I have seen quite a few patients with injections of various substances to the buttocks. Trying to remove these items when problems arise can be very challenging and deforming to the patient. You may want to consider getting your own fat transferred to your buttocks. I perform about 500 Brazilian buttlifts each year, and this procedure is the most surgeon dependent plastic surgery procedure. Find a plastic surgeon with ELITE credentials who performs hundreds of Brazilian buttlifts each year. Then look at the plastic surgeon's website before and after photo galleries to get a sense of who can deliver the results.
Kenneth Hughes, MD Los Angeles, CA