Thank you Lisa for your question.#FatGrafting is a delicate procedure and the ultimate goal is to have each transferred cell acquire new blood vessel and survive.For that reason, it is important to harvest fat with a small cannula at very low suction, as to minimize trauma to the fat cells. Then, injecting the fat cells slowly and in multiple layers will help separating each cells and will increase their chance for survival.In my #Toronto practice, I do use a modified Coleman's technique along with tumescence solution when I perform the so-called Brazilian Butt Lift procedure (#BBL).When a lot of fat is available, then we can favour the stem cell transfer, which are smaller fat cells and also more likely to survive. However, usually the amount required for buttock augmentation requires all harvested fat to be transferred for maximal augmentation.When performing the buttock augmentation with fat, technique and artistry are important but also the meticulous and delicate work of your #PlasticSurgeon.You may also check my blog as I wrote many blogs on the buttocks.Hope this helps!All the best,#DrMarcDuPere, board-certified Toronto plastic surgeon