These are implants that work well as fillers for cheeks and lips and have the advantage of coming from your own body. However, the quantity injected isn’t what ends up staying in place.
In fact, transplanting fat is risky and in general, many sessions are required (spaced out between four and six months) in order to obtain the desired correction and look.
Over correcting the area that has been filled isn’t recommended as it may end up being too plumped up for a period of time, and the body will have difficulty reabsorbing the fat.