I regret getting Botox for my chin when I was receiving dental root canal treatment. I only chewed on one side while the Botox was taking effect, so I ended up with a chipped chin . Botox is not permanent and will eventually come back, but it remains! Also, I have sagging cheeks. I'm very thin, but I do have some cheek fat. It's not a lot, but it's probably because my muscles are shrinking, so they're sagging. I think it would be a good idea to get a lifting laser as well.