Skip to main content

Side by side

Kerastase Discipline Kératine Thermique vs Kerastase Resistance Serum Therapiste Serum Strengthening Serum Heat Protectant

85% function match · 8 of the 10 functions we compared match Formula overlap 35%. Kerastase Discipline Kératine Thermique and Kerastase Resistance Serum Therapiste Serum Strengthening Serum Heat Protectant 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.

  • Discipline Kératine Thermique — porous, damaged hair
  • Resistance Serum Therapiste Serum Strengthening Serum Heat Protectant — porous, damaged hair

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

Discipline Kératine Thermique

  • Heat protectant
  • Prestige
  • Sulfate-free
Kerastase Resistance Serum Therapiste Serum Strengthening Serum Heat Protectant — 1.01 oz container Kerastase

Resistance Serum Therapiste Serum Strengthening Serum Heat Protectant

  • Heat protectant
  • Prestige
  • Sulfate-free
Price, size & price per ounce
$46 5.1 oz · $9.02/oz
$38–43 1.01 oz · $38.02/oz

Compared at different sizes — 5.1 oz against 1.01 oz. Per-ounce prices favour the larger bottle.

Value / price positioning
Same job for less elsewhere $$$$$ Prestige tier · costs more than 86% of the 223 heat protectants we’ve priced
Same job for less elsewhere $$$$$ Prestige tier · costs more than 100% of the 223 heat protectants we’ve priced
Best for hair types
Straight–Curly Smoothing and thermal products span straight through curly hair. Your hair
Straight–Curly Smoothing and thermal products span straight through curly hair. Your hair
Moisture level Differs
Moderate Humectants in the working part of the formula. Your hair
Low Humectants appear, but low enough to be a minor part. 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
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 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 Same
High Water-insoluble silicones or waxes: a detergent wash is what removes them. Your hair
High Water-insoluble silicones or waxes: a detergent wash is what removes them. Your hair
Clarifying wash needed
Moderate Your hair
Moderate Your hair
Fast-drying alcohol Same
None No fast-drying alcohol in the list. Your hair
None No fast-drying alcohol in the list. Your hair
Formula completeness
out of 10
Complete for its job
out of 10
Covers the core
Who should choose this
  • Porous, damaged hairceramides are in the list
  • Very dry hairno fast-drying alcohol in the list
  • A wide range of haira middle-of-the-range weight
  • Porous, damaged hairceramides are in the list
  • Very dry hairno fast-drying alcohol in the list
  • A wide range of haira middle-of-the-range weight
Why you might skip it
  • Scents bother youthis product carries a scent
  • Curly-method routinesthese silicones need a detergent to remove
  • Vegan and cruelty-freeour record does not support both claims here
  • Scents bother youthis product carries a scent
  • Curly-method routinesthese silicones need a detergent to remove
  • Vegan and cruelty-freeour record does not support both claims here
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
Heat protectantcream
Heat protectant
Where to buy
Salons
—
Free of
  • sulfate-free
  • sulfate-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

IngredientDiscipline Kératine ThermiqueResistance Serum Therapiste Serum Strengthening Serum Heat Protectant
Water
Neutral
#1Leading
#2Leading
Dimethicone
Buildup
#3Leading
#4Supporting
Phenoxyethanol
Stabilizes
#6Below the 1% line
#8Below the 1% line
Amodimethicone
Buildup
#7Below the 1% line
#7Supporting
Hydroxypropyltrimonium Hydrolyzed Wheat Protein
Protein
#17Below the 1% line
#29Below the 1% line
Linalool
Fragrance
#19Below the 1% line
#14Below the 1% line
Alpha-Isomethyl Ionone
Fragrance
#21Below the 1% line
#32Below the 1% line
Citronellol
Fragrance
#23Below the 1% line
#17Below the 1% line
Geraniol
Fragrance
#22Below the 1% line
#20Below the 1% line

What only one of them carries

Discipline Kératine Thermique

Resistance Serum Therapiste Serum Strengthening Serum Heat Protectant

Full ingredient list — Discipline Kératine Thermique (25)
Full ingredient list — Resistance Serum Therapiste Serum Strengthening Serum Heat Protectant (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.

VerdictsDiscipline Kératine ThermiqueResistance Serum Therapiste Serum Strengthening Serum Heat Protectant
Supported
1
0
Partly supported
1
0
Stated by brand
4
0
Potential conflict
0
0

Discipline Kératine Thermique

  • Thermo-protection up to 180°CStated by brandOnly lab testing can show this.
  • Hair is strengthened, breakage is reducedPartly supportedSupports the surface, not a treatment.
  • Anti-frizz/anti-humidity actionStated by brandMay help, but not measurable here.
  • Shiny and perfect glazed-like finishSupportedReflects light for visible shine.
  • Facilitates blowdry & reduces styling timeStated by brandCan’t be confirmed from label.
  • Smoothes & tames hair fiberStated by brandCan’t be confirmed from label.

Resistance Serum Therapiste Serum Strengthening Serum Heat Protectant

No claims recorded for this product beyond the ones above.

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.

$9.02/oz vs $38.02/oz — Kerastase Resistance Serum Therapiste Serum Strengthening Serum Heat Protectant costs about 4.2× more per ounce than Kerastase Discipline Kératine Thermique.

$0.42/oz median $5.13/oz $76.00/oz $9.02/oz Discipline Kératine Thermi $38.02/oz Resistance Serum Therapist

Every mark sits on one distribution because these are compared against the same set: 223 heat protectants with a computable unit price.

Value readDiscipline Kératine ThermiqueResistance Serum Therapiste Serum Strengthening Serum Heat Protectant
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.

Discipline Kératine Thermique vs Heat Protectant Near Me Mongongo Oil Heat Protectant Spray ForMielle · 90% function matchResistance Serum Therapiste Serum Strengthening Serum Heat Protectant vs Acidic Bonding Concentrate Leave-In TreatmentRedken · 90% function matchDiscipline Kératine Thermique vs Mongongo Oil Thermal & Heat Protectant SprayMielle · 90% function matchResistance Serum Therapiste Serum Strengthening Serum Heat Protectant vs Discipline Fluidissime Thermique Heat Protecting SprayKerastase · 86% function matchDiscipline Kératine Thermique vs Bond Protein Repair Heat Protect Multi-Tasker SprayOGX · 88% function matchResistance Serum Therapiste Serum Strengthening Serum Heat Protectant vs Blow Dry StylerOdele · 86% function matchDiscipline Kératine Thermique vs Repair & Protect Bond Protein Repair 450F Heat Protectant SprayOGX · 88% function matchResistance Serum Therapiste Serum Strengthening Serum Heat Protectant vs Chroma Absolu Serum Chroma ThermiqueKerastase · 81% function match

Discipline Kératine Thermique · Resistance Serum Therapiste Serum Strengthening Serum Heat Protectant · All heat protectants 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.
  • 12 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.

Still unsure? Take your consultation or browse more products.

Your personalized hair plan

Tell us what’s going on with your hair, see what we understand, and get a plan built around it — with the reason behind every recommendation.

Free to start · $49.00 for your consultation and hair profile · No subscription · Nothing you must buy

Start your consultation