Abstract: A pharmaceutical composition is provided comprising a therapeutically effective amount of pterostilbene, a therapeutically effective amount of a polyphenolic-PVP extract of grape juice, and a pharmaceutically acceptable carrier. The embodiments of the pharmaceutical compositions can have lipid lowering properties, or alternatively can have properties that can treat oxidative stress, by decreasing inflammation or inflammatory processes contributing to neurodegenerative diseases. A method of lowering lipid levels in an individual is also provided, comprising administering to the individual in need of such treatment a pharmaceutical composition including a therapeutically effective amount of pterostilbene, a therapeutically effective amount of a polyphenolic-PVP extract of grape juice, and a pharmaceutically acceptable carrier, wherein lipid levels are decreased.