Highly pigmented blue-violet pigments to effectively reduce brassy/orange tones
This is a marketing claim; an ingredient list cannot speak to it.
—
Stated by brand
Can’t be confirmed from label.
Sizes & containers
6.8 fl oz (200 ml) · Jumbo · No store price at this size yet
Matrix
Brass Off Custom Neutralization Mask
Mask / Weekly treatment, oil-rich
- Mask / treatment
- Sulfate-free
- Silicone-free
- Protein-free
- Vegan · label states
- Not cruelty-free · PETA-listed
Size6.8 fl oz (200 ml)usual store size · 2 sizes
Price$26.57 Good valueseen at one store · 16.9 oz
Price / oz$1.57/ozat 16.9 oz
Where to buy1 store
Add it to your products. We’ll tell you if it’s ever recalled.
Scent:
The ingredient list declares fragrance. What it smells of is not stated, and we do not guess.
Manufacturer page: matrix.com
Personal fit
Is this right for you?
Complete the consultation to see how well this product fits your hair and your goals. With 6,000+ products in our library, we can match you to the right ones.
- About 20 minutes, and your answers save as you go.
- Every product matched against your hair across the 20 factors we check.
- A personalized routine built around your schedule, styling habits, and local weather.
- Find products that do the same job at a lower cost.
- Your goals, scalp, damage history, water, budget, and scent preferences all shape your plan.
$49 with 60 days of follow-up questions and plan updates
$99 with 12 months. Pay once; the year renews only if you choose.
Factor
Your profile
Fit
Best for hair types
All types
Not in your profile
Moisture level
Moderate
Not in your profile
Slip / detangling
High
Not in your profile
Weight on hair
Medium
Not in your profile
Fragrance
Prominent
Not in your profile
Protein
None
Not in your profile
Silicone / wax buildup
None
Not in your profile
Clarifying wash needed
Low
Not in your profile
Parabens / preservatives
None of these listed
Not in your profile
Essential oils
None listed
Not in your profile
Show all 20 factors we check
The rest of what your plan weighs on this product.
Fast-drying alcohol
None
Not in your profile
Vegan / cruelty-free
Vegan · label statesNot cruelty-free · PETA-listed
Not in your profile
Animal-derived ingredients
Vegan · label states
Not in your profile
Heavy humectants
Not heavy
Not in your profile
Hard-water defence
None
Not in your profile
UV filter
Present
Not in your profile
pH adjusted
Adjusted
Not in your profile
Ingredient list
21 ingredientsAbout average
Not in your profile
Price tier
Salon
Not in your profile
Where to buy it
Salons · Grocery / mass
Not in your profile
The consultation builds your hair profile, checks every factor in this table against it, and tells you where this product fits or what to use instead.
Start your consultation$49 once, with 60 days of follow-up questions and plan updates. Nothing renews, and you never have to buy a product.
Your avoid-list
Lower cost than most masks and treatments
$1.57/oz at 16.9 oz, less than 79% of the 576 masks and treatments , which mostly run $1.80–5.62/oz.
Great for
Protein-sensitive hairthat stiffens when protein is added
Maximum slipfor hair that tangles the moment it is wet
Curly-method routinesno sulfates and no water-insoluble silicones
Silicone-free routinesno silicones appear in the list
Very dry hairno fast-drying alcohol in the list
Sun and colour fadea UV filter is in the list
Maybe skip if
this product has a scent
Hair that needs proteinthere is none in this list
Very dry hairno humectant appears in the list
Vegan and cruelty-freeour record does not support both claims here
Tight budgetsit sits in the upper price tiers
What the formula actually does
Read from the label, not the marketing
Each row says where it comes from: F means we derived it from this product’s own ingredient list, S means it is a claim the brand makes that the formula neither confirms nor contradicts.
Oils and butters
Present, high in the list
Oils sit high in the list: a softening, coating formula.
Weight on the hair
Medium
Middle of the range: noticeable on fine hair, light on coarse hair.
Protein
None
No protein or amino acids in the list.
Water-binding (humectants)
None found
No humectants, so nothing here pulls water into the hair.
Slip and detangling
High
Conditioning agents sit high in the list, so this is a detangling formula.
