Maintenance is where many people feel surprised. Even when the highlight color looks stunning on day one, it can dull due to washing habits, water quality, sun exposure, and gradual fading of toner.
With black and brown highlighted hair, the good news is that the contrast usually stays flattering longer than very bright, pastel, or platinum styles. Darker browns can blend as they fade, meaning the grow-out can look intentional rather than messy.
Still, toner matters. Brown highlights often start cooler or warmer, and fading can shift them. Your goal is to keep the undertone aligned with your base, so the color reads cohesive from root to ends.
Practical care steps that actually help
- Use a color-safe shampoo and avoid frequent clarifying washes.
- Wash with cooler water to slow fading.
- Condition every wash—especially if your highlights were processed more than once.
- Protect from sun with hats or hair products that include UV filters.
- Consider a toner-supporting treatment if your highlights shift warmer or cooler over time.
How often you refresh depends on how quickly your hair grows and how your highlights were placed. Many people revisit their color every few months—often with a gloss or partial re-tone rather than a full highlight redo.