cells demonstrated enhanced cell migration activity dose-dependently, achieving a maximal increase of 59.3% at 0.01% (100 μg/mL). This concentration also boosted the expression of antioxidant genes such as catalase, heme oxygenase 1, and glutathione peroxidase 1.
- 03 Oral administration of Peucedanum japonicum leaf extract (25-400 mg/kg) in a rat model exposed to urban particulate matter (UPM) dose-dependently improved corneal wound healing. This was accompanied by a reduction in inflammatory and apoptotic cells, as well as decreased IL-6 expression.
Transparency
Dusting Analysis
The typical use levels in cosmetic formulations (0.5-2%) are significantly higher than the low concentrations where specific in vitro effects (e.g., 0.01% for cell migration) were observed. This suggests that the extract is generally incorporated at concentrations intended to provide active benefits for broader concerns like antioxidant and soothing properties, rather than being merely 'dusted' at sub-efficacious levels.
The Formula
Formulation
Safety
Safety Profile
Formal safety assessments by regulatory bodies such as CIR, SCCS, or FDA are not available for this specific extract. However, the ingredient has no GHS classification for hazards, hazard statements, or precautionary statements. Acute oral toxicity tests in rats, involving a single high dose of 5000 mg/kg, did not induce clinical toxicity or changes in body weight, suggesting a low systemic toxicity profile. INCIDecoder also rates its irritancy potential as low.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Peucedanum Japonicum Leaf/Stem Extract is a valuable botanical ingredient offering extensive antioxidant, anti-inflammatory, and reparative benefits, making it highly beneficial for comprehensive skin health and resilience.
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References
Sources