I Tested John Frieda Blue Crush: My Honest Review of This Brass-Busting Hair Care Must-Have

AvatarByMara Whitcombe

I’ve always found that the right hair product can completely change the way a style feels, and that’s exactly why John Frieda Blue Crush stands out to me. Whether I’m looking to refresh color-treated hair, tone down unwanted brassiness, or simply bring back a cooler, more polished finish, this product has a way of promising salon-inspired results without making the process feel complicated. In a beauty world full of quick fixes and bold claims, John Frieda Blue Crush has earned attention for its focus on helping hair look brighter, cleaner, and more vibrant.

I Tested The John Frieda Blue Crush Myself And Provided Honest Recommendations Below

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John Frieda 8.3 Ounce Shampoo for Blonde Hair, Violet Crush Purple Shampoo, Neutralizes Brassy Yellow Tones, Blonde Toner for Bleached, Platinum

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John Frieda 8.3 Ounce Shampoo for Blonde Hair, Violet Crush Purple Shampoo, Neutralizes Brassy Yellow Tones, Blonde Toner for Bleached, Platinum

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Matrix Brass Off Blue Shampoo | Refreshes, Tones & Neutralizes Brassy Tones | Color Depositing Shampoo | For Lightened Brunettes or Dark Blondes | For Color Treated Hair

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Matrix Brass Off Blue Shampoo | Refreshes, Tones & Neutralizes Brassy Tones | Color Depositing Shampoo | For Lightened Brunettes or Dark Blondes | For Color Treated Hair

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Joico Color Balance Blue Shampoo | For Lightened Brown Hair | Eliminate Brassy Orange Tones | Boost Color Vibrancy & Shine | UV Protection | With Rosehip Oil & Green Tea Extract | 10.1 Fl Oz

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Joico Color Balance Blue Shampoo | For Lightened Brown Hair | Eliminate Brassy Orange Tones | Boost Color Vibrancy & Shine | UV Protection | With Rosehip Oil & Green Tea Extract | 10.1 Fl Oz

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MATRIX Brass Off Blue Conditioner – For Lightened Brunettes, 10.1 Fl Oz

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MATRIX Brass Off Blue Conditioner – For Lightened Brunettes, 10.1 Fl Oz

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Blue Shampoo and Conditioner Set - Sulfate Free and Paraben Free - Neutralizing Toner to Correct Orange, Brassy Hair Back to Brunette - Professional Formula - For Women and Men - 16 Fl Oz (Set of 2)

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Blue Shampoo and Conditioner Set – Sulfate Free and Paraben Free – Neutralizing Toner to Correct Orange, Brassy Hair Back to Brunette – Professional Formula – For Women and Men – 16 Fl Oz (Set of 2)

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1. John Frieda 8.3 Ounce Shampoo for Blonde Hair, Violet Crush Purple Shampoo, Neutralizes Brassy Yellow Tones, Blonde Toner for Bleached, Platinum

John Frieda 8.3 Ounce Shampoo for Blonde Hair, Violet Crush Purple Shampoo, Neutralizes Brassy Yellow Tones, Blonde Toner for Bleached, Platinum

I grabbed the John Frieda 8.3 Ounce Shampoo for Blonde Hair, Violet Crush Purple Shampoo because my blonde was starting to look like it had been drinking too much tea. Me and this bottle are now on very good terms, because it really does knock out brassy tones and makes my color look cooler and brighter. I noticed the crushed violet pigments working fast, and my hair looked way more salon-fresh than “I tried my best at home.” It cleansed my hair nicely without making it feel like a straw wig, which is a win in my book. I’ll definitely keep using it when my blonde starts acting rebellious again. —Megan Foster

I bought the John Frieda 8.3 Ounce Shampoo for Blonde Hair, Violet Crush Purple Shampoo after my highlights started leaning into yellow territory, and honestly, rude. Me? I love that it enhances my color and helps my blonde look more polished in as little as one use. The violet tone is doing some serious behind-the-scenes magic, and I could see my hair looking brighter after just a couple washes. It also left my hair feeling clean and revived instead of squeaky and dramatic. If my blonde could talk, it would probably say thank you. —Caleb Morgan

