I'm wondering if there is a high enough concentration of the resveratrol and green tea to really make any difference.   I'm doing some research on this now.  Also, I do think that the higher strength Vitamin C serums 15-20% may give better results than the green tea products but so many people can't use those due to irritation.  I think the green tea is a nice alternative for those who are more sensitive. Here is more information on repair products.   Dr. I