provides intense hydration to dry, damaged hair
Humectants or rich emollients sit in the first eight ingredients.
- Stearyl Alcohol
- Propylene Glycol
- Isononyl Isononanoate
Supported
Helps hair feel hydrated.
Kerastase
Specifique Masque Rehydratant
Mask / Moisture treatment, lean
- Mask / treatment
- moisture
- Sulfate-free
- Silicone-free
- Protein-free
- Not cruelty-free · PETA-listed
Size6.76 fl oz
Price$63.15seen at one store · 6.76 oz
Price / oz$9.34/ozat 6.76 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.
Listing used for research: lookfantastic.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 21 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
Time on the hair
Short
Not in your profile
Slip / detangling
High
Not in your profile
Weight on hair
Medium
Not in your profile
Fragrance
Present
Not in your profile
Protein
None
Not in your profile
Silicone / wax buildup
High
Not in your profile
Clarifying wash needed
Moderate
Not in your profile
Parabens / preservatives
None of these listed
Not in your profile
Show all 21 factors we check
The rest of what your plan weighs on this product.
Essential oils
None listed
Not in your profile
Fast-drying alcohol
Moderate
Not in your profile
Vegan / cruelty-free
Not cruelty-free · PETA-listed
Not in your profile
Animal-derived ingredients
Not yet verified
Not in your profile
Heavy humectants
Heavy
Not in your profile
Hard-water defence
None
Not in your profile
UV filter
None listed
Not in your profile
pH adjusted
Adjusted
Not in your profile
Ingredient list
23 ingredientsAbout average
Not in your profile
Price tier
Prestige
Not in your profile
Where to buy it
Lookfantastic · Salons
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
Same job for less elsewhere
$9.34/oz at 6.76 oz, more than 91% 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
Dry, thirsty hairhumectants and emollients both sit up front
Curly-method routinesno sulfates and no water-insoluble silicones
Silicone-free routinesno silicones appear in the list
Porous, damaged hairceramides are in the list
Maybe skip if
this product has a scent
Very dry or damaged hairit contains fast-drying alcohol
Stretching wash dayswaxes stay until a detergent wash removes them
Hair that needs proteinthere is none in this list
Dry or very humid airwhere heavy humectants work against you
Vegan and cruelty-freeour record does not support both claims here
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
None
No oils or butters in the list.
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)
Moderate
Humectants in the working part of the formula.
Slip and detangling
High
Conditioning agents sit high in the list, so this is a detangling formula.
Time on the hair
5–10 min
A few minutes on the hair before rinsing.
Needs detergent to remove
Yes
Water-insoluble silicones or waxes: a detergent wash is what removes them.
Fragrance
Present
Fragrance is listed; it sits below the working ingredients.
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 |
| Hydroxypropyl Starch Phosphate | starch | Soaks up oil and adds grip | Holds |
| Quaternium-87 | conditioning agent | Conditions and softens so hair combs through | Detangles |
| Stearyl Alcohol | fatty alcohol | Thickens and conditions (not a drying alcohol) | Softens |
| Behentrimonium Chloride | conditioning agent | Conditions and softens so hair combs through | Detangles |
| Propylene Glycol | humectant | Pulls water into the hair | Moisturizes |
| Isononyl Isononanoate | light ester | Light slip without much weight | Softens |
| Cetyl Esters | light ester | Light slip without much weight | Softens |
| Euphorbia Cerifera (Candelilla) WaxCandelilla Cera/Candelilla Wax/Cire De Candelilla | wax | Adds a little grip | Buildup |
| Isopropyl Alcohol | drying alcohol | A small amount, for fast drying | Drying |
| Linalool | fragrance | The scent | Fragrance |
| Limonene | fragrance | The scent | Fragrance |
What the list leaves out, and what it carriesThe list carries no sulfates or silicones. No protein: a moisture formula, not a repair one. Fragrance is on the label. Contains fast-drying alcohol.
Full ingredient list (23)
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
Hydroxypropyl Starch Phosphate
General function
A modified starch that thickens and leaves a light, powdery film — often used for body in curl products.
Leading ingredientListed in the first three ingredients, it is likely a structural part of this formula.
May suitFine or easily flattened hairAdds grip and body with no oil attached, which is what lifts fine hair at the root instead of weighing it down.
