Wash your hair first and blow dry it thoroughly before use. Then open the lid and twist it clockwise to unscrew the paste. Unscrew the paste to the half position of the comb teeth, pull up the hair, and apply a small amount directly to the desired area multiple times, combing the hair while dyeing. Wait a moment for it to be completely absorbed, covering the original hair color, and it is gentle on all skin types. This is a one-time emergency color touch-up use. It is not suitable for full-head application and multiple excessive applications on the same area. Pay attention to control the amount during use. Do not touch or wear a hat after use. And wash your hair at night to avoid dirtying the sheets.