Breast augmentation is one of the most commonly-performed cosmetic procedures worldwide. Unfortunately, many women require revisionary surgery related to unsatisfactory results or complications such as capsular contracture, implant malposition, and ptosis. While, historically, surgeons have relied on often-imperfect native tissue to correct these deformities, acellular dermal matrix (ADM) offers a new option for solving these difficult aesthetic problems. In this article, the authors provide background information about the role of ADM in providing excellent and lasting results to cosmetic breast augmentation patients, and they describe their method of subpectoral revisionary augmentation with ADM.