L'Oréal Professionnel iNOA Ammonia Free Permanent Hair Color

iNOA Ammonia Free Permanent Hair Color

iNOA Ammonia Free Permanent Hair Color is rated 4.5 out of 5 by 649.

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.

How To

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.

Ingredients

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.

Return & Refund Policy

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.

Ratings & Reviews

Rated 5 out of 5 by Milarsen from Great product The #1 non ammonia coverage is great and the shine lasts i

Date published: 2026-09-25

Rated 5 out of 5 by Bcam from One of my favorites true to color looks wonderful if wanting a cool tone

Date published: 2026-09-22

Rated 5 out of 5 by Kandi from top notch color line I’ve been using Inoa for the past 15 years now. I switched from another color line after attending several educational technique classes where this line was introduced to me. The coverage is incredible. It does not pull warm or leave a translucency when covering gray. It’s true to the level and is consistent every time! I’ve been blown away by it and all my clients love it. It also fades beautifully not brassy!

Date published: 2026-08-30

Rated 5 out of 5 by Marcials Blends from INOA knowas gray coverage I love the other professional gray coverage dyes. The best one i have ever used is INOA. The coverage is the most natural I have seen. Even or especially when shown at the light of the natural sun, gray does not reflect or or receive light differently. Doing root touch ups, the color melts into the hair leaving no demarcation lines. YES, follow the instructions. No moisture on hair during application. YES, it costs a few dollars more per tube: charge accordingly.

Date published: 2026-08-28

Rated 5 out of 5 by Hair of Confidence from rich rich rich! The gray coverage is phenomenal, there is ZERO scent which I really appreciate, and every color is so rich & pigmented

Date published: 2026-08-22

Rated 5 out of 5 by Yani from Excellent 100% coverage, very creamy, beautiful results. I love the fact that using the Ns, I don’t need to add a lot ash, cause Ns cancels warm itself. Excellent product.

Date published: 2026-08-14

Rated 5 out of 5 by Brooke from Amazing project I’m obsessed with this color!! It’s an oil based, which is better for the hair, but also doesn’t stain the skin. I recommend this product! 10/10

Date published: 2026-08-09

Rated 5 out of 5 by Alejandra from Had to come back Amazing product! I was trying other brand for a while but I had to come back to Inoa. It does what I want and what I expect even though it’s ammonia free, which my clients love. Perfect for my sensitive clients too! I will not be using any other brands!

Date published: 2026-08-07

iNOA Ammonia Free Permanent Hair Color Reviews - page 2

Resources

French Blending Tech Guide

Learn more about French Blending and level up your grey coverage with iNOA.

French Blending Lookbook

Discover endless shade combinations and signature formulas through our French Blending Lookbook.

iNOA Education Classes

iNOA Color Chart

Click here to unlock all 94 iNOA shades.

iNOA Full FAQ Guide

Have a question about iNOA? Click here to get your answers.

What is French Blending?

Click to find out how this New Pro Technique is changing the game!

How To:

Retouch Blending

Click to learn how to blend greys with a seamless, low-maintenance touch up.

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.

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.