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L'Oréal Professionnel Logo
Since our invention of hair color more than 110 years ago, L’Oréal Professionnel has supported professional talent—from the passionate hairdresser and expert hair colourist to the modern salon team—through our obsession with innovation, tech, and safety for stylists and women. Our brand’s story is constantly fueled by in-depth and disruptive innovations, developed out of our passion for science and our technical, technological, and tech-augmented expertise. Today, we push the boundaries with patented molecules, advanced research, elevated tools, and new-to-the-world solutions at the disposal of every hair stylist.
Collections
iNOA

iNOA

No ammonia permanent hair color powered by 60% oil for optimal scalp comfort.

Majirel

Majirel

Iconic permanent hair color for ultimate color performance and coverage.

Dia light

Dia light

Acidic demi-permanent color to tone, refresh and gloss.

Dia color

Dia color

Alkaline demi-permanent color for 70% grey coverage and shine.

Blond Studio

Blond Studio

Create Blonde looks with precision and care.

Oxydants

Oxydants

Lightening range for multi-techniques with Bonder Inside and precision care.


Matrix Logo
At Matrix, we welcome all hair types and all humans. That’s why we work with our labs and network of more than 15,000 stylists around the world to develop hyper-targeted solutions for each and every hair type: every level, underlying pigment, diameter, and pattern. Always uncomplicated, but never basic, our high-performing professional products empower the hairdresser, hair stylist, and hair colourist to color, cut, and style all hair types with confidence in any salon.
Collections
SoColor

SoColor

Permanent hair color powered by pre-bonded technology that protects hair color after color.

Wonder Color

Wonder Color

Ammonia-free gentle caring color and grey coverage expert.

Developers

Developers

Creamy rich formulas offering gentle controlled lightening action.

Light Master

Light Master

Pre-mixed lightening powder with bonder inside giving as high as 8 levels of lift.

Frequently Asked Questions

Expert answers to common questions about professional hair colour.

Permanent hair color penetrates the hair shaft for long-lasting results and 100% grey coverage. Demi-permanent color is gentler, typically ammonia-free, and fades gradually, making it ideal for blending greys or adding shine.

10 Vol (3%): For deposit or 1 level of lift.
20 Vol (6%): Standard for grey coverage and 2 levels of lift.
30/40 Vol (9-12%): For 3 to 4+ levels of lift.
Note: Always use the brand-specific developer (eg: Use iNOA oil developers exclusively with iNOA color tubes).

Mixing ratios vary by product line (e.g., 1:1 for Majirel, 1:1.5 for INOA). Always refer to the technical instructions provided with each specific color line.

While ratios vary by technology, here is the technical guide for our core portfolio:

  • L'Oréal Professionnel
    • Majirel (Permanent): 1 : 1.5 (e.g., 60mll color + 90ml Oxydant).
    • INOA (Ammonia-free ODS): 1 : 1 (e.g., 60ml color + 60ml Rich Developer).
    • Dia Light (Acidic Demi): 1 : 1.5 (e.g., 60ml color + 90ml Diactivateur).
    • Dia Color (Alkaline Demi): 1 : 1.5 (e.g., 60ml color + 90ml Diactivateur).
  • Matrix
    • SoColor (Pre-bonded Permanent): 1 : 1.5 (e.g., 90ml color + 135ml Matrix Cream Developer).
    • Wonder Color (Ammonia-free Permanent): 1 : 1 (e.g., 90ml color + 90ml Matrix Cream Developer).

Classic grey coverage aims for 100% opaque masking of greys, while French Blending™ uses a "Vertical Weaving" for a seamlessly blended, natural & a low maintenance grow out.The result is a tailored multidimensional look, which does not give an opaque helmet effect and looks fashionable. For these services, you can use L'Oréal Professionnel iNOA, Dia or Matrix SoColor.

Yes, you can embrace first greys gracefully using subtle techniques like Balayage or demi-permanent glosses that require fewer root touch-ups and prevent a dull appearance. For a seamless blend, you can use L'Oréal Professionnel Dia Color.

Ammonia is used for deep pigment penetration and significant lift. For clients with sensitive scalps or those preferring an odorless experience, we offer high-performance Oil Delivery System (ODS) technology available in L'Oréal Professionnel iNOA and an oil-enriched formula in Matrix Wonder Color.