The amount of fat that can be transferred to the buttocks during a Brazilian Butt Lift (BBL) procedure varies depending on several factors, including the individual patient’s anatomy, how much space is in the buttocks, how tight the buttock skin is attached, and the amount of excess fat available for harvesting from other areas of the body. Dr. Xu always aims to transfer enough fat to achieve the desired contour and shape of the buttocks, while also balancing factors such as skin tension to ensure that the transferred fat cells can survive and properly integrate with the existing tissues.