Redken
Blonde IQ 9+ Calibrated Anti-Brass Lightener

Blonde IQ 9+ Calibrated Anti-Brass Lightener is rated 4.9 out of 5 by 260.
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Blonde IQ 9+ Calibrated Anti-Brass Lightener
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1.1 lb
#P2907000
Redken Blonde IQ Blonding Toolkit
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What It Is

Redken Blonde IQ 9+ lightener for calibrated anti-brass results with up to 9 levels of lift.

What It Does

Redken’s Blonde IQ 9+ Calibrated Anti-Brass Lightener is a dual-action oil-powered system designed for advanced neutralization and up to 9 levels of powerful clean lift. The proprietary technology efficiently drives neutralization power to the hair’s core; breaking down eumelanin and pheomelanin for your most neutralized blonde.

Perfect for balayage, foiling and all over blonding, Redken Blonde IQ 9+ is to only be used with Redken Pro Oxide Oil Developers 10 – 30 Volume to guarantee precise results you expect.

What Else You Need to Know

Redken Blonde IQ 9+ provides no swelling, better saturation, even lift, and precise application, delivering a powerful clean lift for all hair types and textures. Its versatile formulation is ideal for a wide range of services, including balayage, foiling, and all over blonding.

Wear suitable disposable gloves. Mix product in a well-ventilated area. Follow mixture ratios carefully, or damage to hair or scalp including irritation, hair loss or chemical burns could occur.

1. Put the recommended amount of Blonde IQ™ 9+ Lightener and Pro-Oxide Oil Developer 10V (3%), 20V (6%) or 30V (9%) in a non-metallic bowl.

2. Blend until smooth creamy consistency is achieved.

POTASSIUM PERSULFATE - SODIUM SILICATE - AMMONIUM PERSULFATE - MAGNESIUM CARBONATE HYDROXIDE - SODIUM STEARATE - MINERAL OIL - SODIUM LAURYL SULFATE - DISODIUM EDTA - HYDROXYETHYLCELLULOSE - ACRYLATES/C10-30 ALKYL ACRYLATE CROSSPOLYMER - CI 77007 / ULTRAMARINES - SODIUM CITRATE

