PEUCEDANUM JAPONICUM ROOT EXTRACT.

This extract operates as a sophisticated anti-inflammatory agent by inhibiting the phosphorylation of crucial signaling molecules like NF-κB, Akt, ERK1/2, and p38 MAPK. This action significantly reduces the release of inflammatory mediators such as histamine and various cytokines (e.g., TNF-α, IL-6, IL-8, IL-31), while also decreasing the expression of iNOS and COX-2. As an antioxidant, it bolsters cellular defenses by increasing Heme Oxygenase-1 (HO-1) expression via NRF2 nuclear translocation and effectively neutralizes reactive oxygen species (ROS), including those generated by blue light exposure. Its anti-aging efficacy stems from reducing intracellular ROS, suppressing matrix metalloproteinase-1 (MMP-1) activity (which degrades collagen), and simultaneously enhancing the production of type I collagen (COL1A1) in human dermal fibroblasts, thereby preserving youthful skin structure.