4.5 out of 5 stars (999)

amika bust your brass toning + strength repair mask

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Size: 8 Fl Oz (Pack of 1)
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Frequently bought together

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amika bust your brass cool blonde strength repair shampoo
+
amika bust your brass cool blonde strength repair conditioner, 275ml

Frequently bought together

This item: amika bust your brass toning + strength repair mask
$44.00 ($5.50/fluid ounce)
amika bust your brass cool blonde strength repair shampoo
amika bust your brass cool blonde strength repair shampoo
$29.00 ($3.15/fluid ounce)
amika bust your brass cool blonde strength repair conditioner, 275ml
amika bust your brass cool blonde strength repair conditioner, 275ml
$29.00 ($3.15/fluid ounce)
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Product details

About this product

Top highlights

  • this ultra-luxe hair mask provides superior toning while strengthening, repairing, and hydrating for your brightest and healthiest-looking blonde.
  • this luxurious mask is packed with 3 different types of plant butters and adds a healthy dose of moisture to those dry strands.
  • tones brassiness - counteract any yellow, unwanted brassy hues for an icy blonde, silver or gray. lookin' cool.

Top Brand: Amika Amika

Brand insights

86% of ratings are 4+ stars for this brand

100K+ orders for this brand in past 3 months

Customers usually keep items from this brand

Brand summary

From brand and product information, Amika offers hair care essentials including conditioners, dry shampoos, styling products, and shampoos. Their comprehensive range focuses on delivering salon-quality results for everyday hair care routines.

AI-generated from brand and product info

Product Description

This moisturizing and toning treatment is clinically proven to strengthen damaged hair and bring out the brightest in blonde, silver and gray strands.

Brand Story

hey there, we’re amika. a friend to hair, hairstylists, to her, him, you & them. the name amika means friend in the language Esperanto & is a symbol of our belief in the power of community and the beauty of diversity.

Important information

Safety Information

B08RZ1222Z

Ingredients

Water/Aqua/Eau, Cetearyl Alcohol, Cetyl Alcohol, Isopropyl Myristate, Behentrimonium Chloride*, Dimethicone, Glycerin, Panthenol, Hippophae Rhamnoides (Sea Buckthorn/Argousier) Fruit/Seed Oil, Borago Officinalis (Borage/Bourrache) Seed Oil, Mangifera Indica (Mango/Mangue) Seed Butter, Butyrospermum Parkii (Shea/Karite) Butter, Hydroxypropyl Guar Hydroxypropyltrimonium Chloride, Hydrolyzed Quinoa, Tocopheryl Acetate, Cetrimonium Chloride*, Magnesium Aluminum Silicate, Butylene Glycol, Bis-PCA Dimethicone, Disodium PEG-12 Dimethicone Sulfosuccinate, Aminomethyl Propanol, Chlorphenesin, BHT, Ethylhexylglycerin, Citric Acid, Phenoxyethanol, Isopropyl Alcohol, Benzyl Alcohol, Potassium Sorbate, Sodium Benzoate, Fragrance/Parfum, Benzyl Benzoate, Hydroxycitronellal, Limonene, Violet External 2 (CI 60730) *antistatic agent/agent antistatique

Directions

how-to get your strongest + iciest mane: please note: we suggest applying the bust your brass products on a test strip of hair at the nape of the neck before settling on a routine. customize your blonde routine! if you are a natural blonde (not color-treated): - in the summer months (when hair is more likely to become brassy), use the bust your brass shampoo + conditioner every other wash. - use the bust your brass repair mask 1x per week in place of conditioner. if you are a platinum blonde: - to maintain tone, use bust your brass shampoo + conditioner every other wash. - we suggest alternating bust your brass shampoo + conditioner with the kure shampoo + conditioner and multi-task repair treatment. - use bust your brass repair mask 1x per week in place of conditioner. - if you notice pesky brassiness pop up, use the bust your brass system every wash until desired tone is reached. - keep track of your tone: if you're loving your tone, keep up your routine as is. if you notice brassiness peeking in, increase use the bust your brass mask an additional time per week. if you are a little too icy and nearing a violet tone, cut back on the bust your brass routine for a week or two. if you have highlights, a balayage, or natural-looking (color-treated) blonde hair: - use bust your brass shampoo + conditioner every other wash. - assess hair's tone and pivot (increase or decrease usage) as needed. - those with naturally dark hair should use the bust your brass intense repair mask 1x per week in place of conditioner. - please note: naturally darker or brunette hair will fight to return to natural hair color; in this case, increase the usage of system. if you have gray hair: - use bust your brass shampoo + mask every wash or alternate every other wash with the kure collection. if you are a textured blonde: - follow the regimen suggested above based on type of blonde, but use the bust your brass repair mask in place of conditioner for an extra dose of moisture. the bust your brass repair mask is the perfect mix of toning

