The only problem? No one's really sure if the stem cell supplement actually helps the fat grafts survive or, for that matter, what the long-term health risks of such implants might be. According to the Journal, "some doctors worry [that] the fat, when reinjected in the breast, could calcify and interfere with mammographic cancer screening. Another concern is that fat injections could increase the risk of breast cancer, because certain anticancer drugs work in postmenopausal women by inhibiting the production of estrogen, a hormone in fat tissue."
ps. nobody heard of a guy named kefah mokbel (not even good, old, google...)