What are the differences in benefits between green tea extract and grape seed extract?
ActiVin or grape seed proanthocyanidins are Sustained release antioxidants, and thus these antioxidants remain in the body upto 7-10 days following ingestion. While green tea antioxidants remain in the body upto 7-12 hr maximium. You need a lot of green tea extract to perform like ActiVin. But, even with lot of green tea it is not possible to perform like a sustained release antioxidant.