Redken
Blonde IQ 9+ Calibrated Anti-Brass Lightener

Blonde IQ 9+ Calibrated Anti-Brass Lightener is rated 4.9 out of 5 by 331.
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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 2 out of 5 by from What’s changed?! I’m not sure what’s changed, but I have used this for years this and not sure it says 9+ but definitely not getting the same results or lightness that I’ve had with the other Redken 9. I thought it was just my imagination, but something’s definitely changed and not for the better.
Date published: 2026-11-09
Rated 4 out of 5 by from Love Love Blonde me! I really love the old one and do t know why they changed it
Date published: 2026-10-29
Rated 5 out of 5 by from Best bleach I used to use joico 9+ I loved the bleach it was just very very strong smell, once redken dropped this bleach I tried it out and immediately switched the lift, the consistency, no smell, and fast lift. It’s exactly what I needed and is an everyday go to for me.
Date published: 2026-10-23
Rated 5 out of 5 by from awesome Lightner I love this Lightner and love how its paired with an oil base developer. I switched to this a couple months ago and won't be looking back!
Date published: 2026-10-21
Rated 5 out of 5 by from too good!! My girls use this like it’s water! It works insanely well. Recommend starting with 10 volume developer.
Date published: 2026-10-21
Rated 5 out of 5 by from Like butter This is one of my favorite lighters right now. Doesn’t bleed, and pair with the oil based developer it just goes on like butter.
Date published: 2026-10-07
Rated 5 out of 5 by from definitely my go to This lightener has been the best. No dryer use which I love and the perfect lift every time
Date published: 2026-10-05
Rated 5 out of 5 by from Love this consistent lift and keeps the hair from being brassy while lifting.
Date published: 2026-10-02
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