Super Saiyan 5 is the strongest of all the Super Saiyan forms in the whole Dragon Ball universe, notably the only level beyond Super Saiyan 4 in Dragon Ball AF. It is the fifth and final form of Super Saiyan, the successor to all those that come before it. Son Goku was the first to achieve the form, through unknown methods. How to achieve the SSJ5 transformation is not known, though it has been shown that with Shenron’s tremendous ki added on to Goku’s, Goku was able to master the SSJ4 form, leading him to be a SSJ5, though he doesn’t have proper control of it just yet.
The transformation causes some stark changes in physical appearance. The trademark characteristic of the transformation is the user’s hair: the hair of the Super Saiyan 4 state changes drastically, and grows down to or sometimes passes the user’s waist, similarly like the SSJ3 form. But traces of the SSJ4 hair can be seen as well, forming bizarre hairstyle of silver hair. The brow ridge that is seen from the SSJ3 transformation is visible as well (though not as much as it is on the SSJ3). In this form, the Saiyan’s hair color differs, the same goes for the tail and the body is covered in silver fur. A Saiyan in this form also possesses a shadow trim around the eyes and over the eyelids that varies in color, such as a dark bluish-gray or crimson. A similar aura like the SSJ4 transformation erupts in a SSJ5 as well. The combined looks of the two forms that come before this presumably marks this as the final form of a Super Saiyan.