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Side by side

Kerastase Kerastase Blond Absolu Bain Lumiere Shampoo vs Kerastase Kerastase K Bain Therapiste Balm-in-Shampoo

74% function match · 9 of the 13 functions we compared match Formula overlap 77%. Kerastase Kerastase Blond Absolu Bain Lumiere Shampoo and Kerastase Kerastase K Bain Therapiste Balm-in-Shampoo 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.

  • Kerastase Blond Absolu Bain Lumiere Shampoo — protein-sensitive hair
  • Kerastase K Bain Therapiste Balm-in-Shampoo — fast-oiling scalps

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
Kerastase Kerastase Blond Absolu Bain Lumiere Shampoo — 16.9 oz container Kerastase

Kerastase Blond Absolu Bain Lumiere Shampoo

  • Shampoo
  • Prestige
  • Silicone-free
  • Protein-free
Kerastase Kerastase K Bain Therapiste Balm-in-Shampoo — 8.5 oz container Kerastase

Kerastase K Bain Therapiste Balm-in-Shampoo

  • Shampoo
  • Prestige
  • Moisture-rich
Price, size & price per ounce
$13.25 16.9 oz · $8.15/oz
$41.40 8.5 oz · $4.87/oz
Value / price positioning
Same job for less elsewhere $$$$$ Prestige tier · costs more than 99% of the 817 shampoos we’ve priced
Same job for less elsewhere $$$$$ Prestige tier · costs more than 94% of the 817 shampoos 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
High Humectants near the top — water-binding is a headline mechanism here. Your hair
High Humectants near the top — water-binding is a headline mechanism here. Your hair
Cleansing strength Same
Strong Removes oil, buildup, and most residue — a reset wash. Your hair
Strong Removes oil, buildup, and most residue — a reset wash. Your hair
Slip / detangling Same
Moderate Conditioning agents are present, lower in the list. Your hair
Moderate Conditioning agents are present, lower in the list. Your hair
Weight on hair
Light Water-first and light: unlikely to flatten fine 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 Differs
None No protein or amino acids in the list. Your hair
Minor Protein appears, low enough to be a supporting ingredient. Your hair
Silicone / wax buildup Differs
None Nothing here needs a detergent wash to remove. Your hair
High Water-insoluble silicones or waxes: a detergent wash is what removes them. Your hair
Clarifying wash needed
Low Your hair
Moderate Your hair
Expected lather Same
High Thick foam that spreads quickly through the hair. Your hair
High Thick foam that spreads quickly through the hair. Your hair
Scalp active Same
None No over-the-counter scalp active. Your hair
None No over-the-counter scalp active. Your hair
Hard-water defence Same
None No chelating agent in the list. Your hair
None No chelating agent in the list. Your hair
Formula completeness
out of 10
Complete for its job
out of 10
Complete for its job
Who should choose this
  • Protein-sensitive hairthat stiffens when protein is added
  • Fast-oiling scalpsthat need a real reset wash
  • Fine hairthat flattens under most products
  • Silicone-free routinesno silicones appear in the list
  • Fast-oiling scalpsthat need a real reset wash
  • Dry, thirsty hairhumectants and emollients both sit up front
  • Porous, damaged hairceramides are in the list
  • Very dry hairno fast-drying alcohol in the list
Why you might skip it
  • Scents bother youthis product carries a scent
  • Sulfate-free routinesit uses a sulfate detergent
  • Dry or damaged haira strong detergent system strips as it cleans
  • Scents bother youthis product carries a scent
  • Sulfate-free routinesit uses a sulfate detergent
  • Curly-method routinesthese silicones need a detergent to remove
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
Shampoo
Shampoo
Where to buy
Ulta · Sephora · Amazon …
Target
Free of
  • silicone-free
  • protein-free
—
Cruelty-free
Not cruelty-free · PETA-listed
Not cruelty-free · PETA-listed
Scent
Scented, not described
Scented, not described

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

IngredientKerastase Blond Absolu Bain Lumiere ShampooKerastase K Bain Therapiste Balm-in-Shampoo
Water
Neutral
#1Leading
#1Leading
Sodium Laureth Sulfate
Cleanses
#2Leading
#2Leading
Glycerin
Moisturizes
#3Leading
#4Supporting
Coco-Betaine
Cleanses
#4Supporting
#3Leading
Sodium Chloride
Stabilizes
#5Supporting
#7Supporting
Citric Acid
pH balancer
#7Below the 1% line
#34Below the 1% line
Sodium Benzoate
Stabilizes
#8Below the 1% line
#10Below the 1% line
Salicylic Acid
Active
#12Below the 1% line
#13Below the 1% line
Fragrance
Fragrance
#19Below the 1% line
#36Below the 1% line

