SIEN

Sientra Inc

A medical aesthetics company that makes FDA-approved silicone gel breast implants, tissue expanders, scar gel, and body-contouring products used by plastic surgeons. Founded in 2003 as Juliet Medical by industry veteran Hani Zeini, it was renamed Sientra in 2007 and won FDA approval in 2012 — breaking a two-decade duopoly in the U.S. implant market and becoming the first company to offer shaped "gummy bear" implants here. Its name is a coined brand term, not a word with a dictionary meaning.