Sientra, Inc., a medical aesthetics company, develops and sells medical aesthetics products to plastic surgeons in the United States. The company offers silicone gel breast implants for use in breast augmentation and breast reconstruction procedures; and breast tissue expanders. It also provides body contouring and other implants, including gluteal, pectoral, calf, facial and nasal implants, and nasal stents; silicone elastomer oval carving blocks to treat congenital and other deformities caused by trauma or tumor removal; scar management products under the Medgel brand; saline-filled breast implant sizers to identify the correct style and size of implants; and non-breast tissue expanders for expanding tissue and skin surface area for burn care and other reconstructive use. The company was formerly known as Juliet Medical, Inc. and changed its name to Sientra, Inc. April 2007. Sientra, Inc. was incorporated in 2003 and is headquartered in Santa Barbara, California.