A lip flip is a treatment designed to give you fuller-looking lips without the need for dermal fillers. As we age, the upper lip shrinks and begins to vanish when smiling. By injecting BOTOX into the Cupids bow, a lip flip gently relaxes the muscles around the mouth and allows the upper lip to beautifully unfurl. Patients can see improvement in their look within a few days after their session. Depending on the skins elasticity, BOTOX results can last from 3-to 4 months.