John Frieda Go Blonder In-Shower Lightening Treatment
The product: John Frieda Go Blonder In-Shower Lightening Treatment ($9)
Why we want it: Maintaining gorgeous blond hair isn't easy. It seems like just a few days after a salon visit, strands start looking brassy and dull. This incredible treatment actually lifts dyed hair a shade with just one wash, letting you stretch the time between color appointments.