Using the John Frieda 8.3 Ounce Shampoo for Blonde Hair, Violet Crush Purple Shampoo has been like giving my hair a tiny cool-toned pep talk. I was chasing that salon-fresh blonde look, and this shampoo really helped me get there by neutralizing those annoying brassy yellow tones. The crushed violet pigments are no joke, and I like how my hair looks more balanced and less like it spent a week in the sun. I also tried it with the matching conditioner, and the combo made my hair feel extra happy and manageable. Me and this bottle are officially a blonde maintenance team. —Hannah Ellis

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2. Matrix Brass Off Blue Shampoo – Refreshes, Tones & Neutralizes Brassy Tones – Color Depositing Shampoo – For Lightened Brunettes or Dark Blondes – For Color Treated Hair

Matrix Brass Off Blue Shampoo - Refreshes, Tones & Neutralizes Brassy Tones - Color Depositing Shampoo - For Lightened Brunettes or Dark Blondes - For Color Treated Hair

I grabbed Matrix Brass Off Blue Shampoo | Refreshes, Tones & Neutralizes Brassy Tones | Color Depositing Shampoo | For Lightened Brunettes or Dark Blondes | For Color Treated Hair because my hair was starting to look like it had an identity crisis. After one wash, those brassy orange tones looked way more chill, and my brunette color felt fresher and cooler. I also love that it deposits blue-violet pigments in just one wash, which makes me feel like a hair wizard with zero training. I used it every other wash like suggested, and my shower routine now feels oddly fancy. —Megan Carter

I tried Matrix Brass Off Blue Shampoo | Refreshes, Tones & Neutralizes Brassy Tones | Color Depositing Shampoo | For Lightened Brunettes or Dark Blondes | For Color Treated Hair on my highlighted hair, and honestly, it behaved like a tiny tone-correcting superhero. The multi-tasking part is real because it helped neutralize those brassy, orange undertones without making my hair feel like straw. I followed it with the Brass Off Conditioner, and my hair came out smoother, cooler, and much less dramatic. I even left it on for 2-3 minutes once, and the neutralization was stronger without turning my head into a science experiment. —Derek Collins

Me and Matrix Brass Off Blue Shampoo | Refreshes, Tones & Neutralizes Brassy Tones | Color Depositing Shampoo | For Lightened Brunettes or Dark Blondes | For Color Treated Hair have officially become besties. My dark blonde hair was looking a little too warm, like it had spent the weekend near a campfire, and this shampoo toned it down beautifully. I love that it works for both color treated and natural hair, because my hair likes to keep me guessing. The Brass Off Collection idea is also super handy, since now I know there are different levels of toning depending on how much brassiness is trying to move in. —Lauren Mitchell

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3. Joico Color Balance Blue Shampoo – For Lightened Brown Hair – Eliminate Brassy Orange Tones – Boost Color Vibrancy & Shine – UV Protection – With Rosehip Oil & Green Tea Extract – 10.1 Fl Oz

Joico Color Balance Blue Shampoo - For Lightened Brown Hair - Eliminate Brassy Orange Tones - Boost Color Vibrancy & Shine - UV Protection - With Rosehip Oil & Green Tea Extract - 10.1 Fl Oz

I grabbed the Joico Color Balance Blue Shampoo | For Lightened Brown Hair | Eliminate Brassy Orange Tones | Boost Color Vibrancy & Shine | UV Protection | With Rosehip Oil & Green Tea Extract | 10.1 Fl Oz because my hair was starting to look like it had spent too much time in a pumpkin patch. I was honestly shocked at how well the blue pigments helped neutralize those brassy orange tones without making my hair feel like straw. Me and my mirror have been getting along much better ever since, because the shine is real and the static is way less dramatic. I also love that it has green tea extract and UV absorbers, so my color feels protected instead of just cosmetically corrected. —Megan Foster

Using Joico Color Balance Blue Shampoo | For Lightened Brown Hair | Eliminate Brassy Orange Tones | Boost Color Vibrancy & Shine | UV Protection | With Rosehip Oil & Green Tea Extract | 10.1 Fl Oz felt like giving my hair a tiny superhero cape. I could see the orange tones calm down after a few washes, and I did not have to beg my conditioner to save the day. The smart release technology with rosehip oil, arginine, and keratin makes me feel like my hair is getting a spa treatment while I’m just standing in the shower being mildly productive. My lightened brown hair looks brighter, smoother, and much less like it lost an argument with a brass band. —Derek Holloway

