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, toning, or adding high shine.

For L'Oréal Professionnel, the standard recommendations are:
L'Oréal Professionnel Oxydant (Majirel): 12.5 (3.75%) provides minimal lift and gentle color deposit. 20 Vol (6%) for standard grey coverage and up to 2 levels of lift; 30 Vol (9%) for up to 3 levels of lift.
iNOA Rich Developer: 10 Vol (3%) for deposit, 20 Vol (6%) for grey coverage, and 30 Vol (9%) for up to 3 levels of lift.
Diactivateur (Dia Light/Color): 6 Vol (1.8%) for sensitive hair/gloss, 9 Vol (2.7%) to maintain tone, and 15 Vol (4.5%) Intense reflect / 1.5 level lift / grey blending up to 70%.

Mixing ratios vary by technology. Here is the technical guide for our core portfolio:

• Majirel (Permanent): 1 : 1.5 (e.g., 60ml color + 90ml L'Oréal Professionnel Oxydant).
• iNOA (Ammonia-free ODS): 1 : 1 (e.g., 60g color + 60g iNOA 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).

A hair gloss is a low-commitment, shine-amplifying color service that deposits tone onto existing hair without lifting. Lasting up to 6 weeks.

Espresso Brunette (Liquid Espresso) Deep, cool-toned, glass-like browns with internal dimension. Key sub-shades include Iced Espresso, Chocolate Espresso, and Hazelnut Espresso. Achieved through Color Melting and French Balayage techniques.
Espresso Brunette Hair Color GuideBronde Blends / Bronze The warm, sun-kissed intersection of brown and blonde. Multi-dimensional, warm-to-neutral tones with a "healthy glow" effect. Achieved through Face-Framing Bronzing, Babylights, and Ombre Highlights.

Full coverage aims for 100% bold masking of greys, while French Blending™ uses a "Vertical Weaving" technique for a natural, multi-dimensional, and low-maintenance result. For these services, you can use L'Oréal Professionnel iNOA or Majirel.
French Glossing gives clients a natural, lived-in result that even they can't tell is colored — it's the service for clients who want coverage without commitment.

Yes — absolutely. For clients with up to 50% grey, L'Oréal Professionnel offers two demi-permanent pathways:
Dia Color + 9 Vol Diactivateur → For 30–50% grey blending with tone deposit and a natural finish.
French Glossing Service → Step 1: Permanent on regrowth + Step 2: Dia Light gloss on lengths — creates a seamless gradient without full-head permanent commitment. This approach avoids the harsh line of demarcation, provides a translucent, natural effect, and is significantly less sensitizing than traditional permanent color.

Bronze / Bronde Blends
What it is: The warm, luminous space between brown and blonde. Officially declared a leading global trend for 2026 by L'Oréal Professionnel.
Key shades: Rose Quartz Bronze (.23), Garnet Bronze (.24), Ruby Bronze (.26).
Techniques: French Blending, Babylights, Face-Framing Bronzing
Products: Dia Light (gloss refresh), Dia Color (Titan Brown collection), Majirel (permanent bronze base)

Espresso Brunette / Liquid Espresso
What it is: Deep, cool-toned, high-gloss brunette with internal dimension — the anti-flat dark.
Sub-shades: Iced Espresso (ultra-cool/frosty), Chocolate Espresso (medium dark with highlights), Hazelnut Espresso (lighter with contrast)
Techniques: Color Melting (primary 2026 technique), French Balayage
Products: iNOA (ammonia-free base for shine), iNOA Cool Boosters (neutralize brassiness for 8 weeks), Metal Detox (pre-treatment for color purity)

For ultimate hair protection and color reliability, we recommend the L'Oréal Professionnel Metal Detox protocol on every service. It neutralizes metal particles inside the hair fiber, preventing breakage and ensuring 100% reliable color results.Metal Detox is the non-negotiable step-recommended before every color service — it prevents breakage and ensures the color your client sees in the chair is the color they go home with.

Ammonia is used in traditional formulas like Majirel for deep pigment penetration and power. For clients with sensitive scalps or those preferring an odorless experience, we offer high-performance Oil Delivery System (ODS) technology with L'Oréal Professionnel iNOA.
iNOA gives everything Majirel does — 100% grey coverage, up to 3 levels of lift — but with zero ammonia, zero odor, and a formula that actually improves the hair's condition during the service.