iNOA Ammonia Free Permanent Hair Color

iNOA Ammonia Free Permanent Hair Color is rated 4.5 out of 5 by 622.
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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.

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Rated 5 out of 5 by from Great for sensitive scalps Great color for those with a sensitive scalp. The no ammonia reduces the smell and the scalp itching that some experience.
Date published: 2026-04-24
Rated 4 out of 5 by from Works good L'Oréal sent me this free sample through the BzzAgent sampling program. I used the shade 6N on my mom who has a fair amount of gray hair. The color looked good on her and just the right tone for her complexion. Not too dark but it did cover her gray hair nicely. The formula mixed was easy to come together and applied effortlessly. The processing time was also pretty accurate. I left on for a little extra just to ensure the gray coverage. Usually my mom's scalp will start to itch close to the end of her processing when we dye her roots, but with this product she wasn't sensitive to it at all. Maybe due to it being oil based. So I think this dye could be great for clients with sensitive scalps, even if they don't have gray hair. The hair felt really smooth after washing and styling. I personally would not use this on all of my clients, but I'd recommend if you have clients with sensitivity to smells or scalp irritation.
Date published: 2026-04-24
Rated 5 out of 5 by from Inoa I’ve been using I know for many many years. I love the fact that it has no ammonia and it has perfect coverage. It doesn’t disappoint.
Date published: 2026-04-24
Rated 5 out of 5 by from New favorite color line This is so gentle on the hair with good color deposit. Excellent grey coverage with less irritation than the Redken color. Makes the hair look shiny too. New favorite color line
Date published: 2026-04-23
Rated 5 out of 5 by from Easy on the scalp and hair This is a great product for sensitive heads that tend to typically have any kind of allergic reaction to regular hair color.
Date published: 2026-04-23
Rated 5 out of 5 by from Love it Ammonia free. Gentle on the hair as it is on the scalp. I love it!
Date published: 2026-04-23
Rated 4 out of 5 by from Great for sensitive scalps/skin I am so happy that I got to try out this color! The low ammonia was noticeable for my client who has a sensitive scalp/skin. I loved the color and the shine! I'll definitely be using this product more
Date published: 2026-04-22
Rated 5 out of 5 by from Easy application Great product! Easy to apply, gives consistent color, and leaves a beautiful shine.
Date published: 2026-04-22
Rated 5 out of 5 by from Love Super high shine and the color always comes out perfect
Date published: 2026-04-22
Rated 5 out of 5 by from Oil Powerhouse! Favorite oil based permanent color line! I’ve used Inoa my entire career & have never been disappointed. The shine is unmatched & I love how I can do major color changes easier when using Inoa
Date published: 2026-04-22
Rated 4 out of 5 by from Nice color product This product is nice, I don’t love the look of the packaging, but it’s a nice color product.
Date published: 2026-04-22
Rated 4 out of 5 by from Good overall product I've always had Good results with this color line. Applies well, covers nicely and leaves hair shiny. Id recommend without a doubt
Date published: 2026-04-22
Rated 3 out of 5 by from comparable to redken first time trying. product left my clients hair shiny and covered gray completely!!
Date published: 2026-04-22
Rated 5 out of 5 by from Wonderful! Such a great color line! The results are always so consistent and the colors come out shiny and dimensional! I have been using this line for almost a decade and I will be using it for many years to come.
Date published: 2026-04-22
Rated 5 out of 5 by from I loved using iNoa, I was looking for something comparable to Redken Chromatics and it seems like its pretty close and I love the shine and hydration it gave the hair
Date published: 2026-04-21
Rated 5 out of 5 by from Great for covering greys Obsessed with this color line! So much pigment and grey coverage!
Date published: 2026-04-20
Rated 5 out of 5 by from Gentle to hair! I love this color line. No damage or over processing the hair because it’s oil based. Very greasy if you don’t shampoo it well enough though.
Date published: 2026-04-18
Rated 5 out of 5 by from the best hair color I have been using L’Oreal inoa for years and it is easily one of my favorite hair colors for doing root applications and mid to end color. Very good for an all over color or even a toner ! I always reach back for this one and recommend it for my clients.
Date published: 2026-04-18
Rated 5 out of 5 by from BEST color line I had to switch over when Redken got rid of Chromatics. I love it even more, amazing grey coverage and beautiful tones. I stick with reds & violets for myself and this provides vibrant beautiful color that lasts for a long time, without browning out.
Date published: 2026-04-17
Rated 5 out of 5 by from INOA color review INOA is the best Ammonia free 100% white coverage permanent hair color around! There is no smell and it leaves the hair with so much shine! Highly recommend!
Date published: 2026-04-17
Rated 5 out of 5 by from Makes my hair shiny and healthy! I have been using the 10.1 with 30 volume developer on my level 6/7 hair that’s 25% grey. The color comes out as a beautiful, buttery blonde. It’s also very shiny and dimensional; so it doesn’t look flat. The integrity of my hair is so healthy as well.
Date published: 2026-04-16
Rated 4 out of 5 by from Good I love that it’s ammonia-free. The coverage isn’t 100% though. If your clients has 50% or less I would definitely use it. But with clients who have 75% or more, it blends the gray, but it doesn’t completely cover it. If you’re looking for more of a blend it’s great. But if you need full gray coverage I would use something else.
Date published: 2026-04-14
Rated 1 out of 5 by from Wrong product pulled The product is fine, but it wasn’t what I ordered. I ordered Majirel in the same color.
Date published: 2026-01-22
Rated 5 out of 5 by from love that it doesn't have some of the harsher chem love that it doesn't have some of the harsher chemicals. Does not cause the reaction that other dyes do.
Date published: 2025-12-25
Rated 5 out of 5 by from Gray Coverage That Delivers Here’s a clean, professional SalonCentric Review Crew style write-up you can copy/paste: ⸻ I recently used L’Oréal INOA permanent color in levels 7 Natural and 6 Natural on two clients with 100% gray coverage, and I’m really happy with the results. I waited to review until I could test it on full gray clients because gray coverage is where it truly counts. While the formula does appear deeper and richer during processing, once rinsed and dried it settles beautifully into the true level and blends evenly with the natural hair. The coverage was full, soft, and natural looking with no hollow or translucent areas. Overall, a reliable choice for stylists who want ammonia-free color with consistent gray coverage and a smooth finish.
Date published: 2025-11-05
Rated 5 out of 5 by from Absolutely love this color line! The coverage is super opaque without feeling harsh at all, and the finish is beautiful—so glossy and healthy-looking. I love that it’s ammonia-free, so there’s no strong smell and it’s way gentler on the hair and scalp. The results are rich, vibrant, and long-lasting. Definitely one of my new go-to color lines!
Date published: 2025-11-05
Rated 4 out of 5 by from shiny and great coverage pleasant fragrance and great coverage. leaves hair shiny and soft
Date published: 2025-11-04
Rated 4 out of 5 by from Good product Color is creamy & saturated the hair well. Color was pretty
Date published: 2025-10-31
Rated 5 out of 5 by from Surprising product!! I received this to review from BzzAgent..since it is a gentler formula, it works well on sensitive scalps. It gave a nice shine to the hair and a nice smell..pretty good coverage for low/no ammonia. Definitely recommend!!
Date published: 2025-10-27
Rated 4 out of 5 by from This was good This was really easy to use, the smell wasn’t bad, it does cover gray and my client enjoyed it
Date published: 2025-10-27
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  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.46
  • cp_3, bvpage2n
  • co_hasreviews, tv_150, tr_472
  • loc_en_US, sid_loreal-professionnel-inoa-permanent-haircolor, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
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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.