Redken
Blonde IQ 9+ Calibrated Anti-Brass Lightener

Blonde IQ 9+ Calibrated Anti-Brass Lightener is rated 4.9 out of 5 by 181.

Preview image 1 of Blonde IQ 9+ Calibrated Anti-Brass Lightener

Select Size

1.1 lb

#P2907000

Redken Blonde IQ Blonding Toolkit

Description

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.

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.

How To

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 20V (6%) or 30V (9%) in a non-metallic bowl.

2. Blend until smooth creamy consistency is achieved.

Ingredients

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

Return & Refund Policy

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.

Ratings & Reviews

Rated 5 out of 5 by AzMom from Yes from me! Blonde IQ 9+ delivered consistent, true-to-level lift and performed exactly as expected when used with the appropriate developer. What I loved most was that the hair felt noticeably softer and healthier afterward compared to other lighteners I’ve used. It gave clean, even lift without leaving the hair feeling overly dry or damaged. Definitely impressed with the performance and hair integrity!

Date published: 2026-05-12

Rated 4 out of 5 by Samm from I Would buy it I was sent this product to try, I typically don’t use redken bleach products but this one right here performed really well ! I didn’t know how to feel about the oil part but surprisingly the hair felt in very good condition. I would def recommend.

Date published: 2026-05-12

Rated 5 out of 5 by Kaemarie from Great product This is a game changer with anyone who pulls very warm. The results were an extremely clean lift. I was really impressed with the lift. I will definitely be adding this to the rotation. I loved using this. Hair was left looking shiny and with a beautiful and clean lift.

Date published: 2026-05-12

Rated 5 out of 5 by Kelli from Clean Lift, Beautiful Tone, Amazing Consistenc I tried Blonde IQ+ on a range of clients and absolutely loved the results on all three! The first client was a bronde highlight, and I was so impressed with both the lift and the tone we achieved. The second was a grey blend highlight, and again, the lift was perfect. I also loved the consistency of the product — it made saturation super easy and even throughout the application. The third client wanted a bright, heavy blonde, and the final result was beautiful! The hair lifted cleanly and looked bright while still feeling healthy. Overall, I’m extremely impressed with Blonde IQ+ and will definitely continue using it on my clients going forward. 10/10!

Date published: 2026-05-12

Rated 5 out of 5 by katy from love it I love this lightener. I wasn't sure about an oil based, but I love how it doesn't swell and gives a nice clean lift.

Date published: 2026-05-12

Rated 5 out of 5 by Britt from Hands down - BEST lightener This lightener gets my clients bright and blonde with only using 20vol! Great results with no damage!

Date published: 2026-05-12

Rated 4 out of 5 by Brooke from Good stuff The Redken Blonde IQ 9+ lightener for calibrated anti-brass results with up to 9 levels of lift is a very nice lightener. Something I will be adding as a permanent product in my salon. With developers from 10 volume through 30 volume, I feel like I have true control over the amount of lift. This lightner offers great nuetrlization and has a nice creamy workable texture that doesn't swell and provides even lift.

Date published: 2026-05-11

Rated 5 out of 5 by Emyers from Love this lightener! I LOVE this lightener! I use it on my warmest pulling clients, and it lifts while leaving the brass behind. It is a wonderful product that I will be repurchasing. I received this product for no cost in return for my honest review.

Date published: 2026-05-10