INOA Hair Color Ingredients

Please Refer to the following UPDATED article:


Many people have called and asked us about INOA, L’Oreal’s ammonia-free hair color, and it’s ingredients. As stated in our posts, we are disappointed that L’Oreal would chose to market an ammonia-free hair color line which does in fact contain plenty of ammonia.

Aside from being alerted to this fact by our clients and consultants, we were intrigued by the increasingly heightened level of interest regarding INOA’s surrounding the ingredients of this product. We decided to inquire about the ingredients of the product and we were somewhat surprised at what we found and now understand better what the curiosity is all about. Here is what we found:




Skin Deep Rating

Aqua Water A safe primary ingredient. Low Hazard 0
Ethanolamine Used as a pH Adjusters, generally considered to be safe in cosmetics at low concentrations. Ingredients are required by law to be listed in descending order of concentration. The fact that Ethanolamine is listed as the second highest concentrated ingredient in INOA may be a bit of a concern. Moderate Hazard 4-6
Alcohol Denatured Ethanol that has additives to make it more poisonous or unpalatable. Used as a viscosity controller. Generally a safe ingredient. low Hazard – 2
Propylene Glycol Viscosity controlling agent also used for skin or scalp conditioning. Generally considered to be a safe ingredient. However, there remains some controversy regarding this ingredient seemingly because it is also used in anti-freeze products (as is water). Moderate Hazard – 3
Dipropylene Glycol Viscosity controlling agent. Generally considered to be a safe ingredient.

Low Hazard 1
Hexylene Glycol Used as a solvent, surfactant, or emulsifying agent. Generally considered safe but represents a strong skin irritant. Moderate Risk 4
Hydroxyethylcellulose Emulsion Stabalizer Generally considered to be safe. Low Hazard 0
Resorcinol Synthetic dye used as hair colorant This is a very dangerous ingredient and there are much safer alternatives like 4-Chlororesorcino. It seems odd that a company would choose to use resorcinol when a much safer, and arguably more effective, alternative exists. The only conclusion might be to save costs. High Hazard 9
p-Aminophenol Hair colorant agent derived from coal tar. Generally considered to be safe provided use and concentration restrictions. High Hazard 8
Toluene 2,5 Diamine Aromatic amine This is a dangerous ingredient that has been restricted for use in cosmetics in the Cosmetic Ingredient Review Assessments and has been linked to certain kinds of cancers and reproductive disorders. High Hazard 7
2 Methylresorcinol Hair colorent and aromatic anime. A low toxicity ingredient that has demonstrated some links to temporary skin irritation in certain concentration levels. Generally considered safe. Low Hazard 2
Sodium Metabisulfate Preservative A moderately dangerous preservative that is a known human immune system toxicant. Moderate Hazard 5

INOA Hair Color Ingredients Conclusion

Most (almost 60%) of the ingredients of INOA’s base which we evaluated had a skin deep rating of “moderate” or “high”. This is compared to about 20% of Organic Color Systems. Further, although we applaud L’Oreal’s efforts in removing ammonia from their hair color, we do not understand why they would use resorcinol and such a severe concentration of ethanolamine in their hair color and keep ammonia (ammonia hydroxide) in their non-ammonia line.

  • mary

    I am a little up set my hair dresser loves this this product an states she uses it . what is the best safes none ammonia product, I could use

    • Organic Salon Systems

      We’d be happy to find you an organic salon in your area, Mary. Our color is 100% ammonia free and uses the most natural ingredients whenever possible.

      All we need is your zip code. :)

  • ShouldntBother

    Well, shoot. I’m always very careful to check ingredients. That’s very worrisome. Really disappointed.

  • Elizabeth

    I recently learned that not only do I have a high level of toxicity, but I have a genetic issue that inhibits my body’s natural detoxification process. I was told by my doctor that I need to either stop dying my hair or I have to find a natural alternative. My hair professional told me that she uses Inoa and that it has natural ingredients. Clearly, this isn’t accurate. Can you please suggest an organic salon in the Las Vegas area for me?

  • Anindya Naila Sabahat

    Hi, I’m just wondering, on the full ingredients, is there PPD in INOA? Because I’m pretty sure that I’m highly allergic to PPD, but my hairdresser has told me that INOA is hypoallergenic. Thanks very much

    • Lucia

      Mineral Oil, Water, Glycerin, C20-22 Alcohols, Ethanolamine, Oleth-20,
      Cetyl Palmitate, Deceth 5, Oleth 10, Rescorcinol, Toluene-2,5-Diamine,
      Sodium Metabisulfate, EDTA, Ascorbic Acid, Carbomer, p-Aminophenol,
      m-Aminophenol, Ceteareth 60 Myristyl Glycol, Hydroxybenzomorpholine,
      Thioglycerin, FIL D49680/2 Pat./Brevet
      Inoa 9/9N. I am also ++allergic to PPD. Try Wella Professional koleston Perfect Innosense. It should be without PPD and PTD.

  • Sai Samarth R Phaye


    I applied this hair color a month back, and I am experiencing heavy hairfall :(

    Please help me out. Is it because of the L’Oreal Paris Professional INOA color? it was my first time and I seriously dont know what to do now. Every time I take a bath, the moment i water my hair, i see around 20-30 hair strands; every time I touch my hair normally, 1-2 hair strands gets on my hand. Is this normal? I never experienced this kind of hairfall, this amount of hairfall. Please give me a suitable cure of it.


    Thanks a lot.

  • Jennifer heffernan

    I have been using Logona hair colour for nearly 10 years now since suffering an extreme contact dermatitis reaction to the hair colour my salon had been using. I have never had a bad reaction to Logona but I am not totally satisfied with coverage/ colour. Are you able to advise other brands which I could try for better coverage of grey and less red ?

  • Sharon manby