Resveratrol, does it work?

[ariadneoliver]

I've been seeing ads for some supplement from Boots containing essence of red wine and Japanese knotweed. Does anyone have experience of it, is it any good or am I going to be annoyed at spending £25 that would have been better spent on actual red wine?

Yes. I'm a bit late to the party, but it works.
Currently 3 for 2, and 15% off on top. I'm getting 6!