Beverly Hills: Byron &amp; Tracey, byronbeautyroom.com  Los Angeles: Sally Hershberger, sallyhershberger.com; Serge Normant at John Frieda Salon, sergenormant- johnfrieda.com; Woodley &amp; Bunny, woodleyandbunny.com  San Francisco: Salon Yuni, salonyuni.com  Santa Monica: Shin salon, shinhair.com  West Hollywood: Andy Lecompte Salon, andylecomptesalon.com; Kimble Hair Studio, kimblehaircare.com