Pterostilbene is a natural polyphenol and methylated analog of resveratrol with higher lipophilicity and bioavailability. It acts as a potent antioxidant, anti-inflammatory, and antiproliferative agent. In pharmaceuticals, it inhibits COX-1/COX-2, suppresses tumor cell growth, and exhibits antifungal and antibacterial activities. It is widely used in dietary supplements for cardiovascular support, lipid regulation, and anti-aging. In cosmetics, it serves as a skin-conditioning and antioxidant ingredient, protecting against UV damage and oxidative stress. It also functions as a food preservative due to its antioxidant properties. In research, it is used to study sirtuin activation, metabolic regulation, and cancer chemoprevention mechanisms.