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 5 out of 5 by from Beautiful blondes I absolutely love this lightener. It’s easy to mix and apply but the best part is how it helps to fight off brassy tones and lifts nicely with less damage than traditional lighteners.
Date published: 2026-04-17
Rated 4 out of 5 by from super consistent Absolutely love this lightner! Even using 20vol it’s pretty gentle. I always get super consistent lift even on really dark canvases. Only docking 1 star because I do wish they would come out with a 10vol developer to pair.
Date published: 2026-04-17
Rated 5 out of 5 by from One of my new staples I like how versatile this product is so I can use it for all application types. Definitely helps reduce some of the brass and I very successfully lifted it out green direct dye with it in one shot. I’m impressed.
Date published: 2026-04-16
Rated 5 out of 5 by from the best! The best lightener I have used! Gentle on hair but gives great lift!
Date published: 2026-04-12
Rated 5 out of 5 by from IQ results Best lightener on the market to this day! Not damaging and leaves the brightest results for those ultimate blonds!!
Date published: 2026-04-11
Rated 5 out of 5 by from Perfect Love this product, stays most with so swelling, color comes up beautifully
Date published: 2026-04-10
Rated 5 out of 5 by from amazing!!! Haven’t used redken in a few years as I was scarred by flashlift and heard amazing things so I gave it a try. I love it! It has not ones swelled or done me dirty at all!
Date published: 2026-04-02
Rated 5 out of 5 by from LOVE!! It has been a long time since a lightener has “wowed” me and this has definitely exceeded my expectations. Zero swelling, amazing lift, and love the consistency. 10/10!
Date published: 2026-03-31
Rated 5 out of 5 by from Amazing lightner! I’m not one that likes change. However, I used this one time. I will say I never second guessed my decision to switch to this! Same processing time with extra lift.
Date published: 2026-03-31
Rated 5 out of 5 by from Great product This Lightner has quickly become one of my favorite at the salon. I reached for it more than other brands I have purchased, and it gives me an even lift.
Date published: 2026-03-30
Rated 5 out of 5 by from Lightener My absolute favorite lightener!
Date published: 2026-03-30
Rated 5 out of 5 by from Cailey Have used light master for 3 years but will be getting this from now on. I love it!
Date published: 2026-03-29
Rated 5 out of 5 by from Best lightener I love this lightener so much. The lift is amazing and I love that it’s oil based to help protect the integrity of the hair! 10/10
Date published: 2026-03-25
Rated 5 out of 5 by from I love the application of this! Smooth and easy to use. I love how even this lifts the hair without damage
Date published: 2026-03-24
Rated 5 out of 5 by from Redken Lifts so nice. Anti brass definitely makes a difference
Date published: 2026-03-24
Rated 5 out of 5 by from Favorite lightener Minimal to no swelling on foils, lifted a level 2 to an 8 with low brassiness and a clean health lift. Will be purchasing again. Thicker consistency but not slippery at all.
Date published: 2026-03-16
Rated 5 out of 5 by from obsessed switched from a wella Blondor girlie to IQ and literally OBSESSED!!
Date published: 2026-03-14
Rated 5 out of 5 by from Happy Stylist! This has to be the best lightener I have used this far!
Date published: 2026-03-13
Rated 5 out of 5 by from Blonde IQ LOVE. LOVE. LOVE. my new favorite! perfect consistency, not crubley, and pulls perfect every time. 10/10 recommend!
Date published: 2026-03-05
Rated 5 out of 5 by from perfect lightener new favorite lightener. the consistency is perfect, does not swell, and produces incredible results. the lift is gorgeous
Date published: 2026-02-27
Rated 5 out of 5 by from 5-5 stars.!!! 5-5 stars this is a game changer.! (Yes photo not in salon did mine at home) Iv been licensed for 14 years now. Let me tell you this product is a game changer. I’ve tried everything from Sally’s & I tried, professional flash lift, joico, wella, this stuff is amazing does not swell, no itching no burning sensation. 50 minutes. 1-2 ratio 20 vol took me from level 5 to a level 10. I toned with redken shades eq. I’m thrilled with my experience from this product & redken please do not discontinue this product!.
Date published: 2026-02-26
Rated 4 out of 5 by from love it so far really like this product! only issue is its so messy to mix together the powder is so fine and the developer is so thick it plops into the powder creating a dusty mess. buuuutttt I love how the product performs
Date published: 2026-02-17
Rated 5 out of 5 by from Obsessed I absolutely love this new lightener ! The lift is perfect and the integrity of the hair is stronger .
Date published: 2026-02-17
Rated 5 out of 5 by from Creamy consistency + no swelling! This lightener has such an amazing consistency and has not swelled. The color is perfect every time and can't say enough how excited I am about this product. I was looking for a new lightener and this one has my hearttt
Date published: 2026-02-11
Rated 5 out of 5 by from Love it 🫶🏼 The only lightener I’ve been grabbing for for months now 10/10
Date published: 2026-02-09
Rated 5 out of 5 by from I would definitely recommend Love this . It doesn’t swell and it lives very well and keeps the integrity of the hair
Date published: 2026-02-09
Rated 5 out of 5 by from awesome great lightener, will switch from wella blonder. love the consistency and lift.
Date published: 2026-02-09
Rated 5 out of 5 by from No more brass [Employee of saloncentric] I am loving this new way to lighten all my beautiful blonde clients with this and having the least amount of brass! It is my new go to
Date published: 2026-02-08
Rated 5 out of 5 by from the best I love it so good and gentle with the hair lift really good makes difference
Date published: 2026-01-27
Rated 5 out of 5 by from Above average Great product leaving the hair in spectacular condition.
Date published: 2026-01-17
  • y_2026, m_8, d_14, h_4
  • bvseo_bulk, prod_bvrr, vn_bulk_3.0.48
  • cp_6, bvpage2n
  • co_hasreviews, tv_79, tr_181
  • loc_en_US, sid_redken-blonde-iq-9-lightener, prod, sort_[SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
  • clientName_saloncentric
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