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Side by side

Biolage Full Rescue Restorative Mask vs Kerastase Densifique Masque Densite

85% function match · 8 of the 10 functions we compared match Formula overlap 83%. Biolage Full Rescue Restorative Mask and Kerastase Densifique Masque Densite share 4 ingredients among each other's most prominent.

Based on your consultation

Which of these fits your hair?

We check your pattern, moisture need, scalp, fragrance tolerance, weight sensitivity and more against each formula — and say which one lines up.

Your profile at a glance

  • Your answers appear here
  • Your answers appear here
  • Your answers appear here
  • Your answers appear here

When each one is the right call

What each formula is built for, from its own ingredient list.

  • Full Rescue Restorative Mask — maximum slip
  • Densifique Masque Densite — maximum slip

Side by side

Every trait, aligned

One row per trait, read from each product’s own ingredient list and record. A dash means we have not researched that field for that product — it is not a “no”.

Trait
Biolage Full Rescue Restorative Mask — 16.9 oz container Biolage

Full Rescue Restorative Mask

  • Mask / treatment
  • Salon
  • Sulfate-free
  • Silicone-free
Kerastase Densifique Masque Densite — 6.8 oz container Kerastase

Densifique Masque Densite

  • Mask / treatment
  • Prestige
  • Sulfate-free
  • Silicone-free
Price, size & price per ounce
$33.93 16.9 oz · $2.36/oz
$55.69 6.8 oz · $8.87/oz

Compared at different sizes — 16.9 oz against 6.8 oz. Per-ounce prices favour the larger bottle.

Value / price positioning
Priced with its peers $$$$$ Salon tier · costs less than 64% of the 354 masks and treatments we’ve priced
Same job for less elsewhere $$$$$ Prestige tier · costs more than 90% of the 354 masks and treatments we’ve priced
Best for hair types
All types Nothing in the formula or the claims narrows this to one pattern. Your hair
All types Nothing in the formula or the claims narrows this to one pattern. Your hair
Moisture level Same
Moderate Humectants in the working part of the formula. Your hair
Moderate Humectants in the working part of the formula. Your hair
Time on the hair
Short A short wait — it fits inside an ordinary shower. Your hair
—
Slip / detangling Same
High Conditioning agents sit high in the list — this is a detangling formula. Your hair
High Conditioning agents sit high in the list — this is a detangling formula. Your hair
Weight on hair Same
Medium Middle of the range — noticeable on fine hair, light on coarse hair. Your hair
Medium Middle of the range — noticeable on fine hair, light on coarse hair. Your hair
Fragrance
Present Fragrance is listed; it sits below the working ingredients. Your hair
Present Fragrance is listed; it sits below the working ingredients. Your hair
Protein Same
Minor Protein appears, low enough to be a supporting ingredient. Your hair
Minor Protein appears, low enough to be a supporting ingredient. Your hair
Silicone / wax buildup Differs
High Water-insoluble silicones or waxes: a detergent wash is what removes them. Your hair
None Nothing here needs a detergent wash to remove. Your hair
Clarifying wash needed
Moderate Your hair
Low Your hair
Oils and butters Same
None No oils or butters in the list. Your hair
None No oils or butters in the list. Your hair
Formula completeness
out of 10
Covers the core
out of 10
Covers the core
Who should choose this
  • 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
  • Matte, textured stylesabsorbent powders do the mattifying
  • 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
Why you might skip it
  • Scents bother youthis product carries a scent
  • Very dry or damaged hairit contains fast-drying alcohol
  • Stretching wash dayswaxes stay until a detergent wash removes them
  • Scents bother youthis product carries a scent
  • Very dry or damaged hairit contains fast-drying alcohol
  • Dry or very humid airwhere heavy humectants work against you
from the formula stated by the brand reported by reviewers Scale: 1 dot low · 5 dots high, within this product type.
More facts about each one
Type
Mask / treatment
Mask / treatment
Where to buy
Salons · Brand website · Ulta …
Brand website · Salons
Free of
  • sulfate-free
  • silicone-free
  • curly-method compatible
  • sulfate-free
  • silicone-free
  • curly-method compatible
Cruelty-free
—
Not cruelty-free · PETA-listed
Scent
Scented, not described
Scented, not described
Time on hair
3–5 min
—
How often
weekly
weekly
Treatment focus
protein
—

Facts as we recorded them. A dash means we have not researched that field for that product — it is not a "no".

The bottom line

The bottom line depends on your hair

Which of these two suits you is a question about your hair, not about them. The consultation answers it — and tells you what your routine needs around it.

Take the consultation

$49.00 once, for your consultation and hair profile. No subscription, no required purchases.

The detail behind the table

Where the readings above come from: the ingredient lists themselves, each brand’s claims checked against them, what owners report, and cost per ounce in context.

Shared and distinct ingredients

Shared and distinct ingredients

Computed from the ingredient lists as printed. "Shared" means both lists carry it; where it sits on each label is stated, because position is what tells you how much.

