Oil Slick Rainbow Hair for the Holidays

Though my original plan was to update my hair and sort of transition back to more natural tones (like a mix of various coppers and caramels, maybe with one vivid color as an accent), my go-to colorist, Lauren, just got married and is heading off on her honeymoon and I didn’t think to book ahead (oops!) and I couldn’t want to wait until January 2020 to see her… so I decided that it was an