Is it safe to get botox done on my face 3 weeks post lipo?

There should be no issues with Liposuction and Botox separated a few weeks apart.  The two procedures are independent of one another and shouldn't impact the results of either.  Good luck.  Of course, consulting with a board-certified plastic surgeon is always recommended.

Unless your face is swollen, you can safely have any neurotoxin in your face. Swelling can cause the neurotoxin to spread further than without swelling.Consult a board certified plastic surgeonBest wishes

Dear Cat1234567,Having Botox Cosmetic® done to your face to help subside the wrinkles or deep folds is not going to affect your surgery you had done three weeks ago to your mid-section.  Although having surgery can be a lot to take in when you are in recovery, this is unrelatedto the liposuction and fat transfer. Therefore, yes you will be fine if you are injected with Botox to your face.

Botox is used as a neurotoxin to "balance" strong muscles of facial expression.  It is generally safe to have Botox after liposuction and fat transfer, especially several weeks later.