I have a new article at Pterostilbene.com. The bottom line is that pterostilbene may be a “better resveratrol”. It is better absorbed, stays in the blood stream longer, and has a stronger effect on insulin metabolism and SIRT-1 than resveratrol. But resveratrol got there first, and there has been much more study of resveratrol in actual animal tests, so it will be a few years at least before we know for sure. Len Guarente’s MIT lab is where resveratrol got its start, and Guarente has recently launched a corporate spinoff to sell a pterostilbene formula.