DIY Dip Dyed Ponytail Using Semi Permanent Dye. Photos: Kristin Ess + Lauren Conrad, post designed by Eunice Chun. Tutorial by The Beauty Department here, done on Lauren Conrad. The instructions are for people with lighter colored hair ie NOT brunettes. Post on Guide to Dying dark or Asian hair here. As written in their post:
Beware that this color is not permanent but will definitely stay in light hair for a long time, brunettes for less time. The lighter your hair, the more vibrant. If you’re a brunette or redhead, you would have to have your hairstylist lighten the tips prior to dip dying your ponytail.