Results may be disappointing, however, because some of the injected fat may be reabsorbed by the body. This can lead to penile curvature or asymmetry and an irregular looking penis. Alpha Xtra Boost The most widely used surgical procedure to lengthen the penis involves severing the suspensory ligament that attaches the penis to the pubic bone and moving skin from the abdomen to the penile shaft. When this ligament is cut, the penis appears longer because more of it hangs down. Alpha Xtra Boost Reviews Although some surgeons offer cosmetic penis enlargement using various techniques, it's controversial and considered by many to be unnecessary and in some cases permanently harmful.