In addition to giving the appearance of fuller lips, a lip flip can reduce gum exposure when smiling and soften the lines around the mouth commonly referred to as “smoker’s lines.” A small amount of neurotoxin is injected to target areas around the mouth which relaxes the underlying muscle causing the upper lip to “flip” up just a bit. Results typically last about 2 months and vary depending on your natural lip anatomy. A lip flip is a great stepping stone to lip filler if you aren’t quite ready to take the lip filler leap.