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Product guides and documents

Instructions for Use (IFU) (PDF)

About this item

Description

this reparative mask is clinically proven to significantly brighten, intensely hydrate, strengthen + repair hair. it results in healthier hair that is 9.5x more conditioned*, 3.9x stronger* with 74% less breakage.* *clinically proven after 1 use.

Benefits

clinically proven to repair, hydrate, and tone brassy, damaged hair.

Suggested use

After shampooing, gently massage bust your brass mask through wet hair from roots to ends. Leave on for 3–5 minutes, then rinse. Use as a weekly intensive treatment in place of conditioner. Keep track of your tone: if you’re loving your tone, keep up your routine as is. If you notice brassiness peeking in, increase use of bust your brass an additional time per week. if you are a little too cool-toned and nearing a violet tone, cut back on the bust your brass routine for a week or two.

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Complete the regimen

Customer reviews

4.5 out of 5 stars
999 global ratings

Customers say

Customers find the toning mask effective, with one mentioning it works well on bleached highlights, and many noting it brings highlights to a cool tone blonde. The product receives positive feedback for its softness, moisturizing properties that prevent dryness, and pleasant fragrance. Customers disagree on whether the product is worth the price, and while some say it will last a long time, others report durability issues.
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83 customers mention effectiveness, 69 positive, 14 negative
Customers find the toning mask effective, working well as a toner and on colored hair, with one customer specifically noting its success with bleached highlights.AI Generated from the text of customer reviews
...I have thick course hair and can use it almost everyday. But works great and smells great.Read more
...I didn’t take a picture but i savaged what was left and used it. Great product, literally messy deliveryRead more
I have used this multiple times now and it is a great conditioner. Leaves y hair feeling and looking good....Read more
Love this stuff! Smells great and WORKS! Made my hair bright and soft.Read more
59 customers mention color, 51 positive, 8 negative
Customers like how the conditioner affects their hair color, noting that it brings highlights to a cool tone and keeps platinum hair looking good, while effectively neutralizing brassy tones.AI Generated from the text of customer reviews
Great purple conditioner. I only use every couple of weeks. Leaves my hair moisturized, soft and manageable.Read more
...hair brassy I use this with the Malibu hard water shampoo and my hair looks great !Read more
Perfect for blondesRead more
This was great really brightened up my blonde....Read more
46 customers mention softness, 39 positive, 7 negative
Customers find the conditioner makes their hair soft and smooth, with one customer noting its thick and creamy texture.AI Generated from the text of customer reviews
It leaves your hair very nice and soft The pigments are very strong which really takes the brassiness out of your hair I absolutely love itRead more
I like how this product made my hair feel, and smell. I use the shampoo and conditioner along with this productRead more
...& This Bust Your Brass Toning Hair Mask❣️❣️ BEST EVER & Makes My Hair Sooo Soft & Shiny & Just The Perfect Amount Of Platinum Blonde‼️💜💜💜Read more
It makes my hair soft and also takes away a little bit of the brassiness, but not as much as a toner....Read more
30 customers mention fragrance, 27 positive, 3 negative
Customers like the conditioner's fragrance.AI Generated from the text of customer reviews
My go-to de-brasser when I had platinum blonde hair. Smells great, leaves hair super soft, & does a good job toning down the yellow hues.Read more
This takes all the brass out of my hair, smells amazing and makes my hair sooo soft. I’m officially hooked.Read more
...I love it and it also doesn't leave your hair feeling dry. It smells good and it really works....Read more
...The smell is amazing. Good value for the money! I love this product and will definitely buy again.Read more
26 customers mention moisturizing, 22 positive, 4 negative
