Polylactic acid (PLA), the main component of Silhouette Soft® is a well-known polymer that has been used for many years in a number of biomedical and pharmaceutical applications. It has a long history of use as resorbable suture, a drug delivery system and in surgery - in particular in orthopaedic fixation devices such as pins, rods and screws. It is also a key material in the development of tissue engineering.
Silhouette Soft® are made of a Poly L-Lacitc Acid monofilament with molded cones made of Lactide/ Glycolide. It was developed by scientists in the USA using reconstructive and aesthetic surgical expertise.
The suture acts as scaffolding under the surface of the skin to lift sagging soft tissues. The cones both hold the threads in place, and in time stimulates the body’s production of collagen to replace depleted facial volume which diminishes with age.