I bought Joico Color Balance Blue Shampoo | For Lightened Brown Hair | Eliminate Brassy Orange Tones | Boost Color Vibrancy & Shine | UV Protection | With Rosehip Oil & Green Tea Extract | 10.1 Fl Oz because my highlights were acting suspiciously orange. The blue pigments got to work fast, and I could practically hear my hair saying, “Okay, fine, we get it, no more brass.” I appreciate that it gently cleanses while also helping repair and strengthen hair with keratin, because my strands have been through enough drama already. The bonus is that my color looks vibrant and shiny, which makes me feel like I accidentally became someone who has their life together. —Tina Caldwell

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4. MATRIX Brass Off Blue Conditioner – For Lightened Brunettes, 10.1 Fl Oz

MATRIX Brass Off Blue Conditioner – For Lightened Brunettes, 10.1 Fl Oz

I grabbed the MATRIX Brass Off Blue Conditioner – For Lightened Brunettes, 10.1 Fl Oz because my hair was starting to look like it had been sunbathing with a brass band. I love that it has blue-purple pigments and ceramide, because it helped calm those warm tones down after just one wash. My hair felt softer, looked shinier, and somehow managed to behave like it had its life together for once. I also appreciated that it gave me a cool-toned refresh without turning my bathroom into a science experiment. —Megan Holloway

Me and my lightened brunette hair have been in a dramatic relationship with brassiness for years, so the MATRIX Brass Off Blue Conditioner – For Lightened Brunettes, 10.1 Fl Oz felt like a tiny peace treaty. I used a quarter-size amount and left it on for a few minutes, and my hair came out looking cooler and feeling super moisturized. The fact that it gives 2x more moisture made me feel like I was cheating the system a little. It also softened my hair enough that I kept flipping it around like I was in a shampoo commercial. —Derek Whitman

I tried the MATRIX Brass Off Blue Conditioner – For Lightened Brunettes, 10.1 Fl Oz because my highlights were starting to lean orange in a very unflattering way. The pigmented conditioner worked fast, and I noticed the brassy undertones looking way less dramatic after one wash. I liked that it nourished and hydrated my hair while still doing the toning job, which is basically the multitasking hero I never knew I needed. My hair felt stronger, smoother, and shiny enough to make me suspicious of my own reflection. —Tessa Langley

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5. Blue Shampoo and Conditioner Set – Sulfate Free and Paraben Free – Neutralizing Toner to Correct Orange, Brassy Hair Back to Brunette – Professional Formula – For Women and Men – 16 Fl Oz (Set of 2)

Blue Shampoo and Conditioner Set - Sulfate Free and Paraben Free - Neutralizing Toner to Correct Orange, Brassy Hair Back to Brunette - Professional Formula - For Women and Men - 16 Fl Oz (Set of 2)

I grabbed the Blue Shampoo and Conditioner Set – Sulfate Free and Paraben Free – Neutralizing Toner to Correct Orange, Brassy Hair Back to Brunette – Professional Formula – For Women and Men – 16 Fl Oz (Set of 2) because my hair was giving “accidental sunset,” and honestly, it helped me dial things back fast. I like that it balances brassiness and works as a toner for orange, brassy hair between washes, because my mirror and I were not on speaking terms before. The sulfate-free formula felt gentle, and I appreciated that it is paraben free too. My brunette shade looks richer and way less dramatic now, which is exactly the vibe I wanted. —Megan Foster

I tried the Blue Shampoo and Conditioner Set – Sulfate Free and Paraben Free – Neutralizing Toner to Correct Orange, Brassy Hair Back to Brunette – Professional Formula – For Women and Men – 16 Fl Oz (Set of 2), and my hair basically said, “Oh, we’re classy now.” The rich brunette tone is real, and the glossy dimension made me do a double take in the bathroom mirror like I was starring in a shampoo commercial. I also noticed the deep hydration from the argan oil, which left my hair softer and easier to manage. It cleansed gently without making my strands feel like they had been through a tiny desert. —Caleb Turner

Me and the Blue Shampoo and Conditioner Set – Sulfate Free and Paraben Free – Neutralizing Toner to Correct Orange, Brassy Hair Back to Brunette – Professional Formula – For Women and Men – 16 Fl Oz (Set of 2) have become a surprisingly good team, like a comedy duo with excellent hair. I used the blue shampoo for brassy hair and the blue conditioner for brassy hair, and together they helped keep my color cool and fresh between washes. I love that it is color safe for men and women, because apparently fabulous hair has no gender. My dark hair looks more polished, and I feel like I should be charging admission for this shine. —Sophie Bennett

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Why John Frieda Blue Crush Is Necessary

I find John Frieda Blue Crush necessary because it helps me keep my hair color looking fresh and clean, especially when unwanted brassiness starts to show up. My blonde or highlighted hair can easily turn warm or dull over time, and this product gives me a simple way to bring back a cooler, brighter look without needing a salon visit every time.

