I would say that starting early is not a terrible idea. I am 24 and a year ago received a smaller session (1319 grafts with Dr. Dorin) in my frontal regio to restore the hairline and to fill in the sides. The results have been amazing. I started to lose my hair and got jipped on the EXT Program from HairClub (WHAT A JIP). I immediately stopped that, got on Minoxidil and 1.25 Proscar, which stabilized my loss and received a transplant in January 2008 from Dr. Dorin. I'll tell, as many others can contest, it was a great idea and I am EXTREMELY happy with the results. The key is, as Thana states, to MAKE SURE YOU GET AN ELITE DOC TO DO THE WORK. This is such a critical aspect and I want to stress this as much as I can. Get an elite doc to work on your head, and to plan a regimen. I am finishing up law school and though my hair looks amazing now, hair loss is progressive and I am thoroughly content with realizing that I will seeing Dr. Dorin to do subsequent surgery.