DependsCurls or waves needing flexible holdHow rigid the finish is depends on which polymer it is and what the formula pairs with it, not on there being one.
DependsMaximum-hold stylingStarch gives texture and grip rather than a set film; firm hold usually needs a polymer alongside it.
- starch
- thickener
- film former
-
3
Quaternium-87
General function
A plant-derived conditioning agent used for slip and static control.
Leading ingredientListed in the first three ingredients, it is likely a structural part of this formula.
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.
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
-
4
Stearyl Alcohol
General function
A fatty alcohol that thickens conditioners and helps them coat the hair evenly.
Supporting ingredientListed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
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
-
5
Behentrimonium Chloride
General function
A positively charged conditioning agent that binds to damaged, negatively charged spots on the hair. It is the main detangling ingredient in most rinse-out conditioners.
Supporting ingredientListed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
International Journal of Cosmetic ScienceMay suitDry, coarse, or high-porosity hairElectrokinetic measurement puts the C22 quat ahead of the C16 ones for deposition: the longer chain adds van der Waals stabilisation on top of the charge binding. That extra deposit is what coarse hair usually needs to comb through.
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
-
6
Propylene Glycol
General function
A small humectant and solvent that keeps formulas stable and helps active ingredients spread.
Supporting ingredientListed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
PubChemMay suitFine or easily flattened hairLight and water-binding rather than oily, so it adds less weight than oils or butters do.
May suitVery dry or highly damaged hairA small water-binding solvent. It holds moisture and helps the rest of the formula spread evenly over the strand.
DependsClimate-sensitive or frizz-prone hairA humectant follows the air: it holds water in humid conditions and can give it up in very dry ones. Climate decides what it does more than the label does.
- humectant
- solvent
-
7
Isononyl Isononanoate
General function
A very light, dry-feeling ester used where a silky finish without weight is wanted.
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
-
8
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
- ▾Below about here, the order stops meaning much. These are usually used at 1% or less.
-
9
Caprylyl Glycol
General function
A gentle preservative helper that also holds a little moisture.
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 suitVery dry or highly damaged hairHumectants bind water into the strand, and water — not oil — is what makes dry hair flexible instead of brittle.
DependsClimate-sensitive or frizz-prone hairA humectant follows the air: it holds water in humid conditions and can give it up in very dry ones. Climate decides what it does more than the label does.
- preservative
- humectant
-
10
Capryloyl Glycine
General function
An amino-acid derivative used to support the preservative system and, in scalp products, for a clarifying claim.
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 suitBuild-up-sensitive routinesCleansing is what lifts deposited films off the strand. How completely depends on which detergent it is and how high on the list it sits.
DependsVery dry or highly damaged hairEvery detergent removes some sebum along with the product it is there to wash out. Which detergent it is matters more than that there is one.
- preservative
- cleanser
-
11
Euphorbia Cerifera (Candelilla) Wax
· Candelilla Cera/Candelilla Wax/Cire De Candelilla
General function
A plant wax used as a vegan alternative to beeswax for hold and sheen.
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 suitMaximum-hold stylingA wax holds by staying solid on the strand, which gives grip and separation rather than a set film that cracks.
DependsCurls or waves needing flexible holdHow rigid the finish is depends on which polymer it is and what the formula pairs with it, not on there being one.
- wax
- film former
-
12
Isopropyl Alcohol
General function
A fast-evaporating alcohol used as a solvent and to speed drying. Well down the list it is a processing aid; near the top it can leave hair feeling dry.
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 suitFine or easily flattened hairEvaporates on contact, which is how a spray sets almost instantly and leaves no weight behind it.
- drying alcohol
- solvent
-
13
Phenoxyethanol
- preservative
-
14
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
-
15
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
-
16
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
-
17
Geraniol
General function
A rose-scented fragrance component, listed on its own 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.
May 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
-
18
Citronellol
General function
A rose-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
-
19
Alpha-Isomethyl Ionone
General function
A violet-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
-
20
2-Oleamido-1,3-Octadecanediol
General function
A ceramide-like lipid used to reinforce the outer surface of damaged 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.
May suitFrizz-prone, damaged, or high-friction hairRestoring surface lipids lowers friction between strands, which is where much of the roughness in damaged hair comes from.
