Restylane Kysse is a clear injectable gel composed of hyaluronic acid (HA). HA is a naturally occurring sugar, found in the human body. Restylane Kysse is crosslinked with BDDE, an ingredient that helps form a network of HA to provide a gel filler that lasts longer. HA fillers, including Restylane Kysse, contains HA that has been modified to last longer in the body than the naturally occurring HA. Restylane Kysse contains 0.3 % lidocaine to reduce pain during injection.
Restylane Kysse is injected into the lips and the lines around the upper lip to temporarily add fullness to the lips and help smooth the wrinkles around the upper lip (perioral lines) in patients over the age of 21.