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DIActivateur Developer 9-Volume

DIActivateur Developer 9-Volume is rated 4.8 out of 5 by 115.
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DIActivateur Developer 9-Volume
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What It Is

DIActivateur 9-vol. (2.7%) Developer is formulated to be used with:

• DIA Light Demi-Permanent Haircolor on color-treated or sensitized hair.

• DIA Richesse Demi-Permanent Haircolor on natural or color treated hair.

What It Does

9-vol. DIActivateur Developer pairs with DIA Light and DIA Richesse to create beautiful results for unlimited services.

What Else You Need to Know

DIA Light & DIA Richesse mix in a 1:1.5 ratio with 9-vol. (2.7%) DIActivateur Developer. DIActivateur Developer is formulated to be paired with DIA for best results.

 

DIA Light

• Use 6-vol. or 9-vol. (use 9-vol. when going darker)

 

DIA Richesse

• Use 9-vol. or 15-vol. (includes DIA Richesse Hi-Visibility)

• Mix ratio 1:1.5 (1 tube : 2.6 oz. developer)

• Apply with a bowl and brush or plastic bottle

• Development time from 2-20 minutes

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.

Rated 5 out of 5 by from Great product Smooth, creamy consistency that makes application easy. Great scent, even results, and leaves the hair soft, shiny, and beautifully smooth.
Date published: 2026-06-07
Rated 5 out of 5 by from Nice Great developer to go with this color line, mixes to perfect consistency, not too bad smell, very shiny results
Date published: 2026-05-20
Rated 5 out of 5 by from Very nice developer Great consistency and smell. Leaves the color very smooth and leaves the hair soft and shiny.
Date published: 2026-05-12
Rated 5 out of 5 by from Pleasant smell. Great consistency and texture. Mixes well with the Demi permanent colors. Love that you can mix 1/1.5. Low smell.
Date published: 2026-05-10
Rated 5 out of 5 by from Nice Makes texture of the color so smooth and easy to apply too!
Date published: 2026-05-08
Rated 5 out of 5 by from Great developer It’s the perfect developer for applying the Demi’s to my clients!
Date published: 2026-05-07
Rated 5 out of 5 by from Perfect Developer for Glossy, Healthy-Looking Colo Really liked this developer with Dia Light! It mixed smoothly, didn’t irritate my scalp, and left my hair feeling soft and shiny instead of dry. The color came out even, glossy, and very salon-quality.
Date published: 2026-05-07
Rated 4 out of 5 by from Great consistency The creamy consistency of this developer is great. It mixed very well and didn't thin out while I mixed it in the bowl. It then stayed put exactly where I wanted it on the hair.
Date published: 2026-05-07
  • y_2026, m_7, d_8, h_11
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.47
  • cp_1, bvpage1
  • co_hasreviews, tv_49, tr_66
  • loc_en_US, sid_loreal-professionnel-dia-developer-9-volume, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_saloncentric
  • bvseo_sdk, dw_cartridge, 17.1.0, p_sdk_3.2.0
  • CLOUD, getReviews, 6ms
  • reviews, product