Silicone gel-filled breast implants were developed in 1962, however, failed to obtain approval of the U.S. Food and Drug Administration until 1976 and were not classified as class III devices until 1988. In 1992, U.S. FDA declared a moratorium on the sale of silicone breast implants. On November, 2006, the U.S. FDA approved Allergan and Mentor's application to market its silicone-filled breast implants. On July, 2007, the Korea FDA approved the application of both manufacturer's. Cohesive silicone gel implants are more soft and natural than saline implants. Therefore, most patients for breast augmentation nowadays tend to choose cohesive silicone gel implants. The author think that cohesive silicone gel implants are more suitable for thin Asian patients. Many patients who had saline implants want to replace saline implants with cohesive silicone gel. I strongly believe that many more patients would like to make similar decisions in future.