There is no predetermined amount of fat needed to perform a BBL, as it varies based on the desired outcome and the patient's body type. However, a patient with a body mass index of less than 20 would not be a good candidate.
Generally, a surgeon may need to liposuction at least 2 to 3 liters of fat, which is then processed and purified, with a portion of this fat transferred to the buttocks. However, not all the harvested fat is used for transfer. The exact amount depends on the existing volume of the buttocks, the patient's goals and the surgeon's assessment.
