LaViv is a new facial filler that uses a small amount of your own skin cells to grow a natural filler material in a laboratory. The substance grown from your own cells is then injected to reduce wrinkles in the skin. It has been reported to last approximately 6 months. The main feature of LaViv is the manner in which it is created from your own body, reducing any chance of an adverse reaction.
RealSelf describes the filler on their site, with a reference to one of Dr. Kotlus' patients who underwent Perlane treatment for nasolabial and marionette lines: http://www.realself.com/blog/laviv-own-skin-repair-wrinkles