The darker your hair, the more sessions it will take to transform your hair into your ideal blonde color. The darker your brunette, the longer you’ll have to wait. It may take 3 sessions or more to achieve locks that are healthy, so consider if you’re in it for the long haul before making the commitment.

3. Ask about a bonder

A good colorist will mix in essential nutrients to the dye to protect and strengthen the hair. Oftentimes they will add in a protein or moisture treatment or use a hair bonder to maintain the integrity of every hair strand. Ask them what products they typically mix in and which ones you can use on yourself post-coloring.

4. Trust your stylist

Even if you’re willing to sit in the chair for 12 hours at one time to process brown hair to blonde, it’s typically not worth it. You may get the blonde that you crave that day, but it’s not worth it if hair turns out brittle and damaged.

Plus, this will make the hair color only fade faster. If your stylist recommends that you take this process gradually, it’s in your best interest to listen. 

As you can see, coloring dark brown hair to blonde is hardly a one-time thing. It will likely take 2 to 3 sessions to get your hair to the blonde that you desire without sacrificing the health of your hair.