A surprising number of testers revealed a dirty secret: stripping down when coloring to avoid staining clothes. If that's not your style, wear an old button_front shirt or robe that way, you won't have to lift anything over your head when it's time to rinse. You can also lay down garbage bags instead of covering surfaces with towels or sheets, which can soak through and need washing. Keep your chapstick handy : There's nothing worse than ending up with stripes of color on your forehead. Rather than using a goopy salve to protect skin from dye, glide a clear solid lip balm along your hairline, Hill says: "Its small size makes for concise application."
You must condition when you're done. "If you skip the conditioner step, it leaves the cuticle open and the color keeps working," says Ionato. "So don't be surprised if you end up with much darker hair than you wanted." Don't throw away the conditioner in the kit, and if you do, make sure to use a deep conditioner in the shower after you rinse out the dye.