Customers find the conditioner moisturizing, noting that it doesn't leave hair feeling dry. One customer specifically mentions that it makes bleached parts of their hair soft.AI Generated from the text of customer reviews
This is the best product for brassiness I have found. Moisturizing and toning....Read more
It moisturizes but makes my hair even more brassy.Read more
Great purple conditioner. I only use every couple of weeks. Leaves my hair moisturized, soft and manageable.Read more
...It left my hair feeling soft, hydrated, and moisturized, so I can’t complain about how it made my hair feel. The downside is the size....Read more
9 customers mention brassiness, 7 positive, 2 negative
Customers like how the conditioner works on brassiness, with one mentioning that the brassy appearance is completely gone after use.AI Generated from the text of customer reviews
...this works to keep the brassy color out while making my hair soft and shiny! I use a couple of times a week. Definitely worth the purchase!Read more
So frustrating, I LOVE this products it’s great for brassiness but it was spilled and thickened from being openRead more
...(forgot to take before photos but trust me it was very brassy)....Read more
...Each time my hair looks even more brassy & dull than before I used the product. Texture is good, although that was never an issue for me....Read more
21 customers mention value for money, 10 positive, 11 negative
Customers have mixed opinions about the conditioner's value for money, with some finding it worth the price while others say it's not worth it.AI Generated from the text of customer reviews
...This is pricey but it's an amazing product. If I ever go blonde again this is the only toner I'd use.Read more
...I would def recommend if you are looking for a purple mask. It is worth the price!Read more
...Very disappointed especially for such an expensive product.Read more
...It is very thick and purple. It’s a large size for the price. It took the brass out of my hair big time!Read more
8 customers mention durability, 3 positive, 5 negative
Customers have mixed experiences with the conditioner's durability, with some finding it will last for a long time while others report issues with the container exploding upon arrival.AI Generated from the text of customer reviews
Item arrived with broken cap and spilled everywhere. Cant return because it is spilled.Read more
...Will re-purchase and lasts a while.Read more
...But unfortunately I lost 1/3rd of the product due to it exploding in the ziplock. What a shame, since it's not a cheap hair mask....Read more
...was very noticeable when I ran my fingers through my hair and lost 30 strands AT LEAST.Read more

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Top reviews from the United States

  • Dezii
    5 out of 5 stars
    Verified Purchase

    Great product!

    Reviewed in the United States on November 24, 2025
    Size: 8 Fl Oz (Pack of 1)
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    My hair stylist recommended I try Amika. I used this to bring out the blonde in my hair (2x a week). It helped my hair not only get remain blonde but it softens my hair as well. Wish I could have taken before and after. These photos are just over time but not like right after a wash. Almost forgot to mention the smell is amazing!

    10/10 Recommend!

    6 people found this helpful
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  • Carolina
    5 out of 5 stars
    Verified Purchase

    The Best Toner I've Ever Tried

    Reviewed in the United States on August 21, 2025
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    I'm writing this review years later, but I maintained silver hair for a long time. This is the absolute best toner I've ever found. I've used it for toning lighter brown hair, various shades of blonde, and maintaining silver hair. It makes your hair feel amazing and it cools brass down SO much.

    If you aren't wanting to go silver and you're a very light blonde, don't leave this on for too long or it may turn purple-ish. I made the mistake of doing that right before my wedding and had to get it fixed - the product worked TOO well lol. This is pricey but it's an amazing product. If I ever go blonde again this is the only toner I'd use.

    15 people found this helpful
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  • whisper evans
    5 out of 5 stars
    Verified Purchase

    I love this!!

