How long does the effect last after getting a fat-dissolving injection?

The price of fat-dissolving injections wasn't that expensive.

I thought it might be okay to try a light hit.

It feels like the fat just won't go away in places like my arms no matter what I do.

I am wondering how long the effect lasts if I get this kind of injection in such cases.

Honestly, I don't think it will be visible with just one try.

I'm also curious how many times I would need to get some effect.