An expert guide to caring for your color-treated hair.

Exploring a new shade for your locks? Or just back from a new color treatment at the salon? Whatever color treatment you use, there’s a way to make it last longer. Without proper maintenance, colored hair can fade. Learn how to take care of dyed hair and make your color last. Keep reading for expert colored hair tips that support hair health and keep hair color vibrant.

article-duration
6 min
L'Oréal Professionnel Team
22-05-2026

Over the rainbow: what is color-treated hair?

Before getting into how to take care of dyed hair, let’s start with some basics. Distinct from virgin, or untreated, hair, color-treated hair has undergone permanent color treatment. This can include hair color or dye, highlights, lowlights, or balayage. Color-treated hair is chemically altered: the hair cuticle has been opened up to allow dye to penetrate the hair and deposit permanent color. Compared to virgin hair, color-treated hair behaves differently and requires some special treatment. Because of the chemical process of dyeing and the changes to the hair structure, colored hair can feel dry or brittle.

How does color treatment work?

In a hair color treatment, the coloring agent penetrates the hair fiber, depositing color molecules. These molecules replace the natural color of the melanin pigment, resulting in your final color. We’re sharing our top colored hair tips so you can get the best out of your color treatment.

Why does hair color fade?

Over the course of hair washes, the color molecules deposited by the dye are washed out by the water. In turn, the fiber contains fewer colorants, and so your hair loses its color and vibrancy. For tips for how you make hair color last longer, keep reading.

Colored hair tips

The real question is: how do you make hair color last longer? Well, whether you’re working with a professional colorist or taking matters into your own hands, there are steps you can take both pre- and post-coloring to help keep your hair vibrant and healthy. We’re talking about adjusting your haircare routine and choosing the best products for your color-treated hair. These are vetted tips for coloring hair at home or at the salon.

1. Prep your hair

Our first hair color tip? The work begins even before any dye is applied to your hair. You want to prepare and protect your hair before coloring, ideally starting a couple of months in advance. Incorporate the Metal Detox shampoo into your routine to gently cleanse the hair fiber and remove metal buildup, which helps prevent breakage and ensures optimal, reliable color results. Additionally, use nourishing oils and hair masks to hydrate, get regular trims to remove dry or split ends, and avoid excessive heat styling.

2. Pick your dye wisely

When coloring your hair, another hair color tip is be sure to use a high-quality dye without harsh chemicals. You want to look out for ammonia in particular to avoid damage. For the best results and to protect your hair’s integrity, ask your colorist for L’Oréal Professionnel color products and services. If going the bleach route, your colorist can help select the right developer to avoid drying out your hair. And when it comes to how long to keep hair dye in, be sure to follow directions carefully.

3. Adjust your hair washing routine

Among our top colored hair tips? Less is more when it comes to washing colored hair. First, you’ll want to wait a few days after coloring and before the first wash. You’ll also want to wash less frequently to avoid washing out color. Space out your washes to about twice a week or so. This will help your color last longer and preserve the natural oils in your hair and scalp, which keep your hair healthy. You’ll also want to select a color-safe shampoo, but we’ll get into more detail below.

4. Adjust your styling routine

Be gentle when it comes to heat styling your colored hair. If you tend to use heat styling on a regular basis, always apply a heat protectant before applying heat. You should also consider lowering the temperature settings. Keep the hair dryer moving so you don’t scorch any individual section of hair.

5. Select the right products

Among our top colored hair tips: A proper hair routine for dyed hair. Vitamino Color Spectrum range by L’Oréal Professionnel uses Ferulic Acid + 2.5% Citric Acid to penetrate the hair fibers and preserve intense color for up to 100 days1. With the right products, you can really nourish your colored hair, at every step of the way.

The ultimate color-treated hair routine

How do you make hair color last longer? From cleansing to styling, there’s an optimal way to care for your color-treated hair. Here’s a sample routine based on the Vitamino Color Spectrum range, designed by professionals to harness patented technology for color-treated hair.

How to take care of dyed hair: Cleanse

Use a color-safe, sulfate-free shampoo to wash your colored hair. Choose a cleanser or shampoo that hydrates and repairs, bringing serious care to color-treated hair. Remember to space out washes to prevent fading and dullness.

How to take care of dyed hair: Nourish

Use an intense nourishing mask or deep conditioner to support hair hydration and vibrancy. A rich mask or conditioner can really hydrate and soften color-treated hair, helping to preserve color and prevent fading.

How to take care of dyed hair: Protect

Use a concentrated serum for increased shine and protection from external stressors, like sun, heat and humidity. This is a key step if heat styling is part of your routine.

Keep your hair salon-perfect at home with our Vitamino Color Spectrum pro routines.

Step 1: Cleanse

Shampoo.

Cleanses fiber gently & thoroughly for all colored hair.
Step 2: Care

Deep conditioner.

Strengthens hair from within for stronger, smoother and more disciplined hair.
Step 3: Illuminate

Glass shine serum.

Delivers instant glass shine & lasting results up to 10 washes for all colored hair.

Fine to medium hair.

Your questions & our answers about color-treated hair.

  • What is color-treated hair?

    Color-treated hair has undergone permanent color treatment and is chemically altered. The hair cuticle has been opened up to allow dye to penetrate the hair and deposit permanent color.

  • How does color treatment work?

    In a color treatment, the coloring agent penetrates the hair fiber, depositing color molecules, and replacing the natural color of the melanin pigment, resulting in your final color.

  • Why does hair color fade?

    Hair color fades from washing. The color molecules get washed away over time, resulting in faded, less vibrant color

  • What are some hair color tips?

    Some of the top hair color tips: Prepare your hair in advance to keep it nourished and hydrated. Choose dyes that are free of harsh chemicals like ammonia. Wash your hair less frequently and with color-safe shampoos. Try to avoid excessive heat styling. Use color-safe products that both avoid damaging your color and help nourish your hair.

  • How to take care of dyed hair?

    Try adjusting your hair washing routine: Wash less frequently and only with color-safe shampoos. If you use heat styling, use a heat protectant and use a lower temperature setting. Nourish your hair with color-safe products that boost your hair color.

  • What kind of shampoo should I use for dyed hair?

    Always use a color-safe, sulfate-free shampoo for dyed hair.