Needs detergent to remove
No
Nothing here needs a detergent wash to remove.
Fragrance
Prominent
Fragrance is in the first eight ingredients, so it makes up a larger share of the formula.
from the formula
stated by the brand
reported by reviewers
Scale: 1 dot low · 5 dots high, within this product type.
Ingredients that matter
The ingredients that change a decision
The workhorse ingredients, plus anything lower down that changes a decision. The chips name what an ingredient does. They are not safety scores, and no ingredient here is rated good or bad on its own.
| Ingredient | What it does | Why it matters | Chip |
|---|---|---|---|
| WaterAqua/Water/Eau | solvent | The base everything else is dissolved in | Neutral |
| Cetearyl Alcohol | fatty alcohol | Thickens and conditions (not a drying alcohol) | Softens |
| Paraffinum Liquidum/Mineral Oil/Huile Minerale | emollient | Softens and smooths the strand | Heavy |
| Dipalmitoylethyl Hydroxyethylmonium Methosulfate | conditioning agent | Conditions and softens so hair combs through | Detangles |
| Cetyl Esters | light ester | Light slip without much weight | Softens |
| Cetrimonium Chloride | conditioning agent | Conditions and softens so hair combs through | Detangles |
| FragranceParfum/Fragrance | fragrance | The scent | Fragrance |
| Ci 60730/Ext. Violet 2 | colourant | Colours the product, not the hair | Neutral |
| Limonene | fragrance | The scent | Fragrance |
| Hexyl Cinnamal | fragrance | The scent | Fragrance |
| Linalool | fragrance | The scent | Fragrance |
| Benzyl Salicylate | fragrance | The scent | Fragrance |
What the list leaves out, and what it carriesNo sulfates, silicones, or drying alcohols. Protein-free: this is built for moisture rather than for strengthening. Contains fragrance.
Full ingredient list (21)
In the US, ingredients above 1% are listed from most to least. Below 1% they can appear in any order. Each note keeps three things apart: what the ingredient generally does, its role in this type of product, and what its position can tell you.
-
1
Water
· Aqua/Water/Eau
General function
The base of almost every rinse-off and cream hair product. It carries everything else and is normally the first ingredient on the label.
Leading ingredientListed in the first three ingredients, it is likely a structural part of this formula.
- solvent
-
2
Cetearyl Alcohol
General function
A waxy fatty alcohol - nothing like drying alcohol. It gives conditioners their body and leaves a soft, smoothing film on the hair.
Leading ingredientListed in the first three ingredients, it is likely a structural part of this formula.
PubChemMay suitDry, coarse, or high-porosity hairThe waxy solid that gives a conditioner its body. It deposits a soft lubricating layer, which is most of what makes hair feel smooth after rinsing.
May suitFrizz-prone, damaged, or high-friction hairDeposits with the cationic conditioners and helps them lie flat along the strand, which is where the detangling actually comes from.
DependsFine or easily flattened hairNear the top of a conditioner it is doing most of the conditioning, and most of the weighting, at the same time.
- fatty alcohol
- emollient
- thickener
-
3
Paraffinum Liquidum/Mineral Oil/Huile Minerale
General function
Mineral oil. It seals the surface and adds slip, and takes detergent to remove.
Leading ingredientListed in the first three ingredients, it is likely a structural part of this formula.
May suitDry, coarse, or high-porosity hairCoats the surface and slows water leaving the strand, which is usually what coarse hair that dries out fast is missing.
May suitFrizz-prone, damaged, or high-friction hairA thin oil layer lowers friction between strands and flattens the raised cuticle that scatters light and catches on its neighbours.
May suitVery dry or highly damaged hairForms a physical barrier on the strand that slows water leaving it. Nothing else in a formula holds moisture in as bluntly.
- emollient
- sealant
- oil
-
4
Dipalmitoylethyl Hydroxyethylmonium Methosulfate
General function
A biodegradable conditioning agent used for detangling in rich conditioners.
Supporting ingredientListed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
PubChemMay suitFrizz-prone, damaged, or high-friction hairA cationic conditioning agent: it binds to the damaged, negatively charged parts of the cuticle and lowers combing friction there.
