Science
Mechanism of Action
This seed oil, often referred to as PURO, is abundant in essential fatty acids such as linoleic acid, oleic acid, palmitic acid, and stearic acid, which are critical for maintaining a robust skin barrier. It actively supports barrier repair by enhancing the expression of tight junction proteins (e.g., TJP1, Claudin 5) and key skin barrier structural proteins (e.g., loricrin, filaggrin, involucrin, Caspase-14, Bleomycin hydrolase, ceramide synthase 3, transglutaminase-1). The oil promotes cellular migration and effectively reduces transepidermal water loss (TEWL), while simultaneously boosting hyaluronic acid (HA) content and improving transepithelial electrical resistance (TEER) for superior hydration. Furthermore, it exhibits anti-inflammatory effects by inhibiting inflammatory markers including IL-1α, IL-8, and PGE2, alongside potent antioxidant capabilities.
Research
Clinical Evidence
Low confidenceN/A
Transparency
Dusting Analysis
The Formula
Formulation
Stability
Prinsepia Utilis Seed Oil demonstrates a high oxidative stability index, indicating resistance to degradation. It maintains physicochemical stability, as evidenced by its successful incorporation as a base in pharmaceutical soap formulations with a pH of 7.3.
Safety
Safety Profile
Acute toxicity studies conducted according to OECD guidelines 423 determined Prinsepia Utilis Seed Oil to be non-toxic. In vitro tests utilizing reconstructed skin models indicated no skin irritation. While a formal CIR or SCCS assessment is not available, the ingredient is generally regarded as safe and non-irritating for use in cosmetic formulations.
Your Skin
Skin Compatibility
Our Assessment
Verdict
Prinsepia Utilis Seed Oil is a valuable ingredient, offering comprehensive support for skin barrier function, hydration, and soothing properties, suitable for all skin types due to its low irritancy and comedogenicity.
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References
Sources