Sientra, Inc., a medical aesthetics company, develops and sells medical aesthetics products in the United States and internationally. It offers silicone gel breast implants for use in breast augmentation and breast reconstruction procedures; breast tissue expanders; and scar management products under the Sientra Round, Sientra Teardrop, AlloX2, Dermaspan, Softspan, and BIOCORNEUM brand names. The company also provides body contouring products; facial and nasal implants; saline filled sizers.