L’ORÉAL PROFESSIONNEL MAJIROUGE 6.66 DARK EXTRA RED BLONDE

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L’Oréal Professionnel Majirouge 6.66 Dark Extra Red Blonde is a permanent hair color specifically formulated to deliver bright, vibrant, and intense red tones that stay true and long-lasting . This professional-grade color is enriched with revolutionary Rubilane, Carmilane, and DM5 technologies, offering pure and intense reflects within selected copper and bold red shades for multidimensional, luminous results .

The formula provides up to 100% grey coverage and can lighten hair up to 3 levels, making it ideal for all-over reds and high-fashion partial techniques . Enriched with Ionène G and Incell technologies, the formula strengthens and reinforces the hair fiber, leaving hair softer, shinier, and more conditioned . The advanced caring-agent complex provides three times more care compared to previous formulations, and the odor trapping technology delivers 2x less ammonia smell for a more comfortable coloring experience .

The vegan formula features a creamy, ultra-smooth texture for easy, mistake-proof application . Mix at a 1:1.5 ratio (1 tube color to 1.5 parts developer) with 20 volume (6%) for up to 2 levels of lift or 30 volume (9%) for up to 3 levels of lift . Development time is 35 minutes at room temperature.

This product is intended for professional use only. To use, mix with recommended oxidant at 1:1.5 ratio, apply to dry, unwashed hair using sectioning techniques, process for 35 minutes, then emulsify, rinse thoroughly, and follow with a post-color shampoo. Always perform a patch test 48 hours before any coloring service.

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Categories: HAIRCARE, Professional Salon Products

Description

Table of Contents

L’ORÉAL PROFESSIONNEL MAJIROUGE 6.66 DARK EXTRA RED BLONDE

PRIMARY USES

1. Permanent Hair Color for Intense, Vibrant Red Tones

What it does: Shade 6.66 is a Dark Extra Red Blonde permanent hair color from the Majirouge range, delivering bright, vibrant, and intense red tones that stay true and long-lasting . The specialized formulation is designed for all-over reds and high-fashion partial techniques, offering pure and intense reflects within selected copper and red shades .
How it helps your hair: For the person who wants a bold, head-turning red that doesn’t fade quickly, this provides a professional formula engineered specifically for intense red results. For anyone who has struggled with reds that turn brassy or wash out too fast, this means a specialized formula designed to keep red tones vibrant and true.

2. Enriched with Revolutionary Rubilane and DM5 Technologies

What it does: The formula contains three innovative technologies: Carmilane, Rubilane, and DM5, offering pure and intense reflects within intense coppers and bold red shades . The concentrated pigment system ensures that red tones stay rich and multidimensional, with exceptional depth and shine .
How it helps your hair: For the person who wants a red that has depth and dimension rather than looking flat, this provides advanced pigment technology for multi-tonal red results. For anyone who wants their red to catch the light beautifully, this means a formula with pure, intense reflects for luminous color.

3. Provides Up to 100% Grey Coverage

What it does: This permanent hair color provides perfect coverage of grey and white hair, ensuring even, uniform results from root to tip . The formula is enriched with Ionène G and Incell technologies that strengthen and reinforce the hair fibre, leaving it softer, shinier, and more conditioned .
How it helps your hair: For the person with grey or white hair who wants vibrant, full red coverage, this provides a professional solution that covers resistant grey fibers completely while delivering intense color. For anyone who has struggled with patchy coverage or color that appears uneven, this means consistent, beautiful results.

4. Provides Up to 3 Levels of Lift

What it does: This versatile permanent color can lift hair up to 3 levels depending on the developer used . The formula lightens hair while depositing intense red pigment, making it ideal for clients who want to achieve a vibrant red from a darker starting level .
How it helps your hair: For the person wanting to achieve a bright, intense red from darker natural hair, this provides the necessary lift in a single step. For the stylist, this means the flexibility to customize the service based on the client’s starting level and desired result.

5. Features Odor Trapping Technology for Reduced Ammonia Smell

What it does: The new formula incorporates advanced anti-odor technology, providing 2x less ammonia smell for a more comfortable coloring experience . The creamy texture ensures ultra-easy, mistake-proof mixing and application .
How it helps your hair: For the person sensitive to strong chemical smells who finds traditional hair color unpleasant, this provides a more comfortable salon experience. For stylists who work with color daily, this means a more pleasant working environment without compromising on color results.

