Fily sent me a quote for 500grams of piceatannnol - $16666.00 which makes it almost as expensive as gold on a weight for weight basis. I decided to pass Not sure how much Kingherbs will do it for but it would have to be a lot less before I would play... Perhaps you can get some indicative pricing?
It's said to be a food additive in Asia. At those prices, not in great quantity. Of course the Chinese eat powdered gold too, in the hopeful belief it will garner wealth. I will ask, but nothing much will happen before Chinese New Year.
N.B.: I am not wildly enthusiastic about taking piceatannol just because one study showed a new assay found it to be twice the activator of SIRT1 than resveratrol. Resveratrol acts by several different targets, and SIRT1 may not even be the most important. However there have been a lot of studies for resveratrol, far fewer for piceatannol (3754 hits on pubmed versus 378.) Maybe some of us should feed it to our pet mice first to see how they do. In yeast, resveratrol increases replicative lifespan, piceatannol does not according to one study (Howitz et al.
Small molecule activators of sirtuins extend Saccharomyces cerevisiae lifespan.
Nature 425:191-6 (2003).)
Although I think the risks of taking piceatannol are low, they are in fact unknown. We want to extend our lives long enough that advances in nano-technology and biochemistry and will increase lifespans by an order of magnitude. I think the best we can get from supplements including polyphenols is increased healthspan and perhaps with luck an extra ten years of life. Think of it this way: I collect and eat wild mushrooms, and there is a saying among my fellow mushroom eaters: There are old mushroom hunters, and there are bold mushroom hunters, but there are no old bold mushroom hunters.