Where is the Greatest Amount of Usable Fat Located for a BBL?

If you have excess inner thigh fat and good skin tone, the inner thigh is a good donor site. Liposuction for Brazilian Butt Lift is designed to optimize the harvest and the appearance.  Everyone has fat harvested from their lower back and flanks which also enhances the buttocks.  Discuss where you would like to have fat removed with your surgeon.

Hello dear!
Thanks for the question and provided information as well.
Fat can be harvest from many areas: arms, abdomen, back, flanks, thighs, etc.
In general, you need to be physically healthy and at a stable weight, have realistic expectations, be a non-smoker and your BMI needs to be 30 or less.
l recommend you to make an appointment with a board certified plastic surgeon to talk about your goals and anything you need to know.
Good luck :)

If a patient doesn't have any concerns about fat deposits in the body and is only looking to augment the buttocks then I typically try to suggest harvesting fat from areas I think will most likely improve her shape independently of the buttock augmentation. If one or more of these areas consists of 'stubborn' or hard to eliminate fat - all the better. In these instances the hope is that as the patient's weight fluctuates she will not lose weight and volume in the buttock if the fat placed there was relatively diet 'resistant'. To be honest fat transfer is an evolving art and science. We are all looking for the best way to harvest fat, prepare fat and re-inject fat. Many of us surgeons have our preferences but no one technique has gained predominance. It appears that good results can be had with a number of differing techniques. If your surgeon has the experience and an artistic eye, he will be able to let you know which areas will be the best for harvesting fat - in a way that will enhance your overall result. Best of Luck  Dr Harrell