How long your blonde lasts will depend on the technique used to color your hair, how fast your hair grows, and how well you take care of your hair post-appointment. If you’re not a natural bright blonde, you’ll most likely need regular touch-ups to keep your hair looking fresh. Every four to eight weeks is a reasonable estimate.
If you naturally have dark brunette hair, you’ll most definitely need regular touch-ups to avoid your darker roots from peaking out too much.