6. Vegan Formula with 3x More Care

What it does: The caring-agent complex provides three times more care compared to previous formulations, leaving hair noticeably smoother and more conditioned . The formula is also vegan, containing no animal-derived ingredients, and features a creamy texture for smooth, even application from root to tip .
How it helps your hair: For the person who colors their hair regularly and worries about damage and dryness, this provides a formula that cares for the hair while it colors. For anyone who wants their red to look vibrant and feel healthy, this means a formula that prioritizes care alongside bold color.

7. 35-Minute Development Time with 1:1.5 Mixing Ratio

What it does: The recommended development time is 35 minutes at room temperature . The color should be mixed with L’Oréal Professionnel Cream Oxydant at a 1:1.5 ratio (50-60ml color to 75-90ml developer) . Mix with 20 volume for up to 2 levels of lift, or 30 volume for up to 3 levels of lift .
How it helps your hair: For the client, this provides a predictable service time that fits into a busy schedule. For the stylist, the creamy consistency ensures even coverage and predictable results with minimal mess.

8. Available in Professional 50-60ml Size

What it does: This permanent hair color comes in a professional 50-60ml tube designed for single full-head applications . The packaging ensures product freshness and ease of dispensing in a professional salon environment.
How it helps your hair: For salons, this provides a professional-grade product in a convenient size for single applications. For the client, it means their stylist is using a fresh, professional-quality product for their service.

SECONDARY USES

1. Root Touch-Up on Red Hair: Apply only to regrowth area where natural hair needs to be recolored to match previously colored lengths, using 20 volume oxidant and processing for 35 minutes. For the person maintaining their vibrant red color between full applications, this provides a precise root touch-up solution that keeps color consistent and even.

2. Partial Coloring Techniques: Ideal for high-fashion partial techniques such as balayage, ombré, highlights, and color blocking where bright, bold red accents are desired . For the person wanting a pop of intense red in specific sections rather than all-over color, this provides the perfect solution.

3. Global Application on Virgin Hair: Apply evenly to dry, unwashed virgin hair for an all-over intense red transformation, using 20 or 30 volume oxidant depending on desired lift and starting level . For the person wanting to achieve a bold, vibrant red from natural hair, this provides the ideal single-process solution.

4. Grey Coverage Enhancement: For clients with grey hair, mixing 6.66 with Majirel golden base shades is recommended for optimal white hair coverage . For the person with grey roots who wants full coverage with vibrant red, this provides a customizable approach.

5. Color Refreshing Service: For a quick refresh of faded red color on mid-lengths and ends, apply with low-volume developer (12.5 volume) and process for 15-20 minutes. For the person whose intense red has faded but still wants to refresh between full applications, this provides a targeted refresh service.

6. Creative Color Blending: Mix with other Majirouge or Majirel shades to create custom red, copper, or burgundy formulations for personalized client results . For the stylist who wants to offer unique, custom red shades, this provides the building blocks for endless creative possibilities.

KEY PRODUCT FEATURES

1. BASIC IDENTIFICATION ATTRIBUTES

Brand: L'Oréal Professionnel Paris
Product Name: Majirouge 6.66 Dark Extra Red Blonde / Majirouge Carmilane 6.66
Shade: 6.66 Dark Extra Red Blonde / Dark Red Blonde / Dark Blonde Deep Red
Shade Level: Level 6 with double-red (6.66) reflect for intense red results
Product Type: Permanent hair color / Cream hair dye
Key Benefits: Up to 100% grey coverage, up to 3 levels lift, intense vibrant red tones, long-lasting color, hair protection and conditioning
Key Technologies: Rubilane, Carmilane, DM5, Ionène G, Incell Complex
Volume: 50ml - 60ml
Developer Ratio: 1:1.5 (50-60ml color to 75-90ml developer)
Recommended Developers: 20 Vol (6%), 30 Vol (9%), or 40 Vol (12%) Oxydant
Processing Time: 35 minutes
Grey Coverage: Up to 100%
Maximum Lift: Up to 3 levels (with 30 volume)
Formula Integrity: Vegan, Ammonia-free
Best For: Intense red tones, partial techniques, all-over reds, copper and red shades
Made in: Switzerland

