Dia color: Alkaline Demi-Permanent Haircolor

Dia color: Alkaline Demi-Permanent Haircolor is rated 4.6 out of 5 by 349.
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  • Dia color: Alkaline Demi-Permanent Haircolor
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  • Dia color: Alkaline Demi-Permanent Haircolor
    #P2779200
  • Dia color: Alkaline Demi-Permanent Haircolor
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  • Dia color: Alkaline Demi-Permanent Haircolor
    #P2613500
  • Dia color: Alkaline Demi-Permanent Haircolor
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What It Is

Dia color is an ammonia-free alkaline demi-permanent haircolor designed to refresh, cover grey (up to 70%), and add shine.  

What It Does

• Up to 70% grey coverage with Melanin Gap Filler Technology. 

• Lifts up to 1.5 levels. 

• Provides up to 6 weeks of glossy color and 2x shine*. 

• Conditions hair with Shea butter, glycerin, and hyaluronic acid. 

• Offers 40 intermixable shades across ten tonal families. 

 

* vs. unwashed hair.

What Else You Need to Know

● 1:1.5 mixing ratio. 

● 20-minute processing time. 

● 60ml tube size  

● 92% naturally derived formula**. 

● Fully intermixable with Dia Richesse. 

 

** We consider an ingredient to be naturally derived if it is unchanged from its natural state or has undergone processing yet still retains greater than 50% of its molecular structure from its original natural state. 

Preparation
•    1 to 1.5 mixing ratio. 
•    1 tube (2 oz.) to 3 oz. DIActivateur Developer.
•    Mix Dia color with DIActivateur Developer 6, 9, or 15-volume depending on the desired intensity of the result.

 

Application
•    20 min development time starts at end of application.

 

Rinsing
•    When development time is complete, thoroughly rinse from the hair and shampoo with Metal Detox and pro guarantee your color result. Follow with Metal Detox mask.
 

AQUA / WATER / EAU • CETEAR L ALDOHOL • ETHANOLAMINE • GLYCERIN • PROPANEDIOL • BUT ROSPERMUM PARKI BUTER / SHEA BUTTER • OLEIC ADD • CLENL ALDOHOL • 0000-GLUCOSIDE • SODIUM METABISULFTE • PAYRUM FRICRANCE • TOLUENE-25-DJAMINE •AMINOPHEVOL • ASPOREIC ACID • TETRASODIUM GLUTAMATE DIAC-ETATE • HYDROXYBENZOMORPHOLINE • XANTHAN GUM •HYDROXYETH 3,4-METH LE EDIOXVANLINE HOL • NLN-BIS(2-HYDRONIETHILH, PHENYLEMEDIAMINE SULFATE •SODUM HALLAONATE » THOGLYCERN • CITRIC)

Individual shades vary, please see package for details.
 

