hair color problem (for male)...............................?

It depends on what was his natural hair color and what color he applied to his hair. If he used a darker color, he could use L' Oreal ColorZap Haircolor Remover. He can get this at Sally's. However, if he lightened it, this procedure is a little more complicated. He might be able to apply a darker color, one that is close to it's original color. If it is too much of a contrast, he might have to use a filler before adding the color that is close to his natural color. If this is the case, again he should go to Sally's where they can suggest the right filler and shade to achieve the right color correctness.

first, you should go to your doctor to rule out an illness. Does balding run in your family? Minoxidil and Propecia are probably the most effective at-home solutions for regrowing hair or, in Propecia's case, stopping further hair loss. The article below lists several other solutions, but I urge you to check in with your doc before you do anything - the better the diagnosis of what's causing the problem, the better the solution will work.