    Reviewed in the United States on April 10, 2026
    Size: 8 Fl Oz (Pack of 1)
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    If you want your hair WHITE get this. As a blonde you know there is a fine line between white and purple but this stuff works girls !! Can mix it with your conditioner to make it not tomato strong and for a more everyday use. My hair was also soft and smelled beautiful

    4 people found this helpful
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  • Kiki
    5 out of 5 stars
    Verified Purchase

    If I could give 6 stars I would

    Reviewed in the United States on February 1, 2026
    Size: 8 Fl Oz (Pack of 1)
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    I have tried every type of toner and purple and blue shampoo on the market and this is the one product that’s been able to get the reddish yellow hue out of my blonde hair. I was hoping it would tone my hair to a more neutral blond but was pleasantly surprised when my hair turned platinum blonde. It is so soft and shiny too. Good job Amika you have a customer for life. It is worth the $40, I also feel like it must’ve gotten buildup out of my hair because it is somehow so much lighter

    5 people found this helpful
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  • Dail Ruiz
    4 out of 5 stars
    Verified Purchase

    Less yellow

    Reviewed in the United States on August 12, 2025
    Size: 8 Fl Oz (Pack of 1)
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    Used it last night for the first time, can say it did take off a little yellow off of my hair. It didnt leave it silver, as i wanted it (I have bleache my hair twice and only needed hydration and a little purple shampoo). I left it on for 3 minutes just like the direcctions say. It was the correct size and it was really easy to apply and

    2 people found this helpful
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  • Amazon Customer
    5 out of 5 stars
    Verified Purchase

    Only Purple I will use!

    Reviewed in the United States on March 8, 2026
    Size: 8 Fl Oz (Pack of 1)
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    This is the only purple that seems to actually work on my hair! It cools down the blonde after just one use and leaves my hair super silky and bouncy! I use it twice a week and only have to buy it once every 3-4 months! Great product for a great price!

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  • Bittz
    5 out of 5 stars
    Verified Purchase

    Buh Bye, Yellow!

    Reviewed in the United States on May 30, 2026
    Size: 8 Fl Oz (Pack of 1)
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    LOVE this stuff. It is not overly drying even with repeated use.

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  • Fantasy Trantham
    5 out of 5 stars
    Verified Purchase

    It Really Does Kick Brass

    Reviewed in the United States on July 3, 2026
    Size: 8 Fl Oz (Pack of 1)
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    My go-to de-brasser when I had platinum blonde hair. Smells great, leaves hair super soft, & does a good job toning down the yellow hues.

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Top reviews from other countries

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  • soricer62
    5 out of 5 stars
    Verified Purchase

    Parfait

    Reviewed in France on October 4, 2023
    Size: 8 Fl Oz (Pack of 1)
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    excellent soin !!pour redonner de l'éclat aux cheveux blanc !!!Merci

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  • Amy S
    5 out of 5 stars
    Verified Purchase

    UNREAL

    Reviewed in Canada on June 12, 2025
    Size: 8 Fl Oz (Pack of 1)
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    Hair improved brass within literally one use!

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  • Ruth de alba
    1 out of 5 stars
    Verified Purchase

    Me llegó roto y regado

    Reviewed in Mexico on December 8, 2023
    Size: 8 Fl Oz (Pack of 1)
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    No me gustó que me llegara roto … y mucho producto tirado y desperdiciado

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  • Andre
    5 out of 5 stars
    Verified Purchase

    Works Great for My Wife’s Blonde Hair

    Reviewed in the United Kingdom on February 23, 2025
    Size: 8 Fl Oz (Pack of 1)
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    My wife got this, and she’s really happy with it. After using it, she says her hair feels softer, healthier, and more hydrated, which is a nice bonus.

    The scent is amazing, and it’s also vegan and cruelty-free, which she loves. It is a bit on the pricey side, but considering the results, she thinks it’s worth it. If you’re looking for a quality purple mask to keep blonde hair bright, this one’s definitely a good choice.

