Color Correction: Everything You Need to Know

Hair color not turning out the way you expected? Whether it’s uneven tones, blotchy color, brassiness or a box dye gone wrong — color correction is your solution. At BRUSH Amsterdam, we specialize in rescuing hair color with strategic, personalized correction plans that restore harmony, shine, and confidence.

What is color correction?

Color correction is a tailored hair coloring service that fixes undesirable results. This could mean neutralizing orange tones, removing splotchy patches, darkening overly light areas or rebuilding dimension. It’s not a one-size-fits-all process — it’s a customized journey toward your hair’s best version.

When do you need a color correction?

• You tried a DIY dye that turned out too dark, red, or patchy.
• Your blonde has gone brassy or yellow after sun or hard water exposure.
• Old highlights or balayage have faded unevenly over time.
• You want to transition from dark to light (or vice versa) safely.
• Your hair is overprocessed 
• Your hair looks blueish or greenish grey blonde

In all of these cases, our BRUSH colorists assess your starting point and create a plan with what is needed from permanent color, toners, lightening, lowlights or gentle pigment removal techniques.

How long does color correction take?

Depending on the complexity, it can take anywhere from 2 to 6 hours and sometimes requiring multiple sessions. We always aim for the healthiest approach, even if that means breaking it into phases.

Is color correction damaging?

Minimal when it’s done with care. At BRUSH, we prioritize hair integrity by using the best bond-building products, nourishing formulas and strand-by-strand strategies. We may recommend pre-treatment or aftercare like glossing to support hair health.

Color correction and dimension

Often, we use dimensional coloring techniques — such as adding highlights, lowlights or soft balayage — to rebuild depth and light reflection in the hair. This helps your corrected color look more natural and age beautifully between appointments.

Combining color correction with a fresh look

Color correction doesn’t just fix — it can enhance. We often take this moment to subtly redesign your color placement or introduce face-framing to bring light and softness around the face.

How much does color correction cost?

Because each case is unique, we price color corrections based on time and complexity. You’ll receive a personalized quote during your consultation. Because it's a long and delicate process that requires a lot of expertise and skill a full correction at BRUSH starts at €495. We always offer honest guidance and a step-by-step approach if needed.

Can color correction fix grey hair mistakes?

Absolutely. If your attempt to blend or cover grey has gone too warm or flat, we can rebalance it with semi-permanent or permanent color, and even introduce highlights or foilyage for dimension and softness.

What else you should know about color correction

After how long can I color my hair again?
It depends on your hair’s condition and the type of coloring done. If your hair is still healthy, we may plan a follow-up color session after 4 to 6 weeks. However, if there’s significant dryness or breakage, we’ll recommend a break and nourishing care first. At BRUSH, we always prioritize the integrity of your hair — not just the color result.

Can hairdressers just remove hair dye from my hair?
Yes, but it's not as simple as "erasing" pigment. Professional color removal requires specific products that gently lift artificial dyes from the hair, followed by toning or recoloring. It’s a controlled, expert process and essential to let a pro do it, especially if your current tone is uneven or stubborn. And very important to remember: removing the hair dye doesn't mean the result can become as light as you desire. It might require multiple sessions to reach the desired outcome.

Can a color correction take out black box dye?
Yes, but not in one step. Black box dye is one of the most complex corrections because of the high pigment load and unpredictable undertones. We often need multiple lightening and toning sessions, spaced out over time. Our team will give you a realistic path toward your goal while keeping your hair healthy and shiny along the way.

FAQs about color correction

How do I know if I need a color correction?

If your current color has uneven tones, looks unnatural, or you’re unhappy with the result — a correction is likely needed.

Can color correction fix orange or red tones?

Yes. We use color theory to neutralize warm tones with cool-based toners or apply a full recolor depending on the level of saturation.

Is it safe to color correct bleached hair?

Yes, but the approach depends case by case and it must be done with care. Bleached hair is fragile, so we adjust our methods to avoid overprocessing and prioritize bond repair.

Can I go from dark to light in one session?

Sometimes, but not always. It depends on your hair's history and strength. We’ll guide you on what’s realistic without compromising hair health.

Do I need a consultation first?

Yes. For all color corrections, we require an in-person consultation to evaluate your hair and create a custom plan. You can book your consultation here.

Why BRUSH is the expert in color correction

We approach every correction with expertise, honesty and artistry. Our BRUSH colorists are trained in advanced correction techniques, color chemistry and the latest lightening innovations — so we not only fix the issue but upgrade your look in the process.

Want to fix your color — and feel like yourself again? Book your consultation today and let’s bring your hair back to life.