Jane's Addiction » Gray Away
Gray Away
Joico Tint Shot Root Concealer, $18, joico.com.

Gray Away

W’s beauty director shares her hair color secret.

My gray hair always seems to grow in before I can get to the colorist, so this spray is a lifesaver. Not only does it do a great job of covering my roots, but its super-precise nozzle makes application a 30-second breeze!

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