May suitVery dry or highly damaged hairThe class that does the detangling in a conditioner. It deposits lubrication where the cuticle is worn.
DependsBuild-up-sensitive routinesSubstantive by design. A routine with no detergent wash gives it nothing to leave with.
- conditioning agent
-
5
Cetyl Esters
General function
A waxy ester blend that replaces spermaceti in creams. It thickens and leaves a smooth, non-greasy finish.
Supporting ingredientListed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
May suitFine or easily flattened hairA light emollient: it softens the surface with noticeably less weight than an oil or a butter.
May suitFrizz-prone, damaged, or high-friction hairSpreads thin and lowers friction between strands without the heaviness of a fixed oil.
- light ester
- emollient
- thickener
-
6
Cetrimonium Chloride
General function
A quick-acting conditioning agent that reduces static and combing force. It also helps keep the formula stable.
Supporting ingredientListed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
International Journal of Cosmetic ScienceMay suitFine or easily flattened hairThe C16 quat binds mostly by charge rather than by chain, so it deposits measurably less than the C22 ones. Less deposit is less conditioning and also less weight, which is usually the trade fine hair wants.
May suitFrizz-prone, damaged, or high-friction hairA cationic conditioning agent: it binds to the damaged, negatively charged parts of the cuticle and lowers combing friction there.
DependsBuild-up-sensitive routinesSubstantive by design. A routine with no detergent wash gives it nothing to leave with.
- conditioning agent
- cleanser
- ▾Below about here, the order stops meaning much. These are usually used at 1% or less.
-
7
Fragrance
· Parfum/Fragrance
General function
An undisclosed blend of scent ingredients. Regulations let it stay unlisted, so a fragrance-free product is the only way to be certain what is not in it.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
May not suitFragrance-sensitive routinesDeclared fragrance. On a fragrance-sensitive routine this is the line that decides it, wherever it sits on the label.
- fragrance
- declared fragrance
-
8
Ci 60730/Ext. Violet 2
General function
A certified colour that tints the product itself. It does not colour hair.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
- colourant
- direct dye
- violet dye
-
9
Phenoxyethanol
- preservative
-
10
Chlorhexidine Digluconate
- preservative
-
11
Limonene
General function
A citrus-smelling fragrance component that EU rules require to be named separately because some people react to it.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
PubChemMay not suitFragrance-sensitive routinesOne of the 26 scent components the EU requires to be named individually above a threshold. It is named because it is a known contact allergen, not because it is unusual.
- fragrance
- named fragrance allergen
-
12
Hexyl Cinnamal
General function
A jasmine-like fragrance component named separately as a recognised allergen.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
PubChemMay not suitFragrance-sensitive routinesOne of the 26 scent components the EU requires to be named individually above a threshold. It is named because it is a known contact allergen, not because it is unusual.
- fragrance
- named fragrance allergen
-
13
Linalool
General function
A floral fragrance component listed separately as a recognised contact allergen.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
PubChemMay not suitFragrance-sensitive routinesOne of the 26 scent components the EU requires to be named individually above a threshold. It is named because it is a known contact allergen, not because it is unusual.
- fragrance
- named fragrance allergen
-
14
Benzyl Salicylate
General function
A soft floral fragrance component listed separately as a recognised allergen.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
PubChemMay not suitFragrance-sensitive routinesOne of the 26 scent components the EU requires to be named individually above a threshold. It is named because it is a known contact allergen, not because it is unusual.
- fragrance
- named fragrance allergen
-
15
Citric Acid
General function
Used to bring the product to a slightly acidic pH, which helps the cuticle lie flat. It is almost always near the end of the list.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
International Journal of TrichologyMay suitBuild-up-sensitive routinesHolds hard-water minerals in solution so they rinse away instead of depositing on the hair.
May suitFrizz-prone, damaged, or high-friction hairThe acid side of pH adjustment, and the reason it matters is measured: alkaline formulas raise the fibre's surface negative charge, increase friction between strands and lift the scales, while lower-pH ones do the reverse.
May suitGray, silver, or brass-prone hairWhere a warm cast comes from water minerals rather than from the hair itself, holding those metals in solution is what removes it.
