Has anyone seen results from arm fat-dissolving injections?

My upper arms are particularly hard to lose fat from, so
I am considering fat-dissolving injections.

Even if you combine exercise and diet
The arm lines change particularly slowly, so
I am considering getting partial help from a procedure.

However, fat-dissolving injections
It is difficult to gauge the extent of the effect.
I am having trouble making a decision.

Whether there is a change after one or two times
Or I am wondering if it needs to be repeated several times.

Also, is it simply a size reduction?
I am also wondering if I can expect the lines themselves to feel more organized.

The frequency or duration relative to the effect
I want to know what criteria I should use to make a judgment.