iNOA Ammonia Free Permanent Hair Color

iNOA Ammonia Free Permanent Hair Color is rated 4.5 out of 5 by 628.
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What It Is

iNOA is a certified vegan, ammonia-free permanent hair color with patented Oil Delivery System technology and an oil-based formula, offering 3 boosters and 91 intermixable shades*, up to three levels of lift, gentle 100% grey coverage and all-over color application, suitable for double-process services. 

*Excludes iNOA Intense Reds (Carmilane™, Rubilane™, and DM5 special technologies), which should not be intermixed with any shades aside from iNOA Clear.

What It Does

• Provides 100% multidimensional grey coverage with long-lasting results.

• Leaves hair visibly healthier and 48% shinier**.

• Offers an odorless, no-drip formula for comfortable and easy application.

• Maintains hair pattern and helps improve porosity.

**vs. unwashed, uncolored hair

What Else You Need to Know

• 1:1 mixing ratio with iNOA Oil Developer (10, 20, or 30 volume). Do not use with other developers.

• 35-minute processing time.

• Easy mixing, application, and rinsing.

• Fragrance free.

• For all hair formations.

Preparation:

• Measure 2.1 oz./60 g. of iNOA Oil Developer (10-, 20-, or 30-volume) into an iNOA measuring cup or iNOA doser for accuracy.

• Add 1 tube (2.1 oz./60 g) of iNOA hair color.

• Mix together until a smooth, creamy texture is obtained. Application On dry hair, mist Metal Detox Pre-Treatment Spray on each hair section and apply iNOA formula with a brush. Development time: 35 minutes

Technical Rules for Coverage:

• Up to 70% white hair: Mix chosen target shade with iNOA Oil Developer 10-/20-/30-vol. Apply and process 35 min.

• Between 70% and 100% white hair: If the chosen target shade is warm, mix ½ tube of the chosen target shade + ½ tube of the Gold Natural shade at the same level. If the chosen target shade is cool, mix ½ tube of the chosen target shade + ½ tube of the Natural shade at the same level. If looking for deeper or more opaque coverage, mix ½ tube of the chosen target shade + ½ tube of the Extra Coverage Natural shade at the same level. For midlengths and ends, use target shade only. Development time: 35 min.

Rinsing:

• When development time is complete, thoroughly rinse color from the hair and shampoo once with iNOA Post-Color Shampoo and once with Metal Detox Shampoo to pro guarantee your color result. Follow with Metal Detox Mask.

Take through with Dia Light:

• To best preserve the integrity of the hair, benefiting from Dia Light’s unique acidic pH technology. The take-through time will depend on the desired end result.

• Slight or moderate color change: take through for the final 10 minutes of iNOA development, using 9-volume Diactivateur.

• Dramatic color change: take through for the final 20 minutes of iNOA development, using 9-volume Diactivateur.

Take through with iNOA:

• On virgin hair only. The take-through time will depend on the desired end result.

• Slight color change: take through for the final 5 minutes of development time.

• Moderate color change: take through for the final 20 minutes of development time.

• Dramatic color change: take through immediately.

PARAFFINUM LIQUIDUM/MINERAL OIL/ HUILE MINERALE • AQUA/WATER/EAU • ETHANOL- AMINE • COCO-GLUCOSIDE • SODIUM LAURYL SULFATE • PEG-40 HYDROGENATED CASTOR OIL • HYDROXYPROPYL GUAR • TOLUENE- 25-DI- AMINE • HYDROXYBENZOMORPHOLINE • SODI- UM METABISULFITE • EDTA • HYDROXYETH- YL-34-METHYLENEDIOXYANILINE HCL • NN-BIS(2-HYDROXYETHYL)-p-PHENYLENEDI- AMINE SULFATE • ASCORBIC ACID • m-AMINO- PHENOL • 2-AMINO-3-HYDROXYPYRI- DINE • THIOGLYCERIN. FIL. T292643/1.

Purchases made in SalonCentric stores may be returned to any SalonCentric store. Purchases made through SalonCentric Customer Service, SalonCentric Business Partners, and SalonCentric.com orders Sold and Shipped by SalonCentric may be returned to a SalonCentric store; however, the return must not exceed $450 and must include the original receipt, packing slip, or invoice. For returns in-store of online orders, the refund will be credited back to the original payment method once the return has been processed. For SalonCentric.com Online Exclusive orders sold and shipped by third-party sellers, please see more details linked below for return steps.

