Sadly, with the popularity of buttock augmentation on the rise, there are cropping up tons of phony marketing of methods and product to "easily and quickly" enlarge the buttock. There are only two proven safe and relatively effective methods for Buttock Augmentation: 1) Autologous Fat Transfer (using your own fat, transferring from one area of the body to the other) and 2) Buttock Implants (semi-solid silicone rubber implants that cannot rupture &/or leak). Both are good options so what it comes down to, like any surgery, is proper patient selection. Indeed because at least 50+ % of the fat transferred will melt away within a year, most patients are not good candidates because they lack an adequate amount of fat to harvest. Another tip is that if you purposely gain weight (i.e. fat) for the procedure, the fat you lose first as you get back to your baseline weight is that very same fat that was transferred into your buttock...so don't fall victim to this recommendation. Although using your own fat is relatively safe, the one serious complication that can rarely (< 1%) happen is "fat embolism" in which some of the fat gets into the blood stream and travels up into the lungs, heart, and/or brain causing serious problems. This complication is more likely to happen with the larger amount of fat being transferred. This is even more likely to happen when using fillers like PMMA and hyaluronic acids. Also fillers, when injected in large quantities, have a relatively high tendency to migrate away from the original area they were placed and tend to stimulate a lot of inflammation and a subsequent disastrous amount of scar tissue/hardening. Thus buttock implants become a very good, safe, and long term reliable option for most patients seeking buttock augmentation (at least in my practice). I prefer to insert the buttock implants through a single 2 ½ inch long incision over the tailbone (concealed within the crevice between the buttock cheeks). The buttock implant should always be placed under or within the gluteus maximus muscle. In this position, the implant is less palpable, less visible, and does not sag or shift/migrate over time unlike implants placed on top of the muscle. Therefore it is extremely important to seek consultation with a board certified plastic surgeon who specializes in this procedure. And in this case too, at least in my surgical practice, the infection rate is minimized to ~5%. Glad to help.