Facial rejuvenation with thread lifts is the latest trend to treat sagging skin on both the face and neck, as well as to generate biostimulation and a lifting effect without the need for surgery. The treatment with thread lifts consists of “introduction into the subcutaneous tissue of biological substances in the form of a thread with the aim of achieving a non-surgical self-induced biological lifting effect. The substances that make up this yarn are completely biodegradable and are completely reabsorbed over time.