The SalonCentric return policy does not currently apply to Kérastase & Shu Uemura purchases. Kérastase & Shu Uemura do not accept returns.

Click to see more details.

Rated 5 out of 5 by from Perfection I strayed away for a bit to try a different line. Hands down INOA is the best color I’ve ever used in my 35 year career. The texture, no fragrance, coverage…perfection
Date published: 2026-06-23
Rated 4 out of 5 by from Fades Great color but fades more than some other color brands
Date published: 2026-06-15
Rated 5 out of 5 by from Full grey coverage Color 6NN-been using this color on a client with sensitive scalp and she has not experienced sensitivity with this color line. I’m able to charge a premium for this hair color since it is on a higher end price wise. Hair color is thicker and creamy and delivers full gray coverage. I would say because of that it may appear a bit darker by 1/2 a shade.
Date published: 2026-06-15
Rated 4 out of 5 by from Good ammonia free hair color I received these products for free in exchange for an honest review. Used the 6N and 7.1 recently. Color came out even and true to the shade — 6N did leave a little too much redness in my opinion but I typically add ash mixed in. I'd like to note there was no grey hair to cover so I can't say how grey coverage is. The shine was actually really nice, better than I expected from an ammonia-free. No ammonia smell is a genuine plus. I'd definitely try it again.
Date published: 2026-05-26
Rated 5 out of 5 by from Love this permanent color line Love this oil color line! It works perfect for stubborn grey coverage. They also have a brilliant color line when it comes to reds and coppers!
Date published: 2026-05-21
Rated 5 out of 5 by from Natural coverage! I’ve really enjoyed working with this line for natural-looking coverage and beautiful shine. Given the nature of the ammonia free formula I’ve noticed it being much more comfortable for sensitive clients and leaves the hair feeling softer and healthier compared to many traditional permanent colors. The tones process evenly, provides decent gray coverage, and gives dimensional finish that looks natural.
Date published: 2026-05-14
Rated 3 out of 5 by from I did not like this product. I received the 6n and 7n with the 20 v developer to review. I used the 6 n on natural level 6 to blend gray however the shade came out to be a level 9 brassy reddish blonde was very disappointing.
Date published: 2026-05-13
Rated 5 out of 5 by from Nice formula Covers grey. I received this product free to review.
Date published: 2026-05-13
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Resources

See What's New

French Blending gray coverage vs. Classic gray coverage before and after photos
Retouch blending, dimensional grey blending salon service before and after photo

FAQs

A: It’s a trademarked L’Oreal Professionel service that pairs innovative, unique color recipes with technique to follow the grey pattern, instead of covering them.

A: French Blending is a highly personalized strategy pairing unique color recipes with innovative application techniques for more natural, multidimensional grey coverage.

A: For anyone seeking a natural, modern, low-maintenance approach to greys. For clients who prefer enhancing their natural tones rather than masking them.

A:


1. Retouch Blending: Loyal clients who do touchups at home. 

  • Blend greys with a seamless low-maintenance touch-up. 


2. Total Blending: Retain loyalty clients & wants less maintenance. 

  • Embrace greys with a blended, tailor-made look. 


3. First Blending: Recruit 1st grey color service in-salon. 

  • Blend the first signs of greys, with a natural, lived-in result. 

A: The service relies on iNOA, Dia Color, Blond Studio, and Dia light, allowing colorists to combine tone, depth, lightener with precision for a fully customized result.

A: iNOA is an ammonia-free permanent hair color powered by Oil Delivery System (ODS) technology. Its 60% oil-based formula uses the hydrophobic nature of oil and water to deliver colorant deep into the hair's cortex, with a low dose of monoethanolamine (MEA) gently opening the cuticle in place of ammonia. The result is a completely odorless application that disturbs the hair cuticle less than traditional permanent color, delivering added shine and a visibly healthy finish on all hair formations. iNOA color and developer are also certified 100% vegan.

A: iNOA follows a 1:1 mixing ratio — combine 2.1 oz. of iNOA color with 2.1 oz. of iNOA Oil Developer (available in 10, 20, or 30-vol.). Process for 35 minutes for up to 100% grey coverage. For detailed instructions on applying color through the lengths and ends, refer to the iNOA Technical Guide.