Science
Mechanism of Action
This oil functions as a powerful antioxidant by reducing oxidative stress and activating the Nrf2 pathway to enhance endogenous antioxidant enzymes. It exhibits significant antimicrobial properties against various pathogens, including Staphylococcus epidermidis and Staphylococcus aureus, helping to purify the skin. Furthermore, its anti-inflammatory effects are mediated by suppressing key inflammatory cytokines (IL-33, IL-6, IL-8) and inhibiting JAK1/STAT1 and NF-κB signaling pathways. It also strengthens the skin's barrier function by increasing the expression of vital proteins like filaggrin and claudin-1, while its natural Vitamin C content supports collagen production, contributing to youthful skin and a more even tone.
Research
Clinical Evidence
Medium confidenceN/A
Key findings
- 01 Demonstrated strong antioxidant activity, achieving 81% inhibition in the DPPH test at an IC50 of 0.52 ± 0.0007 mg/mL.
- 02 Exhibited significant antibacterial activity, with minimal inhibitory concentrations (MIC) ranging from 1.70 to 10.00 mg/mL against various pathogens, notably effective against Staphylococcus epidermidis (1.70 mg/mL) and Staphylococcus aureus (3.33 mg/mL).
- 03 A hydro-ethanolic extract of parsley significantly improved cell viability, reduced reactive oxygen species (ROS) levels, alleviated oxidative stress via Nrf2 pathway activation and enhanced antioxidant enzymes (SOD, CAT) in human keratinocytes. It also suppressed inflammatory cytokines (IL-33, IL-6, IL-8) by inhibiting JAK1/STAT1 and NF-κB signaling, and increased skin barrier proteins (filaggrin, claudin-1). In an in vivo mouse model, it effectively alleviated atopic dermatitis-like symptoms.
Transparency
Dusting Analysis
Information regarding 'dusting' or concentrations below typical efficacy thresholds for Petroselinum Crispum Seed Oil is not available in the provided research data.
The Formula
Formulation
Stability
The terpenes within Petroselinum Crispum Seed Oil are susceptible to polymerization under strong oxidation, necessitating the inclusion of antioxidants in formulations to maintain stability. This ingredient is also classified as flammable.
Safety
Safety Profile
Recognized as Generally Recognized As Safe (GRAS) by the FDA for food use. However, it is classified as an irritant (Xi) and can be irritating to skin and eyes (R 36/38), with recommended precautions during handling (e.g., suitable gloves and eye/face protection). Dermal toxicity is low, with an LD50 > 5000 mg/kg in rabbits and guinea pigs. Oral LD50 values are 3300 mg/kg in rats and 1520 mg/kg in mice. The maximum concentration of 5.0% is an IFRA recommendation for use in fragrance concentrates, not a definitive cosmetic safety limit for all applications.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Petroselinum Crispum Seed Oil is a valuable ingredient, offering comprehensive benefits through its potent antioxidant, antimicrobial, and anti-inflammatory actions, making it particularly effective for addressing oxidative stress, blemishes, and enhancing skin barrier integrity, especially for oily and normal skin types.
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