Gel injection on face

Injecting gel is applied in order to remove deep furrows and bumps in the face (and sometimes in the body).
Silicone gels (as page gels) were used for this purpose in the past. Since these gels have some side effects and also are non-absorbable and move under skin, their use is abolished nowadays and are just applied by restricted number of people. At the moment, the gels with less harmful effects are commonly used, all of which are absorbable and would not move under the skin.