E.p.t.q. S500 has the highest density and is the thickest of the 3 e.p.t.q. fillers. It also adds the most volume. E.p.t.q. S500 is ideal to use for stronger enhancements and augmentations of the facial area and it is recommended for cheekbones, chin, and nose bridge. The filler consists of highly purified and stabilized hyaluronic acid. The viscoelasticity and the homogeneous particle implementation technology make it easy to mold the desired facial shape and can fill deep and severe wrinkles. S500 should be injected into the deep subcutaneous layer and contains lidocaine. The results last between 6-12 months.