David Sinclair[0] is wealthy and well known for his work in longevity. He Sold his company to GlaxoSmithKline for $720 million.
D Sinclair's earlier work was on resveratrol, and there's some more products coming. Well, actually one has arrived—in the US at least: http://www.elysiumhealth.com/
[0] http://en.wikipedia.org/wiki/David_Sinclair_%28biologist%29