Contura's LTF is a new generation of filler. It is a long-lasting filler where the volume of the implant is given by water not from a solid product. The cross-linked components form a real gel, which does not contain any solid microparticles. This makes it soft and uniform. It is injected under the skin where it can't be seen or felt and remains in place permanently. Being mostly water, the body accepts the gel readily and only forms a thin membrane around the implant which helps to keep it in place; as the gel is very elastic it moves with all facial expressions.
Contura's LTF has now been used in cosmetic and plastic surgery for more than six years. Studies demonstrate that it is a safe product. Interim reports from a clinical trial started in January 2001 involving 243 patients in Europe, report no serious adverse events.