When using hyaluronic acid fillers for buttock and/or hip augmentation, if the doctor is truly using medical grade FDA approved materials then it will be extremely expensive to have 100+ cc injected (~ $ 800+ per cc). Keep in mind that when hip dips are augmented with implants, the smallest implant is 150mL in each side (300 mL total for two). With buttock implants, the smallest size used is 300 ml each side (600 ml total). So that means that only 240 mls of fillers is like a drop in the ocean and provides insignificant augmentation to the buttock unless you can afford $400,000.00+ every other year. So, if you're looking for a reliable, predictable, and long-term permanent option, buttock and hip implants are your solution. Please note that an extremely few number of board certified plastic surgeons specialize in buttock or hip implants, so you may need to travel far and away from home to find this particular surgeon. I hope this is useful information for everyone. Glad to help.