What both formulas carry

IngredientFull Rescue Restorative MaskDensifique Masque Densite
Water
Neutral
#1Leading
#1Leading
Hydroxypropyl Starch Phosphate
Holds
#2Leading
#2Leading
Quaternium-87
Detangles
#4Supporting
#3Leading
Stearyl Alcohol
Softens
#5Supporting
#4Supporting
Behentrimonium Chloride
Detangles
#6Supporting
#5Supporting
Isononyl Isononanoate
Softens
#7Supporting
#7Supporting
Fragrance
Fragrance
#10Below the 1% line
#31Below the 1% line
Isopropyl Alcohol
Drying
#15Below the 1% line
#11Below the 1% line
Propylene Glycol
Moisturizes
#11Below the 1% line
#6Supporting
Cetyl Esters
Softens
#9Secondary
#8Supporting
Hexyl Cinnamal
Fragrance
#20Below the 1% line
#16Below the 1% line
Linalool
Fragrance
#24Below the 1% line
#19Below the 1% line

What only one of them carries

Full Rescue Restorative Mask

Densifique Masque Densite

Full ingredient list — Full Rescue Restorative Mask (28)
Full ingredient list — Densifique Masque Densite (31)

Claims check

What each brand says, against what each formula shows

Claims are quoted from each brand. We only mark one supported, partly supported, or conflicting when that product’s ingredient list actually speaks to it.

VerdictsFull Rescue Restorative MaskDensifique Masque Densite
Supported
0
0
Partly supported
1
0
Stated by brand
3
1
Potential conflict
0
0

Full Rescue Restorative Mask

  • 15x smoother hair after one useStated by brandOnly the brand’s testing shows this.
  • 71% more hydration after one useStated by brandOnly the brand’s testing shows this.
  • immediately fuller looking hairStated by brandNot something a label can show.
  • conditions, strengthens, and softens strandsPartly supportedSupports the surface, not a treatment.

Densifique Masque Densite

  • enables an immediate hair transformationStated by brandCan’t be confirmed from label.

What owners say

What people report

Recurring themes our researchers wrote in their own words from sourced reviews. We do not store or scrape star ratings, and we never balance one product’s themes against another’s by inventing them.

Full Rescue Restorative Mask

Improves shine and softness with pleasant scent

Amazon reviewer "Miranda M." (Canada), 5 stars: "This hair mask is awesome! I leave it on my hair for about half an hour! The smell is so nice and my hair is shiny and soft!"

Helped reduce postpartum breakage

Amazon reviewer describing postpartum hair loss, 5 stars: "Made my postpartum breakage turn into growth without any other effort...this is soooo worth it."

Can leave fine/thin hair feeling overly soft or limp

Amazon reviewer, 3 stars: "It's good quality, and there's a good amount of product in the jar, but it leaves my thin hair too soft."

Densifique Masque Densite

Significantly improves overall hair condition, appearance, and health with noticeable results

Target shoppers using the mask and reporting visible improvements in their hair quality and appearance

Price check

Cost per ounce, in context

Cost per ounce against every product of this type we have priced, each at the size it is most often sold in. Value labels are computed from that percentile and from how many products that do the same job cost less; they are comparisons, not judgements about a brand.

$2.36/oz vs $8.87/oz — Kerastase Densifique Masque Densite costs about 3.8× more per ounce than Biolage Full Rescue Restorative Mask.

$0.19/oz median $3.64/oz $24.50/oz $2.36/oz Full Rescue Restorative Ma $8.87/oz Densifique Masque Densite

Every mark sits on one distribution because these are compared against the same set: 354 masks and treatments with a computable unit price.

Value readFull Rescue Restorative MaskDensifique Masque Densite
Label
Priced with its peersSits in the middle of the range for masks and treatments per ounce.
Same job for less elsewhereYou are paying above the range for a formula close to several lower-priced options.

Computed from cost per ounce against every product of this type we have priced, and from how many products that do the same job cost less. It is a comparison, not a judgement about the brand.

Compare with something else

Close formulas to each of these, as their own comparison pages.

Full Rescue Restorative Mask vs Specifique Masque RehydratantKerastase · 95% function matchDensifique Masque Densite vs Vegan Hair Deep Conditioner Strengthening Hair Mask with Almond & Shea ButterNative · 95% function matchFull Rescue Restorative Mask vs Babassu & Mint Damage Repair Bond TreatmentMielle Organics · 90% function matchDensifique Masque Densite vs Super-Charged TreatmentPaul Mitchell · 95% function matchFull Rescue Restorative Mask vs Babassu Oil & Mint Deep ConditionerMielle Organics · 90% function matchDensifique Masque Densite vs BC Bonacure Hyaluronic Moisture Kick TreatmentSchwarzkopf Professional · 95% function matchFull Rescue Restorative Mask vs Apple Cider Vinegar Hair MasquedpHUE · 85% function matchDensifique Masque Densite vs Violet Crush Purple Toning MaskJohn Frieda · 95% function match

Full Rescue Restorative Mask · Densifique Masque Densite · All masks and treatments in the library

How this page was made

  • This page is assembled from the same researched records the individual product pages render: identity, each ingredient list as printed, each brand's own claims, dated price observations, and review themes written in our researchers' own words. Nothing on it is written per comparison.
  • We do not rank these against each other. Which of them suits you depends on your hair, and that is what the consultation works out.
  • The formula similarity percentage is a stored, precomputed number: position-weighted overlap of the two ingredient lists blended with agreement on the attributes we derive. It measures how alike two formulas are, not how well either works.
  • 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.
  • 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.
  • 7 sources were consulted across the products on this page.
  • Ingredient order tells you relative amount only above roughly 1%. Prices are observations on the dates shown and change without notice. We do not sell these products and take no placement fees.
  • This is cosmetic information, not medical advice, and nothing here diagnoses or treats a health condition.

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