Is TheraBreath really effective?

I haven't bought it yet, so to what extent

I'm curious if it prevents bad breath and what it feels like to use.

Does anyone know?

Is it because I'm wearing the retainer... or is it because I've gained weight?

Is it a side effect of COVID... Even though I brush, floss, and gargle diligently

Lately, I've been having really bad breath.

When I went to get a scaling, I asked if I had any tonsil stones by any chance.

You told me that such a thing doesn't exist, so I am asking because I would like to resolve it using TheraBreath.