Sientra, Inc. is a medical aesthetics company. The company's primary products are silicone gel breast implants for use in breast augmentation and breast reconstruction procedures, which it offers in over 150 variations of shapes, sizes and textures. The Company sells its breast implants and breast tissue expanders, or breast products to plastic surgeons. The Company offers a range of breast implants, including anatomically-shaped textured, round textured and round smooth. It also offers a line of breast tissue expanders, most of which are marketed as ACX, in 25 different shapes and sizes that include single and double chamber tissue expanders. In addition, it offers a range of other aesthetic products, including: body contouring and other implants; silicone elastomer oval carving blocks; scar management specialty products; temporary, single-use, saline-filled breast sizers, and non-breast tissue expanders.