If you go to Niagara Falls, NY, just cross at Queenston-Lewiston Bridge. Exit off the highway at Porter and go left to Military Road. I bought L-carnitine at Vitamin City in a plaza on the south side of the road. (I think it's where the Walgreen's is, but you could find the address on the internet)

By the way, I never did feel as though it had any effect. It's supposed to help fat burning but even Dr. Atkins said that it had to be VERY BIG doses. And that would be very expensive.