Is it DMSO (dimethyl sulfoxide)? I used to have to buy that at farm and ranch places or vet supplies. Did good, but made you smell a wee bit like you had garlicky stuff for lunch.
I got put on to it (this was way before the net) by a horsey person who said they used it as "horse liniment," especially for jumping horses.
I didn't abandon it, but at the time, my aches and pains weren't really that bad, so I just sort of forgot about it after a while.
TNX fer reminder.
Terry