PHYLLOSTACHYS PUBESCENS/EDULIS SHOOT SHEATH EXTRACT.

This extract functions as a powerful antioxidant, utilizing its rich concentration of phenolic compounds and polyphenols to neutralize environmental aggressors. It significantly contributes to skin hydration and elasticity by stimulating hyaluronic acid production, mediated by compounds like tricin. Its anti-irritation properties reduce redness and discomfort while simultaneously strengthening the skin barrier against external pollutants and moisture loss. For skin brightening, it effectively inhibits melanin synthesis and reduces tyrosinase mRNA expression, with specific active compounds identified as Betulinic acid, tachioside, and 1,2-dilinolenin. Anti-aging effects are observed through increased collagen production, attributed to tricin and (+)-lyoniresinol 9′-O-glucoside. Furthermore, it demonstrates antibacterial activity against specific pathogens, such as Staphylococcus aureus, and possesses anti-inflammatory capabilities by modulating NFkappaB and AP-1 pathways via its flavonoid content.