Q1: Will blue peekaboo turn green as it washes out?
A1: Blue dye turns green during fading if the underlying lightened hair retained yellow or orange warmth before the dye was deposited. If lifted to a clean Level 9 or properly pre-toned with violet to cancel gold tones, the blue fades into a soft slate-grey or pastel periwinkle rather than murky green.
Q2: How often do I need to bleach my roots to keep the peekaboo looking fresh?
A2: Because peekaboo highlights live beneath a top layer of natural brown hair, there is no harsh line of demarcation at the crown. Most clients refresh their root lightening only every 12 to 16 weeks, simply applying a color-depositing gloss at home every few weeks to keep the mid-lengths vibrant.
Q3: Can I pull off a navy blue peekaboo without bleaching my dark brown hair?
A3: Semi-permanent blue dye cannot lighten hair. Depositing navy dye directly over unbleached dark brown hair creates an extremely faint tint visible only under harsh, direct sunlight. To see noticeable blue contrast, the target sections must be lightened at least to a Level 7.
Q4: How do I wash my hair without the blue bleeding into the brown base?
A4: Dark brown hair will not absorb blue run-off because it is already saturated with natural pigment. However, if you have light brunette strands or existing blonde balayage, wash your peekaboo section separately with cold water, or coat the lighter brown strands with standard conditioner before rinsing the blue to create a protective barrier.