2. TECHNICAL & FORMULATION PROPERTIES

Key Technology 1: Rubilane – provides pure and intense reflects within red shades
Key Technology 2: Carmilane – enhances vibrancy and longevity of red tones
Key Technology 3: DM5 – offers pure and intense reflects within selected copper and red shades
Key Technology 4: Ionène G – strengthens and reinforces hair fibre from within
Key Technology 5: Incell Complex – reduces hair porosity and increases shine
Key Technology 6: Odor Trapping Technology – provides 2x less ammonia smell
Key Active 1: 2-Methyl-5-Hydroxyethylaminophenol – oxidative dye for color development
Key Active 2: 4-Amino-2-Hydroxytoluene – oxidative dye for red tone development
Key Active 3: p-Phenylenediamine – oxidative dye for color intensity
Key Active 4: p-Aminophenol – oxidative dye for tone development
Key Active 5: 2,4-Diaminophenoxyethanol HCl – oxidative dye for tone development
Key Active 6: Resorcinol – coupling agent for color formation
Proven Results: Hair is 3x more conditioned; 2x less ammonia odor; up to 100% grey coverage
Primary Function: Provide permanent, long-lasting intense red color with up to 100% grey coverage and up to 3 levels lift
Application: Mix 1:1.5 with 20, 30, or 40 volume oxidant, apply to dry, unwashed hair using sectioning techniques, process 35 minutes, emulsify, rinse

3. PHYSICAL ATTRIBUTES

Product Form: Cream hair color
Texture: Rich, creamy, ultra-smooth, easy to mix and apply
Color: Dark Extra Red Blonde / Deep Red Blonde
Consistency: Smooth, spreadable cream
Scent: Fresh fragrance with 2x less ammonia odor
Finish: Intense red tones, high-shine, glossy, vibrant, multidimensional
Packaging: Tube (50ml-60ml)
Product Dimensions: Approx. 8 x 3 x 3 cm
Made in: Switzerland

4. HOW TO USE

For Professional Use Only:
This product must be used by a qualified hair professional. Do not use at home .

Preparation:

Wear suitable protective gloves
Use a non-metallic bowl and brush for mixing
Do not use on persons under 16 years of age
Perform a patch test 48 hours before each coloring service

Developer Selection:

Developer Volume	Lift Level	Best For
12.5 Vol (3.75%)	1-1.5 levels	Refresh previously colored lengths and ends
20 Vol (6%)	Up to 2 levels	Grey coverage, same-level coloring, darkening natural hair
30 Vol (9%)	Up to 3 levels	Lighter results, maximum lift
40 Vol (12%)	Up to 4 levels	Off-scalp maximum lift applications

Mixing:

Mix 1 tube (50-60ml) of Majirouge 6.66 Dark Extra Red Blonde with 75-90ml of L'Oréal Professionnel Cream Oxydant
Mixing ratio: 1:1.5
Mix thoroughly with a whisk or bottle until a homogeneous, creamy consistency is achieved
The oxidant/developer is not included and must be purchased separately

Grey Coverage Guidelines:

For white hair coverage, mix with Majirel golden base shades

First Application on Virgin Hair:

Apply the mixture to dry, unwashed hair
For lightening application, apply first to lengths and ends, then to roots
Ensure even saturation from roots to ends

Root Touch-Up:

Apply the mixture only to regrowth area on dry, unwashed hair
Process for 35 minutes

Development:

Processing time: 35 minutes
For more intense grey coverage or deeper red results, processing time can be extended up to 45 minutes
During development, the color of the mixture will change. This is normal and has no effect on the final color result

Rinse and Finish:

At the end of the processing time, gently emulsify by adding a small amount of lukewarm water to remove color from the scalp
Then add a few drops of warm water and continue to emulsify
Rinse thoroughly until water runs clear
Follow with a post-color shampoo (such as L'Oréal Professionnel Serie Expert Metal Detox shampoo)

Pro Tips:

For best results, use with L'Oréal Professionnel Cream Oxydant (20, 30, or 40 volume)
20 volume gives 2 levels of lift ideal for grey coverage and darkening
30 volume gives 3 levels of lift for lighter results
To maintain vibrant red color, use a color-protecting shampoo and a nourishing conditioner designed for red hair
Apply with a brush on regrowth, lengths, and ends for precise application
Always read the package insert before use