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  • Trang
    3 out of 5 stars
    Verified Purchase

    Expensive for a mask that works like shampoo

    Reviewed in Australia on September 22, 2025
    Size: 8 Fl Oz (Pack of 1)
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    Not very good for a mask. It’s too similar to other blue shampoo

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Product Summary: amika bust your brass toning + strength repair mask

From amika

4.5 out of 5 stars, 999 ratings

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100+ bought in past week

Price

One-time purchase: $44.00 ( $5.50 / fluid ounce)

Subscribe & Save price (No fees, Cancel anytime): $39.60 ( $4.95 / fluid ounce) 10% Savings

List Price: $44.00

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About this Item

  • this ultra-luxe hair mask provides superior toning while strengthening, repairing, and hydrating for your brightest and healthiest-looking blonde.
  • this luxurious mask is packed with 3 different types of plant butters and adds a healthy dose of moisture to those dry strands.
  • tones brassiness - counteract any yellow, unwanted brassy hues for an icy blonde, silver or gray. lookin' cool.

Product Description

Product Description
This moisturizing and toning treatment is clinically proven to strengthen damaged hair and bring out the brightest in blonde, silver and gray strands.
Brand Story
hey there, we’re amika. a friend to hair, hairstylists, to her, him, you & them. the name amika means friend in the language Esperanto & is a symbol of our belief in the power of community and the beauty of diversity.

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Size

  • 8 Fl Oz (Pack of 1)
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Important Information

Safety Information

B08RZ1222Z

Ingredients

Water/Aqua/Eau, Cetearyl Alcohol, Cetyl Alcohol, Isopropyl Myristate, Behentrimonium Chloride*, Dimethicone, Glycerin, Panthenol, Hippophae Rhamnoides (Sea Buckthorn/Argousier) Fruit/Seed Oil, Borago Officinalis (Borage/Bourrache) Seed Oil, Mangifera Indica (Mango/Mangue) Seed Butter, Butyrospermum Parkii (Shea/Karite) Butter, Hydroxypropyl Guar Hydroxypropyltrimonium Chloride, Hydrolyzed Quinoa, Tocopheryl Acetate, Cetrimonium Chloride*, Magnesium Aluminum Silicate, Butylene Glycol, Bis-PCA Dimethicone, Disodium PEG-12 Dimethicone Sulfosuccinate, Aminomethyl Propanol, Chlorphenesin, BHT, Ethylhexylglycerin, Citric Acid, Phenoxyethanol, Isopropyl Alcohol, Benzyl Alcohol, Potassium Sorbate, Sodium Benzoate, Fragrance/Parfum, Benzyl Benzoate, Hydroxycitronellal, Limonene, Violet External 2 (CI 60730) *antistatic agent/agent antistatique

Directions

how-to get your strongest + iciest mane: please note: we suggest applying the bust your brass products on a test strip of hair at the nape of the neck before settling on a routine. customize your blonde routine! if you are a natural blonde (not color-treated): - in the summer months (when hair is more likely to become brassy), use the bust your brass shampoo + conditioner every other wash. - use the bust your brass repair mask 1x per week in place of conditioner. if you are a platinum blonde: - to maintain tone, use bust your brass shampoo + conditioner every other wash. - we suggest alternating bust your brass shampoo + conditioner with the kure shampoo + conditioner and multi-task repair treatment. - use bust your brass repair mask 1x per week in place of conditioner. - if you notice pesky brassiness pop up, use the bust your brass system every wash until desired tone is reached. - keep track of your tone: if you're loving your tone, keep up your routine as is. if you notice brassiness peeking in, increase use the bust your brass mask an additional time per week. if you are a little too icy and nearing a violet tone, cut back on the bust your brass routine for a week or two. if you have highlights, a balayage, or natural-looking (color-treated) blonde hair: - use bust your brass shampoo + conditioner every other wash. - assess hair's tone and pivot (increase or decrease usage) as needed. - those with naturally dark hair should use the bust your brass intense repair mask 1x per week in place of conditioner. - please note: naturally darker or brunette hair will fight to return to natural hair color; in this case, increase the usage of system. if you have gray hair: - use bust your brass shampoo + mask every wash or alternate every other wash with the kure collection. if you are a textured blonde: - follow the regimen suggested above based on type of blonde, but use the bust your brass repair mask in place of conditioner for an extra dose of moisture. the bust your brass repair mask is the perfect mix of toning

Product Guidance & Documents

Instructions for Use (IFU) (PDF)

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