This is pretty old, thought I'd revive it.
I just recently (within the last month) started taking NO2 Platinum, which is a nitric oxide (vasodilator) product to increase blood flow and perfusion.
Other than, I take some things for my bad joints. Osteo Bi-Flex and fish oils.
Of course, multi-vitamins.
I get L-glutamine and BCAAs from my protein shakes which I have in-between meals to gain mass