SAFETY HANDLING PRECAUTIONS

1. SAFETY PRECAUTIONS

For Professional Use Only: This product is a professional chemical color and must only be used by trained professionals
Hair dyes can cause severe allergic reactions
Patch Test: A patch test is obligatory 48 hours before each use
Protection: Wear suitable protective gloves during the entire mixing and application process
Do Not Use If: The client has a rash on the face, sensitive/irritated/damaged scalp, has ever experienced a reaction after coloring their hair, or has ever experienced a reaction to a temporary "black henna" tattoo
Not for Use on: Eyelashes, eyebrows (may cause blindness), or persons under 16 years of age
If the product comes into contact with your eyes, wash immediately and thoroughly with water
Storage: Keep out of reach of children. Store upright in a cool, dry place away from direct light and heat
Do Not Inhale or Swallow: Avoid inhalation and ingestion
Mixing: Do not use metal utensils during coloring (bowl, tweezers, combs, etc.)
Compatibility: Use exclusively with L'Oréal Professionnel oxidants
Henna Precaution: Not recommended for use on hair previously treated with henna or progressive color products

2. FIRST AID MEASURES

Eye Contact: If product enters eyes, rinse immediately with plenty of clean, lukewarm water for at least 15 minutes. Remove contact lenses if present and easy to do. If irritation persists, seek medical attention.
Skin Contact: If product contacts skin, wash off immediately with soap and water. If irritation or redness develops, seek medical advice.
Ingestion: This product is not intended for ingestion. If accidentally swallowed, rinse mouth with water and drink a glass of water. Do not induce vomiting. Seek medical attention immediately.
Inhalation: If respiratory discomfort occurs, move to fresh air. Seek medical attention if symptoms persist.
Allergic Reaction: Signs may include rash, hives, itching, swelling of the face, lips, tongue, or throat, difficulty breathing, or dizziness. If an allergic reaction is suspected, discontinue use immediately, rinse thoroughly, and seek emergency medical attention.

L’ORÉAL PROFESSIONNEL MAJIROUGE 6.66 DARK EXTRA RED BLONDE

L’ORÉAL PROFESSIONNEL MAJIROUGE 6.66 DARK EXTRA RED BLONDE

PRIMARY USES

1. Permanent Hair Color for Intense, Vibrant Red Tones

2. Enriched with Revolutionary Rubilane and DM5 Technologies

What it does: The formula contains three innovative technologies: Carmilane, Rubilane, and DM5, offering pure and intense reflects within intense coppers and bold red shades . The concentrated pigment system ensures that red tones stay rich and multidimensional, with exceptional depth and shine .

3. Provides Up to 100% Grey Coverage

What it does: This permanent hair color provides perfect coverage of grey and white hair, ensuring even, uniform results from root to tip . The formula is enriched with Ionène G and Incell technologies that strengthen and reinforce the hair fibre, leaving it softer, shinier, and more conditioned .

4. Provides Up to 3 Levels of Lift

What it does: This versatile permanent color can lift hair up to 3 levels depending on the developer used . The formula lightens hair while depositing intense red pigment, making it ideal for clients who want to achieve a vibrant red from a darker starting level .

How it helps your hair: For the person wanting to achieve a bright, intense red from darker natural hair, this provides the necessary lift in a single step. For the stylist, this means the flexibility to customize the service based on the client’s starting level and desired result.

5. Features Odor Trapping Technology for Reduced Ammonia Smell

What it does: The new formula incorporates advanced anti-odor technology, providing 2x less ammonia smell for a more comfortable coloring experience . The creamy texture ensures ultra-easy, mistake-proof mixing and application .

How it helps your hair: For the person sensitive to strong chemical smells who finds traditional hair color unpleasant, this provides a more comfortable salon experience. For stylists who work with color daily, this means a more pleasant working environment without compromising on color results.

6. Vegan Formula with 3x More Care

7. 35-Minute Development Time with 1:1.5 Mixing Ratio

What it does: The recommended development time is 35 minutes at room temperature . The color should be mixed with L’Oréal Professionnel Cream Oxydant at a 1:1.5 ratio (50-60ml color to 75-90ml developer) . Mix with 20 volume for up to 2 levels of lift, or 30 volume for up to 3 levels of lift .

How it helps your hair: For the client, this provides a predictable service time that fits into a busy schedule. For the stylist, the creamy consistency ensures even coverage and predictable results with minimal mess.

8. Available in Professional 50-60ml Size

What it does: This permanent hair color comes in a professional 50-60ml tube designed for single full-head applications . The packaging ensures product freshness and ease of dispensing in a professional salon environment.

