amika Bust Your Brass Cool Blonde Strength Repair Conditioner Review
BeautyBrief™
Brand
amika
Product
bust your brass cool blonde strength repair conditioner
Claims check
You get genuine violet-pigment toning and a conditioning blend, but the reported 2.2x strength and 55% less breakage require the matching shampoo-and-conditioner system.
Shopper fit
- Damaged Hair
- Color-Treated Hair
- Blonde Hair
- Silver/Gray Hair
Formula flags
- Fragrance
- Silicones
- Added color
Shopper preferences
- Vegan
- Cruelty-Free
Key ingredients
| Ext. Violet 2 | Provides brass-neutralizing violet pigment. |
|---|---|
| Cetearyl Alcohol | Adds softness and structure. |
| Cetrimonium Chloride | Improves detangling and reduces friction. |
| Glycerin | Adds humectant support. |
| Trimethylsiloxyamodimethicone | Adds smoothing support. |
Price tier
$$ Mid-Range
Value check
At the Mid-Range tier, you get brass-neutralizing color and substantial slip, while paired-system strength statistics do not establish conditioner-only superiority.
Where to buy
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Bottom line
If your blonde, silver or gray hair looks brassy, Bust Your Brass offers violet toning and conditioning slip. Its reported breakage and strength gains apply to the shampoo-and-conditioner pairing, so choose it for tone and feel rather than expecting those numbers from the conditioner alone.
If your blonde, silver or gray hair picks up unwanted yellow tones, amika Bust Your Brass Cool Blonde Strength Repair Conditioner combines violet pigment with fatty alcohols, conditioning agents, oils and silicones. You get a toning rinse-out conditioner with enough slip to help detangle processed strands.[1]
amika reports 2.2 times stronger hair and 55% less breakage after one use, but the brand specifies that these results apply when the matching shampoo and conditioner are used together. You should not interpret them as tested outcomes from this conditioner alone.
What it claims
amika says the conditioner tones unwanted yellow and brassy hues, hydrates, and strengthens hair. The brand reports 2.2x stronger hair and 55% less breakage after one use when the shampoo and conditioner are used as a system.[1]
Claims vs. formula
Ext. Violet 2 provides the direct brass-neutralizing color effect. Cetearyl alcohol, cetrimonium chloride, plant butters, hydrolyzed quinoa, and silicone ingredients explain the softness, slip, and friction reduction.
Glycerin adds humectant support, while the richer lipid-and-silicone profile makes this a stronger conditioning step than a bare purple conditioner. The breakage numbers remain system-level evidence.
Ingredients that matter
The ultraviolet dye Ext. Violet 2 is the main color-correction ingredient: it helps counter visible yellow tones rather than bleaching or permanently changing your hair color. Cetearyl alcohol and cetrimonium chloride add softness and detangling slip, while hydrolyzed quinoa and silicone conditioning agents support smoothness and lower friction.
Glycerin, mango and shea butters and sea buckthorn oil broaden the conditioning system. These help explain why the product is useful for lightened or damaged hair, but no single ingredient independently establishes the brand’s system-level 55% breakage claim.
Cetearyl Alcohol
Cetearyl Alcohol is a fatty alcohol used to soften skin, stabilize emulsions, and build creamy texture. It is not the same type of alcohol as ethanol or Alcohol Denat., and…
Read the IngredientBrief
Glycerin
If your skin feels dry or tight, glycerin helps your skin hold moisture. You don't need a high percentage or a separate serum when your moisturizer already works well.
Read the IngredientBriefWhat to expect in the short term
Expect cooler tone, substantial slip, and easier detangling after rinsing. Hair that is already cool-toned should use it less often rather than layering violet products automatically.
What to expect over time
Used according to visible tone needs, it can help maintain a cooler blonde, silver, or gray result while reducing friction in damaged lengths. Overuse can push porous hair too violet.
Who it fits
If your hair is blonde, silver or gray and looks yellow or brassy, the violet tint directly addresses that concern. It also suits hair that is dry or damaged from lightening and benefits from extra conditioning; if your hair tone already looks cool, too much violet may shift it toward purple.
amika labels this conditioner cruelty-free and vegan-certified on its official U.S. page. These attributes concern sourcing and testing, not a guarantee of how the pigment will look on your hair.[1]
Compare before you buy
Compared with a plain purple conditioner, Bust Your Brass offers a more damage-oriented conditioning base plus system-level breakage testing. The Mid-Range value is strongest for shoppers who need both tone correction and substantial conditioning.
Final Assessment
amika Bust Your Brass Cool Blonde Strength Repair Conditioner is a well-built dual-purpose conditioner for blonde and silver/gray hair that needs both brass control and richer slip. The violet pigment handles tone correction, while the strongest strengthening numbers remain attached to the paired shampoo-and-conditioner system.
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Last reviewed: October 2026
Sources
amika. Bust Your Brass Cool Blonde Strength Repair Conditioner. Current official U.S. product page. Accessed October 15, 2026.
Provenance. bust your brass | cool blonde repair conditioner – 2 oz / 60 ml. Current product validation record. Accessed October 15, 2026.
