A new study out of Ohio State suggests that grape seed extract can aid in wound recovery and reduce scaring. http://researchnews.osu.edu/archive/gdgrapes.htm This appeared to be from increased antioxidant activity in the incision site which helps fight infection and reduce inflammation. It also increases blood flow in the capillaries, which brings more blood to the incision to aid in healing. With that the skin can heal quicker and less inflammation means less scaring.
This is very beneficial in any sort of surgery, but especially cosmetic surgery where you absolutely want to minimize any scaring.
Not all grape seed is created equal though. What we personally use and recommend is USANA’s Proflavanol grape seed extract combined with a highly absorbable form of Vitamin C manufactured to strict FDA pharmaceutical manufacturing standards.