Be wary of all cheap, too-cheap-to-be-true, products. If you suspect it may have come from Communist-oppressed China, you're better off spending a little bit more for a trusted brand name which clearly indicates it was made in, say, the U.S. or Canada.
Don't brush your teeth with automotive antifreeze, the chemical used inside an internal combustion engine's coolant fluid!
Read about the toxic Commie toothpaste here.