- pH adjuster
- hard-water chelator
-
16
Benzyl Alcohol
- preservative
- solvent
-
17
Ethylhexyl Methoxycinnamate
General function
A UV filter added to protect the product's colour and, in leave-ins, to slow colour fade.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
PubChemMay suitGray, silver, or brass-prone hairSunlight oxidises hair pigment, and on gray, silver or lightened hair that shows up as yellowing. A UV filter on the label absorbs some of the light that drives it.
- UV filter
-
18
Glycine Soja (Soybean) Oil
· Glycine Soja Oil/Soybean Oil
General function
A light plant oil used to soften and carry other oil-based ingredients.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
May suitDry, coarse, or high-porosity hairCoats the surface and slows water leaving the strand, which is usually what coarse hair that dries out fast is missing.
May suitFrizz-prone, damaged, or high-friction hairA thin oil layer lowers friction between strands and flattens the raised cuticle that scatters light and catches on its neighbours.
- oil
- emollient
-
19
Tocopherol
- antioxidant
- vitamin
-
20
BHT
- antioxidant
-
21
Sodium Hydroxide
General function
A strong base used in trace amounts to raise pH; fully neutralised in the finished product.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
International Journal of TrichologyDependsFrizz-prone, damaged, or high-friction hairThe alkali half of a pH-adjusting pair, used in small amounts to bring a formula up to its target rather than to make it alkaline. Alkaline conditions raise the fibre's surface charge and lift the scales — but the finished pH is not on the label.
- pH adjuster
What the whole list adds up to
- 5 fragrances
- 4 emollients
- 4 named fragrance allergens
- 3 preservatives
- 2 solvents
- 2 thickeners
- 2 oils
- 2 conditioning agents
- 2 pH adjusters
- 2 antioxidants
- 1 fatty alcohol
- 1 sealant
- 1 light ester
- 1 cleanser
Ingredient list captured 2026-09-12. Formulas change, so check the package in your hand when an ingredient matters to you.
Price · 16.9 oz
Seen at
$26.57
Good value under
$83
Usually a good value. Most stores sell it under the $83 line, and products that do this job typically go for about $89 at this size.
Show the price ladder
Where we’ve seen it1 listing · 1 store
-
Walmart
$26.5716.9 oz · $1.57/ozSep 12Lowest per oz
Sorted by price per ounce. Dated observations from our research, not live prices. Direct store pages, no affiliate links. We don’t sell this product.
How we work this out
- 16.9 oz is the size stores list most often; every comparison on this page is made at it. Other sizes are shown in the Sizes row and the store list.
- Seen at $26.57 is the price we have observed for the 16.9 oz. We need three stores before we call a price commonly seen.
- Good value under $83 comes from the 8 products we score as doing the same job as this one. A quarter of them cost less than $4.93/oz; at 16.9 oz that is $83. Under that line you are paying less than most of them.
- About $89 is what those same products typically cost at this size: the midpoint of their prices per ounce, scaled to 16.9 oz.
Formula
5
Formula score
5 of 10
The formula covers the core of what a treatment does, and it costs less per ounce than most masks and treatments in our library.
How the score is counted
- Costs less per ounce than 79% of the 576 masks and treatments we’ve priced
- No protein or amino acids in the formula
- Salon tier, sold at Salons and Grocery / mass
- Salon tier
- Rich emollientsThe depth a treatment step is built around.3 pts
- Conditioning agents up frontWhat makes wet hair comb through.2 pts
- Protein or amino acidsThe strengthening side of a treatment.2 pts
- A humectantBinds water into the hair.1 pt
- A stated dwell timeThe brand says how long to leave it on.1 pt
- Fragrance kept out of the top eightScent as a finishing touch, not a major share.1 pt
The formula score measures completeness for the job: a weighted share of the systems this product type is usually built around that we find in this list. It does not rate how well the product works or its quality, and it never compares across product types.
Does the same job
Formulas that do the same things (cleanse, condition, coat or hold) for less per ounce. Scent, texture and where you buy them can still differ.
