When it's time to lather those locks

WHO knew hair-washing could be so . . . complicated?

A lot of women, warned by beauty editors and websites that shampooing too often was the culprit for their parched strands and out-of-whack scalps, have cut back on their shampoo regimen.

Instead of regularly lathering up at home, a weekly routine might now go like this: a blowout at a blow-dry bar, dry shampoo, dry shampoo, dry shampoo, followed by another professional styling session, and so on.

While curbing excess washing has its merits, there are bound to be those who go overboard.

"The truth is, some of my guy clients have been coming in and asking me to tell their girlfriends, wives, lo…