Resveratrol is present in small quantities in red grapes, red wine, peanuts, blueberries and some other plants. It is a polyphenol with a strong anti-oxidant activity.
It has become clear that chronic inflammatory processes are very significant factors in the development of various diseases and in aging process in the tissues. 
Another important fact is that many of the inflammatory processes are initiated by free radicals. Therefore, in many cases, anti-oxidants show effective anti-inflammatory activity and can diminish age-related processes in the tissue. Resveratrol is one of the most interesting materials regarding its potential to minimize tissue aging and to promote restructuring.
Resveratrol is today one of the most studied natural materials in the field of slowing aging process. It seems that its activity mimics the effect of "caloric restriction", an important mechanism associated with slowing the aging process. Caloric restriction (calorie restriction) is a dietary procedure that was to shown promote life expectancy in the animal world.