Though it’s believed that Simpson has undergone several plastic surgery procedures, according to the singer, she has only received one: lip fillers. In 2006, Simpson told Glamour that she regretted plumping her lips with Restylane, which gave her a “fake” look that she was desperate to get rid of.
I had that Restylane stuff. It looked fake to me. I didn’t like that,” Simpson said. “But it went away in, like, four months. My lips are back to what they were. Thank God!”