Redken
Blonde IQ 9+ Calibrated Anti-Brass Lightener

Blonde IQ 9+ Calibrated Anti-Brass Lightener is rated 4.9 out of 5 by 235.
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Blonde IQ 9+ Calibrated Anti-Brass Lightener
Preview image 1 of 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 Only lightener I’ll use Best lightener I’ve ever used. Protects the hair and lifts so well
Date published: 2026-06-24
Rated 5 out of 5 by from Gentle, impressive lightness I loved the gentle lift this lighter provided. The hair felt silky afterwards. I used it with 10 volume and was able to get a nice sandy blonde without too much warmth. I am really excited to try this on more clients, as it seemed to be very even root to tip and even with 10v was able to lift a significant amount without being brassy.
Date published: 2026-06-19
Rated 2 out of 5 by from Slow lift Doesnt lift the hair as much as other lightners
Date published: 2026-06-19
Rated 5 out of 5 by from Blonde's can have brighter blonde! This oil based lightening product is one of rhe best I've tried. I use Redken faithfully but this one seems to be the best bleach yet. My blonde Clients have lighter and brighter. The hair is soft and no breakage. Elasticity in tact. I have bought 3 or 4 bags of this so far. I highly recommend.
Date published: 2026-06-18
Rated 5 out of 5 by from Best best I recommend Omg best lightener,I used 30 volume for very blonde hair for highlights I don’t need any toners after
Date published: 2026-06-09
Rated 5 out of 5 by from Great lightener, great results I received this product along with 10vol developer in exchange for a review. I like the consistency and the lift was even. I will be using this a lot
Date published: 2026-06-01
Rated 3 out of 5 by from works well but extremely dusty I think this lightener has amazing lift however it is extremely dusty and when exposed for 6 hours made me and clients sneeze from strong smell.
Date published: 2026-05-30
Rated 4 out of 5 by from It swelled up like crazy! I really wanted to like this lightener and truly gave it a fair shot however, I used it on a level 4 client and the swelling was insane. I had to rinse her out halfway through the service. Will not buy again! The first two applications with it went smoothly but the last one was a deal breaker.
Date published: 2026-05-29
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