Prenditi cura dei capelli colorati con il siero per capelli.

Hair color can be so much fun to play with, though we all know it requires a little extra TLC when it comes to maintaining vibrancy and health. That’s where using a hair serum, especially the very best hair serum for color treated hair, can help. Learn more about what hair serum is, why it’s beneficial, and how to use hair serum for the ultimate glass shine.

article-duration
5 min read
L'Oréal Professionnel Team
05/02/2026

What is hair serum?

Formulated with concentrated actives, hair serums are liquid cosmetic products designed to address specific hair care concerns. Their texture allows them to coat the hair, covering the hair shaft in order to address things like frizz, shine, protection and overall hair health. Hair serums can be particularly beneficial for color treated hair and we will get into that below.

Why use a hair serum for color treated hair?

Now that we’ve answered the “what is hair serum” question, we can dive into the why. Why use a hair serum for color treated hair? In short, coloring your hair not only alters its color, but the structure of the hair itself. The process of coloring one’s hair can leave it more porous and therefore more vulnerable to damage. Hair serums, especially those formulated specifically for colored hair, can make a big difference. As the serum coats each hair shaft, it can help restore moisture and shine so that your new color can really pop. Depending on the actives and technology in the formula, using a hair serum can have a range of benefits for your color treated hair.

How to use hair serum

First thing’s first, before using and applying hair serum, you need to find the best shine serum for color treated hair. The L’Oreal Professionnel Vitamino Color Spectrum Glass Shine Serum is suitable for all colored hair, delivering instant glass shine and lasting results for up to 10 washes. It’s a patented leave-in serum powered by an innovative polymer that coats and resurfaces the hair, bringing care, smoothness and discipline even after 10 washes. It’s an anti-frizz, anti-humidity and anti-fading serum in one. We’ll give you the step-by-step guide on how to use hair serum for the ultimate shine but you’ll also want to take a look at the full Vitamino Color Spectrum range for colored hair, and always, always, always, get started with hair serum application with clean, damp hair.

Shake the hair serum

Shake the hair serum before use. The serum has a liquid texture, so don’t apply more than one pump at a time and section the hair beforehand if necessary.

Distribute evenly

After the full Vitamino Color Spectrum protocol, apply on clean, towel-dried hair. 1-2 pumps for thin to medium hair, 3-4 pumps for thicker hair. Distribute evenly over the lengths and ends. Do not rinse.

Dry hair completely

Dry hair completely with your favorite drying techniques. Once hair is dried, straighten hair with a straightening iron. The serum is heat activated and it must be used with a blow dryer or straightening iron. For optimal results, use with heating plates working at 180°C minimum.

Shiny results

1. Shine

The serum yields ultra-high glass shine.

2. Saturation

It supports rich vibrant color.

3. Contrast

The serum brings out optimal depth between multiple shades.

4. Tone

It neutralizes unwanted reflects for the tone you want.

5. Brightness

The serum preserves the level of lightness or darkness in your hair color.

The best serum for color treated hair recap

If we had to sum it up, the most important reason to use hair serum on color treated hair is to restore much needed (and deserved) shine to your locks. Hair coloring can be harsh on the hair itself, making it more porous and vulnerable to damage, losing its shine along the way.

Want to bring back frizz-free smoothness, softness and shine? Trying a serum for all colored hair can bring glass shine to your hair, with overall results that are anti-fading, anti-frizz, anti-humidity, and that last for up to 10 washes. That’s a whole lot of shine in just one product.

Hair serum for color treated hair FAQ

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