TMG (Betaine) taste

I ordered some TMG (Betaine) - not Betaine HCL which to my understanding is for increasing acidity in one’s stomach.

But my TMG is extremely acidic, just like vitamin C or more acidic in taste. Does it have such taste? Or did I buy a Betaine HCL in a box claiming it to be TMG?

I just tried my TMG from Nutricost and it has a mild sweet taste like regular Glycine.