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 4 out of 5 by from Overall good color line I received 6GRV and 6N as a promo to review and I have to say I am not a fan of the color of 6GRV but the overall color line is fantastic for blending grey! The application process is easy with a mixing ratio of 1:1 1/2. Smells good and leaves the hair soft and shiny for quite a long time.
Date published: 2025-05-18
Rated 5 out of 5 by from Nice coverage, cream demi I received 6 and 6.35 to use and review. I had never used the loreal demi and was impressed. You mix 1:1.5 ration with the diactivator. 20min processing. Had great coverage. Nice and creamy consistency and the hair was shiny. I would definitely recommend and will use in place of another popular brands cream demi.
Date published: 2025-05-16
Rated 5 out of 5 by from High quality Demi Received a sample 6N. Nice smell, smooth consistency, not too dark. Blended grey nicely.
Date published: 2025-05-16
Rated 5 out of 5 by from Love the consistency I received L'Oréal Professionnel Dia Demi- Permanent Color in 6 & 6.35 for free in exchange for my professional and honest opinion. This is my first time trying this product. First off love the consistency. Silky smooth application and nice gray blending. I normally use shaves EQ, but doesn’t have enough of the gray blending.I would definitely recommend and purchase.
Date published: 2025-05-16
Rated 5 out of 5 by from Works well [Employee of saloncentric] I received this product as a free sample. I like the consistency. It blends grey well and leaves the hair shiny. I typically use redken shades EQ but this product has better coverage and lasts longer.
Date published: 2025-05-15
Rated 4 out of 5 by from Shiny and clean! Silky smooth application and nice density of mixed formula. My client is about 50% gray and dia offered excellent coverage and great shine! Blending coverage was very nice there is no line or additional darkness where old color over lapped.
Date published: 2025-05-15
Rated 5 out of 5 by from Love ❤️ I liked this Demi permanent color . I glides smoothly on the hair . Has great grey coverage and it stayed vibrant and shiny for a long time.
Date published: 2025-05-14
Rated 5 out of 5 by from Great Demi I was given L’Oréal Professionnel Dia Demi- Permanent Color in 6 & 6.35 in exchange for my professional and honest opinion. This is my first time trying this color line and am extremely pleased with the results. Would purchase again in the future.
Date published: 2025-05-14
Rated 5 out of 5 by from The best I use level 6 and 6.35 to too darken up a blonde! It left a beautiful caramel color without depositing too much color . The consistency of the product itself is creamy. Easy to apply and True to Tone ! This have become my go to glosses/toner.
Date published: 2025-05-13
Rated 5 out of 5 by from Good product Nice color, consistency is easy to apply, went a little lighter than I had hoped but I would buy again.
Date published: 2025-05-13
Rated 5 out of 5 by from Really Great Product I received this product as part of a test program. I was very impressed with the coverage of this product is fully blended my grays and it has also lasted fairly long even with washing every day
Date published: 2025-05-13
Rated 5 out of 5 by from Really good color I received this product free in exchange for an honest review. I used 6n and 6.35 to tone a client and I am so impressed with this color line. Fast color grab and the consistency/ fragrance is a plus. Will definitely be using this line again.
Date published: 2025-05-13
Rated 5 out of 5 by from Would recommend Colors are stunning. The perfect level 6. I love that it doesn’t harm the hair and the smell isn’t overpowering. Such a gorgeous color line. Got them sent to try. Thank you! Would buy.
Date published: 2025-05-12
Rated 3 out of 5 by from Dis This line has a nice consistency which makes application easy. It has little to no odor, if anything a slight floral scent. It seemed to pull a little green and processed a little darker which was a little frustrating. I would just formulate differently. The color itself leaves hair feeling healthy and shiny.
Date published: 2025-05-12
Rated 3 out of 5 by from Too translucent This product has a lovely creamy consistency but it’s too translucent. There was no difference made in the hair afterward. My client and I were disappointed
Date published: 2025-05-12
Rated 5 out of 5 by from Great color This color was used for doing some lowlight in a very highlighted head of hair. It has great shine and very good consistency to work with.
Date published: 2025-05-12
Rated 5 out of 5 by from Gorgeous! Beautiful results! Blends color really well. Left hair looking soft and feeling healthy.
Date published: 2025-05-11
Rated 4 out of 5 by from I’ve never used L’Oréal before, and I’m absolutely I’ve never used L’Oréal before, and I’m absolutely blown away. The consistency and scent alone are a huge selling point. While I would’ve loved a touch more richness in tone and depth, I still really love how it turned out. I’ll definitely be purchasing a few more shades to explore it further!
Date published: 2025-05-11
Rated 5 out of 5 by from Never lets me down L’Oréal Dia Professional Color is a salon staple for a reason—it delivers beautiful, conditioned hair with radiant, natural-looking tones. It’s perfect for refreshing color, toning highlights, or achieving a soft transformation without long-term commitment. While it may not replace permanent color for full grey coverage, it excels in enhancing shine and tonal balance, especially when customized by a skilled colorist.
Date published: 2025-05-11
Rated 5 out of 5 by from Rich and shiny I used 6N with some 6.35 on my client to cover her 25% gray hair and match her natural color. It was rich in tone and covered the grays. My client commented on how shiny her hair looked after her service too.
Date published: 2025-05-11
Rated 5 out of 5 by from Nice Color! I really liked this as a root smudge. However, be aware I feel like it's much darker than a level 6 color.
Date published: 2025-05-11
Rated 5 out of 5 by from Love it! This product is great! Especially for those clients with allergies to Ammon in hair color.
Date published: 2025-05-10
Rated 5 out of 5 by from Great toner Used 6N and it was perfect for adding low lights and shadow root
Date published: 2025-05-10
Rated 4 out of 5 by from I like it but.. I received color 6 and color 6.35 from bzzagent, I’ve used dia color prior to getting this sample and really enjoyed using it. It’s very easy to learn and navigate, definitely like their reds and using their reds with 13vol. Both of these colors were also super nice and easy to use. I like them but don’t know if I would make a switch from the current brand I’m using. But I would definitely use it in a pinch.
Date published: 2025-05-10
Rated 5 out of 5 by from Beautiful Color I highly recommend trying Día Color if you haven’t already. The shades are beautiful and true to swatch/tone which makes formulation straight forward. The application is easy and clean, it has almost a gel like texture which is easy to apply. The finish on the hair is a pretty glossy sheen with a nice amount of coverage, love it for guests who have sparse gray and just want a natural/shiny finish.
Date published: 2025-05-10
Rated 5 out of 5 by from good coverage and application this product is easy to use and easy to mix. it applies smoothly it mixes smoothly and it has great coverage. it's a tad warm for my preference but it's is a great product to work with. I did receive this product free in trade for reviewing it.
Date published: 2025-05-10
Rated 3 out of 5 by from Not my favorite I get lackluster results every time I try dia color. It lets very warm and doesn’t give 100% great coverage. Less expensive color brands offer better coverage in my experience.
Date published: 2025-05-10
Rated 4 out of 5 by from Easy application! Nice viscosity but I felt it was darker than expected
Date published: 2025-05-10
Rated 5 out of 5 by from Love it Love this product! I leaves the hair feeling so smooth and so healthy!!! It works instantly and my clients felt a different right away! The color was perfect!
Date published: 2025-05-10
Rated 4 out of 5 by from creamy it mixed well nice and creamy consistency. processed evenly & had a Plesant scent
Date published: 2025-05-10
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