What only one of them carries

Kerastase Blond Absolu Bain Lumiere Shampoo

Kerastase K Bain Therapiste Balm-in-Shampoo

Full ingredient list — Kerastase Blond Absolu Bain Lumiere Shampoo (19)
Full ingredient list — Kerastase K Bain Therapiste Balm-in-Shampoo (36)

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.

VerdictsKerastase Blond Absolu Bain Lumiere ShampooKerastase K Bain Therapiste Balm-in-Shampoo
Supported
2
1
Partly supported
0
1
Stated by brand
1
0
Potential conflict
0
0

Kerastase Blond Absolu Bain Lumiere Shampoo

  • Intensely hydratesSupportedHelps hair feel hydrated.
  • Illuminates shiny hairStated by brandCan’t be confirmed from label.
  • Removes impurities and pollutionSupportedResets a coated scalp.

Kerastase K Bain Therapiste Balm-in-Shampoo

  • Repairing Hair, from the Inside OutPartly supportedSupports the surface, not a treatment.
  • Leaves hair visibly shinier and dramatically smootherSupportedSmoother strands, less frizz.

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.

Both praised for shine.

Kerastase Blond Absolu Bain Lumiere Shampoo

Several reviewers call it the best shampoo they have used, with strong repeat-purchase intent

verified purchasers

Reviewers report visibly softer, shinier, more manageable blonde/lightened hair

multiple reviewers, some non-English (French: shine and fragrance both praised)

A recurring complaint is that the bottle runs out quickly relative to its price

price/value-conscious reviewers, echoed on both the 16.9oz and travel-size listings

Kerastase K Bain Therapiste Balm-in-Shampoo

Softness, smoothness, shine, and hydration are recurring benefits

Exact-product retailer/official reviewers

Severely damaged/bleached hair users report reduced breakage and repair

Exact-product retailer/official reviewers

Some fine-hair users report heaviness/grease or reduced volume; scent is generally pleasant

Exact-product retailer/official reviewers

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.

$4.87/oz vs $8.15/oz — Kerastase Kerastase Blond Absolu Bain Lumiere Shampoo costs about 1.7× more per ounce than Kerastase Kerastase K Bain Therapiste Balm-in-Shampoo.

$0.00/oz median $1.47/oz $17.29/oz $8.15/oz Kerastase Blond Absolu Bai $4.87/oz Kerastase K Bain Therapist

Every mark sits on one distribution because these are compared against the same set: 817 shampoos with a computable unit price.

Value readKerastase Blond Absolu Bain Lumiere ShampooKerastase K Bain Therapiste Balm-in-Shampoo
Label
Same job for less elsewhereYou are paying above the range for a formula close to several lower-priced options.
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.

Kerastase Blond Absolu Bain Lumiere Shampoo vs Kerastase Gloss Absolu Bain Hydra-Glaze ShampooKerastase · 100% function matchKerastase K Bain Therapiste Balm-in-Shampoo vs Kerastase Discipline Bain Fluidealiste ShampooKerastase · 100% function matchKerastase Blond Absolu Bain Lumiere Shampoo vs Acidic Grow Full System Densifying ShampooRedken · 100% function matchKerastase K Bain Therapiste Balm-in-Shampoo vs Kerastase Nutritive Bain Satin Riche ShampooKerastase · 99% function matchKerastase Blond Absolu Bain Lumiere Shampoo vs Shampoo Conditioner 2in1Attitude · 100% function matchKerastase K Bain Therapiste Balm-in-Shampoo vs Strength Recovery ShampooBiolage · 94% function matchKerastase Blond Absolu Bain Lumiere Shampoo vs Extra Gentle ShampooAttitude · 100% function matchKerastase K Bain Therapiste Balm-in-Shampoo vs Scalp Sync ShampooBiolage · 94% function match

Kerastase Blond Absolu Bain Lumiere Shampoo · Kerastase K Bain Therapiste Balm-in-Shampoo · All shampoos 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.
  • 8 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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