Miracle Leave-in For Blondes – A Bright Idea for Effortlessly Beautiful Hair. Now blondes really do have more fun thanks to our Miracle Leave-In Conditioner specially formulated to meet the needs of natural and color-treated blondes. Just like our original leave-in, Miracle Leave-In for Blondes de-frizzes, detangles, restores moisture, and enhances highlights, shine, and manageability without any dulling residues. Reverses damage from over-processing and heat styling while also removing brassy tones and maintaining vibrant color.