No dye-lemma here: When Michelle Trachtenberg is filming in NYC — more than 2,000 miles from her L.A.-based hair colorist — she takes matters into her own hands with John Frieda's Precision Foam Colour.
VOTE: Which hair color looks hotter?
"It's foolproof," the Gossip Girl actress, 26, raves to Us Weekly about the solution, which comes in 20 colors.
VOTE: Which star has the best hair in Hollywood?
Her new favorite shade? Brilliant Brunette Deep Brown-Black ($12.99, ulta.com). "I'm naturally dirty blonde and I've worn a reddish brown for a bit," she says.
Like many blonde-born stars who have traded their sunny strands for darker locks (Audrina Patridge, Katy Perry, and Leighton Meester to name a few), the star absolutely loves sporting a deeper hue.
"I feel sexier when I'm dark! I love how darker hair brings out my eyes and also complements my pale skin," she tells Us.
