Permanent hair colour penetrates the hair shaft for long-lasting results and 100% grey coverage.
Demi-permanent colour 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):
12.5vol (%): For up to 1 level of lift and colour deposit on previously coloured hair.
20 Vol (6%): For standard grey coverage and up to 2 levels of lift and colouring on the same level.
30 Vol (9%): For up to 3 levels of lift.
iNOA Oil Developer:
10 Vol (3%): For colour deposit on previously coloured hair.
20 Vol (6%): For standard grey coverage, up to 2 levels of lift and Colouring on the same level.
30 Vol (9%): For up to 3 levels of lift.
Diactivateur (Dia Light/Dia color):
6 Vol (1.8%): For soft colour deposit or sensitised hair.
9 Vol (2.7%): For standard colour deposit.
15 Vol (4.5%): Exclusively used with Dia color for up to 1 level of lift or reinforced grey blending.

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

• Majirel (Permanent): 1 : 1.5 (e.g., 60ml colour + 90ml L'Oréal Professionnel OTT Cream Oxydant)
• iNOA (Ammonia-free ODS): 1 : 1 (e.g., 60g colour + 60g iNOA Oil Developer)
• Dia Light (Acidic Demi): 1 : 1.5 (e.g., 60ml colour + 90ml Diactivateur)
• Dia Richesse (Alkaline Demi): 1 : 1.5 (e.g., 60ml colour + 90ml Diactivateur)

A hair gloss is a professional treatment designed to smooth the hair fibre, add intense shine, and condition for up to six weeks. To achieve this, you can use L'Oréal Professionnel Dia Light, which features an acidic technology that is ultra-gentle on the hair fibre.

Full Coverage: Aims for 100% bold, complete coverage of grey hairs.
French Blending™: Uses a professional products for a natural, multi-dimensional, and low-maintenance result.
Recommended products for both services: L'Oréal Professionnel iNOA or Majirel or Dia Color.

Yes! You can embrace your first grey hairs gracefully using subtle techniques like Balayage or demi-permanent glosses that require fewer root touch-ups. For a seamless, soft blend, we recommend using L'Oréal Professionnel Dia color or Dia light.

The "Pro Hyaluronic Gloss" Trend: With Hyaluronic Acid now in your gloss, instantly fight dryness and breakage, perfect for after any pre lightening services.
The “French Blending" Trend: Discover the new pro way to cover greys, by blending them. To unlock multidimensional colour and have a graceful grow-out.
The “No Bleach Highlights" Trend: Free to highlight, free from bleach, and obtain subtle dimension even on dark bases.
Recommended products to achieve these shades: L'Oréal Professionnel iNOA, Majirel, Dia light and Dia color.

For ultimate hair protection and colour reliability, we recommend the professional L'Oréal Professionnel Metal Detox protocol with every service. This treatment neutralises metal particles inside the hair fibre, preventing breakage and ensuring 100% reliable, true to tone colour results.

Ammonia Ranges (e.g., Majirel): Used in traditional formulas for deep, powerful pigment penetration and high performance. There are also technologies such as the Odour Trapping Technology (OTT) that do help reduce the smell to provide a more enjoyable experience.
Ammonia-Free Ranges (e.g., iNOA): Ideal for clients with sensitive scalps or those who prefer a completely odourless experience. This range utilizes high-performance Oil Delivery System (ODS) technology to deliver rich colour.