It was narrated from Mu`adh ibn Jabal (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said:

“The people of Paradise will enter Paradise hairless, beardless with their eyes anointed with kohl, aged thirty or thirty-three years.”

(Narrated by At-Tirmidhi. Classed as sahih (authentic) by Al-Albani