KerastaseClosest function
Blond Absolu Masque Ultra-Violet
$9.07/oz $7.50/oz more
- Protein-free
- Curly method
- Silicone-free
- Function
- Also
CurlMixLowest cost per oz
Jasmine Caviar Hair Mask
$5.00/oz $3.43/oz more
- Curly method
- Silicone-free
- Alcohol-free
- Function
- Also
PhytoClose function
PURPLE Repairing No Yellow Mask
$5.20/oz $3.63/oz more
- Protein-free
- Curly method
- Rich
- Function
- Also
See more alternatives in the product library
These products do a similar job. We haven’t matched them to you. Find the one that fits your hair, routine and budget
Final decision
Should you buy it?
A solid pick for the hair it suitsBest user
Hair that stiffens on protein, for a protein-free formula and real detangling slip
Biggest tradeoff
Less suited to anyone sensitive to fragrance, soft, over-stretchy hair that needs protein, or very dry hair that needs water-binding
Best alternative if not
Nothing in our library matches it closely at a lower price.
We do not sell products or take placement fees. This page states what the formula and the prices show; the consultation is what matches it to a person.
Claims check
What the brand says, and what the formula shows
Claims are quoted from the brand. We mark a claim supported, partly supported or conflicting only when the ingredient list speaks to it. Everything else stays "stated by the brand". That isn’t a criticism: most claims can’t be checked from a label.
0
SupportedBacked by ingredients
0
Partly supportedSome supporting logic
4
Stated by brandNo clear evidence
0
Potential conflictFormula works against claim
Customizable toning system (3 or 5 minute dwell for subtle vs maximum neutralization)
This is a marketing claim; an ingredient list cannot speak to it.
—
Stated by brand
Can’t be confirmed from label.
Repairs and protects fragile hair
No protein or bond ingredient appears in the list.
- Dipalmitoylethyl Hydroxyethylmonium Methosulfate
- Cetrimonium Chloride
Stated by brand
Can’t be confirmed from label.
Up to 10X less breakage when used as complete system
A brand-run study. We report it as stated and do not repeat the number as fact.
—
Stated by brand
Only the brand’s testing shows this.
How to read this
We look at the first 10–15 ingredients and what they do in a formula, not at the marketing. If the list doesn't speak to a claim, we don't assume.
Reviewers
What people report
Themes that come up again and again in sourced reviews, written by our researchers in their own words. We don’t store or scrape star ratings.
Several reviewers say the mask did nothing noticeable for their brassy or orange tones despite following the directions exactly.
Many reviewers who liked the mask report it left their hair feeling noticeably softer, shinier, and less brassy after a single use.
Multiple reviewers describe pairing this mask with the Brass Off shampoo and conditioner as one complete toning system.
More from Matrix
How this page was made
- Everything above comes from our researched product record: identity, the ingredient list as printed, the brand's own claims, dated prices and review themes our researchers wrote in their own words. No part of this page is written by hand for one product.
- The value band is a fixed label over two stored numbers: this product’s cost per ounce as a percentile of every product of this type we have priced, each at the size it is most often sold in, and how many products we score as doing the same job cost at least a quarter less per ounce.
- Both scores out of ten are defined on this page. The formula score is completeness for the job, computed from a fixed per-format checklist shown beneath the gauge; the price score is cost per ounce against every product of this type we have priced.
- The "Is this right for you?" panel reads only your own consultation answers, and it applies exactly the filters our recommendation engine applies. It is computed when you load the page and is never stored on it.
- 4 sources consulted for this product (0 manufacturer or regulatory, 0 retailer, 4 editorial), last checked 2026-09-12.
- Ingredient references are linked for 10 of 14 product-aware annotations on this page. Fit notes are general formulation guidance. They aren’t a verdict on the finished product or on you.
- We haven’t tested this product in a lab, and we don’t physically test your hair. Formula readings come from the ingredient list. Claims about how it behaves are labelled as the brand's.
- Ingredient order tells you relative amount only above roughly 1%. Prices are what we saw on the dates shown and can change.
- Ingredient names link to our ingredient library, where each entry shows what it does, which product types use it, and where it usually sits on a label across everything we have researched.
- This is cosmetic information, not medical advice, and nothing here diagnoses or treats a health condition.
- Formula readings: derivation v23. Record last updated 2026-09-12.
