DIActivateur Developer 9-Volume

DIA | 32 oz.

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Developer for DIA Light and DIA Richesse


DIActivateur Developer 9-Volume is fully stabilized and buffered to ensure consistent and uniform color results. It's creamy, rich formulas offer gentle controlled lightening  and coloring action. This developer pairs with DIA Light, DIA Richesse and DIA Richesse Hi-Visibility.

DIActivateur Developer 9-Volume is great for color treated hair and sensitized hair; for more luminous color; for corrective color/pre-coloration; for permed, smoothed, or straightened hair; and for refreshing and toning highlights.

Download the DIA Color Chart


1 : 1.5


DIActivateur Developer 9-Volume

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Ask Questions about this Product

Iv being trying to go like a dark ginger and iv being using 6,45 dia richesse on my hair with 6% but it just won’t grab to my hair at all it just washes straight out after the second shampoo and I’m measuring the colour and peroxide out correctly  

Asked by: Lydz
Hi Lydz, Please confirm if you are a licensed stylist? We suggest calling our color hotline for further assistance at 800-345-5012
Answered by: Loreal Professionnel
Date published: 2020-09-18

Can I use dia richesse with 9 vol on wet hair to do a root melt after full head highlights for a more subtle blend ? 

Asked by: Jodie123
You can use DiaRichesse with 9 Volume on damp hair for a root melt.
Answered by: Loreal Professionnel
Date published: 2020-09-15

Does dialight work with developers from other lines? I know it’s not highly advised but could it be possible?

Asked by: Mr01
We do not recommend mixing a different brand developer with L'Oreal Professionnel DiaLight. The results will be unpredictable.
Answered by: Loreal Professionnel
Date published: 2020-08-21

Hello, I coloured my hair today with DiaRichesse in 4.15 using the 6% volume activator. I love the colour and shade but I've still got a few patches on grey in some areas. If I use the 15% activator with the same shade, will my hair turn out darker?

Asked by: Tina1
DiaRichesse with 15 Volume Developer will blend up to 70% gray/white hair. We suggest you reapply to the areas where you did not get gray coverage.
Answered by: Loreal Professionnel
Date published: 2020-08-20

I really want to colour my hair darker i have baylage at the moment but i wanted to tone it down to a 7 at the ends will it darken and would volume should i use im a base 7 at the top and about a 10 on my ends

Asked by: Elliexx
I have exactly the same problem, but on the length of the hair there are some subtle stains from the bleaching and it is more of a 9 level, 10 just at the ends really. I am light 7 (the woman at the salon said 8, but my hair looks `mousy´ in the shade and shines almost red/gold in direct sunlight. I would appreciate an answer because I really prefer to tackle this myself at home, I usually have bad experiences at the salon.
Answered by: HeloisaHelena
Date published: 2020-07-26

Hi so I used the Dia Richesse before and now I have the huge bottle of Diactivateur 9 vol. Does this work as a developer for say bleach and if so which bleach should I use?

Asked by: jackie27
DIActivateur is only intended for use with DiaRichesse or Dia Light hair color.
Answered by: Loreal Professionnel
Date published: 2020-07-23
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