Has anyone tried contouring injections?!

Lately, I'm concerned about my deep cheek fat on my face line.

The deep cheek fat makes my face look bigger and gives me a vicious impression.

I looked into contouring injections as a solution.

How effective can I expect from a single injection?

I'm also curious about the duration.

I heard that swelling or bruising may occur after the procedure, so please share your reviews if you've tried contouring injections!