A lip flip is a procedure that gives your lips a more pouty look. During the procedure, a doctor injects Botox into your top lip only. To maintain the look, you need to get the procedure redone ...

For those who may be unfamiliar, a lip flip is meant to make your lips look fuller by injecting a few units of Botox into the corners of your mouth and edges of your lips, per Cleveland Clinic.

Another expert, Dr. Mark Solomos, speculated that Tiffany may have opted for a "lip flip," a non-surgical procedure using Botox to create the illusion of fuller lips. He also noted that her smooth ...

Experts weigh in on the singer's experience from the procedure and point out important information about Botox to keep in mind.