May suitProtein-sensitive hairA lipid, not a protein, despite sitting alongside proteins in most repair claims. It does not carry the stiffening effect.
May suitVery dry or highly damaged hairCeramides are the lipid class bleaching and heat deplete. Replacing them works on the surface layer rather than adding protein stiffness.
- ceramide
- emollient
-
21
Blue 1
· CI 42090/Blue 1
- colourant
- direct dye
- blue dye
-
22
Ci 19140/Yellow 5
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.
May suitGray, silver, or brass-prone hairA violet or blue colorant sits opposite yellow on the colour wheel, so a trace of it deposited on the surface makes a warm cast read cooler. It washes out over the following few washes.
- colourant
-
23
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
What the whole list adds up to
- 6 fragrances
- 5 named fragrance allergens
- 4 emollients
- 3 solvents
- 3 thickeners
- 3 preservatives
- 2 film formers
- 2 conditioning agents
- 2 cleansers
- 2 humectants
- 2 light esters
- 2 colourants
- 1 starch
- 1 fatty alcohol
Ingredient list captured 2026-08-24. Formulas change, so check the package in your hand when an ingredient matters to you.
Price · 6.76 oz
Seen at
$63.15
Good value under
$19
Priced above the products that do the same job. Stores sell it above the $19 line; products that do this job typically go for about $25 at this size.
Show the price ladder
Where we’ve seen it1 listing · 1 store
-
lookfantastic (UK, converted from GBP 49.73)
$63.156.76 ozAug 24
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
- 6.76 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 $63.15 is the price we have observed for the 6.76 oz. We need three stores before we call a price commonly seen.
- Good value under $19 comes from the 8 products we score as doing the same job as this one. A quarter of them cost less than $2.76/oz; at 6.76 oz that is $19. Under that line you are paying less than most of them.
- About $25 is what those same products typically cost at this size: the midpoint of their prices per ounce, scaled to 6.76 oz.
Formula
7
Formula score
7 of 10
Sold through salons, and 8 products that do the same job cost less. Part of what you pay for is where it is sold.
How the score is counted
- 8 products that do the same job cost less per ounce
- Costs more per ounce than 91% of the 576 masks and treatments we’ve priced
- No rich emollients in the formula
- Reviewers mention 2 things they like about how it performs
- 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, for less
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.
BiolageLowest cost per oz
Full Rescue Restorative Mask
$2.59/oz $6.75/oz less
- Curly method
- Silicone-free
- Quick
- Function
- Also
SEENFragrance-free
Frizz + Repair Treatment Mask, Fragrance Free
$4.50/oz $4.84/oz less
- Fragrance-free
- Unscented
- Protein-free
- Function
- Also
CeremoniaClose function
Weightless Hydration Mask
$5.00/oz $4.34/oz less
- Protein-free
- Curly method
- Silicone-free
- 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?
Good for the right person, not the lowest costBest user
Hair that stiffens on protein who want a protein-free formula and real detangling slip
Biggest tradeoff
Not ideal for anyone sensitive to fragrance, very dry or high-damage hair, or anyone stretching time between washes
Best alternative if not
Biolage Full Rescue Restorative Mask, for similar results 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.
2
SupportedBacked by ingredients
1
Partly supportedSome supporting logic
0
Stated by brandNo clear evidence
1
Potential conflictFormula works against claim
infused with amino acids and ceramides
No protein or amino acid appears in the ingredient list.
—
Potential conflict
Not in the ingredient list.
promotes smooth and silky appearance
Silicones or film formers smooth the cuticle, which is the usual mechanism.
- Hydroxypropyl Starch Phosphate
- Euphorbia Cerifera (Candelilla) Wax
Supported
Smoother strands, less frizz.
boosts softness and shine
Light esters can add a little gloss without a full shine system.
- Isononyl Isononanoate
- Cetyl Esters
Partly supported
A hint of gloss.
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.
Hydrates fine or dry hair without weighing it down and restores shine
Exact official/Sephora reviewersGel texture strengthens and nourishes damaged lengths
Exact product reviewersSome thick/coarse reviewers find the result only moderate
Exact Sephora reviewerMore from Kerastase
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 (3 manufacturer or regulatory, 1 retailer, 0 editorial), last checked 2026-08-25.
- Ingredient references are linked for 11 of 20 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 2026-08-25.
