Hazrat Mahdi’s (as) face will shine like golden-bronze. It will be so bright that the true color of his skin will not be able to be seen.
(Bihar al-Anwar, Vol. 13, p. 263)
The hadith notes the beauty of Hazrat Mahdi’s (as) complexion. Many hadith state that Hazrat Mahdi (as), who will still appear to be around 40 even in advanced age, will have an exceedingly bright and healthy complexion.