The first biodegradable sutures were used in the 1960’s for medical use. In the 1990’s, a plastic surgeon cut notches in the surgical sutures he was using to implement on a car accident victim’s face by threading them under the skin. He felt these mesh sutures, or “threads,” would be a good aesthetic tool. Many types of thread came into use but were non-absorbable and eventually taken off the market. Around 2010 surgeons in Korea began using Polydioxanone (PDO) threads” for aesthetic lifting and tightening of the skin. They were FDA approved in 2016 and considered strong and flexible and safely absorbed into the body about 4-6 months after insertion.