I think you're thinking of Tabasco. Which is supposed to be bland as it doesn't exist to impart new flavors so much as rather make the thing you're eating hot and slightly acidic. Serves a purpose. Hot sauce is a spectrum of intensity and flavors and Tabasco is definitely on the subtle side of the flavor spectrum.

It might have been Cholula brand tabasco. I don't remember.

Most of the time that's Tabasco sauce.

Tabasco, tapatio, and Cholula are very common in Mexican restaurants in CA