How it helps your hair: For salons, this provides a professional-grade product in a convenient size for single applications. For the client, it means their stylist is using a fresh, professional-quality product for their service.

SECONDARY USES

4. Grey Coverage Enhancement: For clients with grey hair, mixing 6.66 with Majirel golden base shades is recommended for optimal white hair coverage . For the person with grey roots who wants full coverage with vibrant red, this provides a customizable approach.

6. Creative Color Blending: Mix with other Majirouge or Majirel shades to create custom red, copper, or burgundy formulations for personalized client results . For the stylist who wants to offer unique, custom red shades, this provides the building blocks for endless creative possibilities.

1. BASIC IDENTIFICATION ATTRIBUTES

Brand: L'Oréal Professionnel Paris

Product Name: Majirouge 6.66 Dark Extra Red Blonde / Majirouge Carmilane 6.66

Shade: 6.66 Dark Extra Red Blonde / Dark Red Blonde / Dark Blonde Deep Red

Shade Level: Level 6 with double-red (6.66) reflect for intense red results

Product Type: Permanent hair color / Cream hair dye

Key Benefits: Up to 100% grey coverage, up to 3 levels lift, intense vibrant red tones, long-lasting color, hair protection and conditioning

Key Technologies: Rubilane, Carmilane, DM5, Ionène G, Incell Complex

Volume: 50ml - 60ml

Developer Ratio: 1:1.5 (50-60ml color to 75-90ml developer)

Recommended Developers: 20 Vol (6%), 30 Vol (9%), or 40 Vol (12%) Oxydant

Processing Time: 35 minutes

Grey Coverage: Up to 100%

Maximum Lift: Up to 3 levels (with 30 volume)

Formula Integrity: Vegan, Ammonia-free

Best For: Intense red tones, partial techniques, all-over reds, copper and red shades

Made in: Switzerland

2. TECHNICAL & FORMULATION PROPERTIES

Key Technology 1: Rubilane – provides pure and intense reflects within red shades

Key Technology 2: Carmilane – enhances vibrancy and longevity of red tones

Key Technology 3: DM5 – offers pure and intense reflects within selected copper and red shades

Key Technology 4: Ionène G – strengthens and reinforces hair fibre from within

Key Technology 5: Incell Complex – reduces hair porosity and increases shine

Key Technology 6: Odor Trapping Technology – provides 2x less ammonia smell

Key Active 1: 2-Methyl-5-Hydroxyethylaminophenol – oxidative dye for color development

Key Active 2: 4-Amino-2-Hydroxytoluene – oxidative dye for red tone development

Key Active 3: p-Phenylenediamine – oxidative dye for color intensity

Key Active 4: p-Aminophenol – oxidative dye for tone development

Key Active 5: 2,4-Diaminophenoxyethanol HCl – oxidative dye for tone development

Key Active 6: Resorcinol – coupling agent for color formation

Proven Results: Hair is 3x more conditioned; 2x less ammonia odor; up to 100% grey coverage

Primary Function: Provide permanent, long-lasting intense red color with up to 100% grey coverage and up to 3 levels lift

Application: Mix 1:1.5 with 20, 30, or 40 volume oxidant, apply to dry, unwashed hair using sectioning techniques, process 35 minutes, emulsify, rinse

3. PHYSICAL ATTRIBUTES

Product Form: Cream hair color

Texture: Rich, creamy, ultra-smooth, easy to mix and apply

Color: Dark Extra Red Blonde / Deep Red Blonde

Consistency: Smooth, spreadable cream

Scent: Fresh fragrance with 2x less ammonia odor

Finish: Intense red tones, high-shine, glossy, vibrant, multidimensional

Packaging: Tube (50ml-60ml)

Product Dimensions: Approx. 8 x 3 x 3 cm

Made in: Switzerland

4. HOW TO USE

For Professional Use Only: This product must be used by a qualified hair professional. Do not use at home .

Preparation:

Wear suitable protective gloves

Use a non-metallic bowl and brush for mixing

Do not use on persons under 16 years of age

Perform a patch test 48 hours before each coloring service

Developer Selection:

Developer Volume

Lift Level

Best For

12.5 Vol (3.75%)

1-1.5 levels

For Professional Use Only:
This product must be used by a qualified hair professional. Do not use at home .