SlimLipo is an improvement on the older SmartLipo laser. Both of these lasers are used to deliver energy to the fat layer after local anesthetic solution has been infused. The SlimLipo (Selective Laser-Induced Melting) laser was designed to effectively melt fat cells while leaving intact the delicate connective tissue within the fatty layer. This selective laser energy has two advantages. One is that the melted fat cells are more easily removed from the body by liposuction using tiny microcannulas. Another advantage is that the heat from the laser causes contraction of the connective tissue structure, which results in three-dimensional shrinkage of the treated area and a smoother, tighter skin surface.