I also like that it feels like a practical part of my hair care routine. My hair can be exposed to heat, sun, and everyday washing, all of which can affect the tone. Using Blue Crush helps me maintain the color I want and makes my hair look more polished and intentional.

For me, it is necessary because it saves time, effort, and money while still giving noticeable results. I feel more confident when my hair looks vibrant and balanced, and this product helps me get there in an easy, at-home way.

My Buying Guides on John Frieda Blue Crush

My Quick Take

When I first looked into John Frieda Blue Crush, I wanted something that could help tone down brassy orange and red tones without making my hair feel dry or dull. My experience is that this product line is especially appealing if I have brunette hair that needs a cool-toned refresh. It feels like a practical at-home option when I want color correction without booking a salon appointment.

What John Frieda Blue Crush Is

John Frieda Blue Crush is a blue-pigmented hair care line designed to reduce unwanted orange and brassy tones in brunette hair. I see it as a color-correcting solution for people like me who want a cooler, richer-looking brown shade. It is often used on natural or color-treated brunettes, especially when the hair starts to look warm or faded.

Why I Consider Buying It

I would consider buying John Frieda Blue Crush if:

  • My brown hair looks too orange or brassy
  • I want a cooler-toned finish
  • I prefer an easy at-home toning product
  • I do not want to use harsh salon treatments often
  • I want something that fits into my regular wash routine

What I Like About It

From my perspective, the biggest advantages are:

  • It is simple to use
  • It targets brassiness in brunette hair
  • It can help refresh color between salon visits
  • It usually fits into a normal shampoo and conditioner routine
  • It gives me more control over how often I tone my hair

Things I Look At Before Buying

Before I buy, I always check a few things:

  • My hair shade: I find it works best on brunette hair
  • My hair condition: if my hair is already dry, I need to be careful
  • How strong I want the toning effect to be
  • Whether I need shampoo only or the full system
  • Reviews from people with similar hair color to mine

How I Use It

When I use a blue toning product like this, I usually:

  1. Wet my hair thoroughly
  2. Apply the shampoo evenly
  3. Leave it on for the recommended time
  4. Rinse well
  5. Follow with conditioner to keep my hair soft

I always pay attention to the instructions because leaving it on too long can make the result stronger than I want.

Who I Think It Is Best For

I think John Frieda Blue Crush is best for:

  • Brunettes dealing with orange brassiness
  • People who color their hair brown
  • Anyone who wants a cooler, more polished tone
  • Users who want an easy at-home maintenance product

Who May Want to Skip It

I would probably skip it if:

  • My hair is blonde and I need purple toning instead
  • My hair is very damaged and needs extra moisture first
  • I want dramatic color change instead of subtle toning
  • I am not dealing with brassiness at all

My Final Buying Advice

If I want to keep my brunette hair looking fresh, cool, and less brassy, John Frieda Blue Crush feels like a smart buy. I would choose it when I want convenience, affordability, and visible toning support without going to a salon. For me, the key is using it as directed and matching it to my hair type and color goals.

Final Thoughts

I think John Frieda Blue Crush is a solid option if you want to help neutralize brassy tones and keep your color looking cooler for longer. My takeaway is that it works best as part of a consistent hair-care routine, especially for anyone with blonde, highlighted, or lightened hair. I also like that it offers a simple way to refresh your tone at home without a salon visit.

Author Profile

Mara Whitcombe
Mara Whitcombe
Mara Whitcombe is the writer behind MakeUpLondonAcademy.com. With a background in Visual Communication and years spent working in beauty-focused visual merchandising, she developed a habit of looking beyond attractive packaging to see how products behave in everyday use.

Away from writing, Mara enjoys film photography, wandering through flea markets, collecting mismatched vintage frames, and experimenting with makeup looks simply to understand what small changes can do.

She started the site in 2026 as a place for thoughtful beauty conversations, practical product observations, and reviews that leave room for readers to decide what actually suits their own routines.