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Side by side

It's a 10 Coily Miracle Hydrating Shampoo vs Kerastase Premiere Bain Décalcifiant Réparateur

96% function match · 12 of the 13 functions we compared match Formula overlap 80%. It's a 10 Coily Miracle Hydrating Shampoo and Kerastase Premiere Bain Décalcifiant Réparateur 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.

  • Coily Miracle Hydrating Shampoo — colour-treated hair
  • Premiere Bain Décalcifiant Réparateur — colour-treated 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
It's a 10 Coily Miracle Hydrating Shampoo — 10 oz container It's a 10

Coily Miracle Hydrating Shampoo

  • Shampoo
  • Salon
  • Sulfate-free
  • Lightweight
Kerastase

Premiere Bain Décalcifiant Réparateur

  • Shampoo
  • Salon
  • Sulfate-free
  • Moisture-rich
Price, size & price per ounce
$28–29 10 oz · $2.85/oz
$40 8.45 oz
Value / price positioning
Upper-mid price for a shampoo $$$$$ Salon tier · costs more than 73% of the 817 shampoos we’ve priced
Not enough priced shampoos to place it Salon tier
Best for hair types
Wavy–Coily The brand’s own claims name curly or textured hair. 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
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
Prominent Fragrance sits in the first eight ingredients — a larger share of the formula. Your hair
Prominent Fragrance sits in the first eight ingredients — a larger share of the formula. 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
Expected lather Same
Moderate An ordinary shampoo lather. Your hair
Moderate An ordinary shampoo lather. 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
  • Colour-treated hairthat fades faster in a sulfate wash
  • Fast-oiling scalpsthat need a real reset wash
  • Fine hairthat flattens under most products
  • Very dry hairno fast-drying alcohol in the list
  • Colour-treated hairthat fades faster in a sulfate wash
  • Fast-oiling scalpsthat need a real reset wash
  • Dry, thirsty hairhumectants and emollients both sit up front
  • Very dry hairno fast-drying alcohol in the list
Why you might skip it
  • Scents bother youthis product carries a scent
  • Curly-method routinesthese silicones need a detergent to remove
  • Dry or damaged haira strong detergent system strips as it cleans
  • Scents bother youthis product carries a scent
  • Curly-method routinesthese silicones need a detergent to remove
  • Dry or damaged haira strong detergent system strips as it cleans
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
Shampoocream
Where to buy
Brand website · Grocery / mass · Specialty beauty
Salons · Brand website
Free of
  • sulfate-free
  • sulfate-free
Cruelty-free
Cruelty-free · brand states
Cruelty-free · label states
Scent
Scented, not described
Scented, not described
How often
every wash
every wash

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

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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

IngredientCoily Miracle Hydrating ShampooPremiere Bain Décalcifiant Réparateur
Water
Neutral
#1Leading
#1Leading
Disodium Laureth Sulfosuccinate
Cleanses
#2Leading
#3Leading
Sodium Cocoyl Isethionate
Cleanses
#3Leading
#2Leading
Sodium Lauryl Sulfoacetate
Cleanses
#4Supporting
#5Supporting
Cocamidopropyl Betaine
Cleanses
#6Supporting
#11Below the 1% line
Glycerin
Moisturizes
#7Supporting
#7Supporting
Fragrance
Fragrance
#8Below the 1% line
#8Below the 1% line
Amodimethicone
Buildup
#13Below the 1% line
#15Below the 1% line
Glycol Distearate
Softens
#11Below the 1% line
#4Supporting

What only one of them carries

Full ingredient list — Coily Miracle Hydrating Shampoo (40)
Full ingredient list — Premiere Bain Décalcifiant Réparateur (37)

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.

VerdictsCoily Miracle Hydrating ShampooPremiere Bain Décalcifiant Réparateur
Supported
5
2
Partly supported
1
1
Stated by brand
0
1
Potential conflict
0
0

Coily Miracle Hydrating Shampoo

  • Defines curlsSupportedHolds a clump together.
  • Removes buildupSupportedResets a coated scalp.
  • DefrizzesSupportedSmoother strands, less frizz.
  • Reduces split endsPartly supportedSupports the surface, not a treatment.
  • Moisturizes scalpSupportedHelps hair feel hydrated.
  • Safe for color-treated hairSupportedLess fade per wash.

Premiere Bain Décalcifiant Réparateur

  • Removes calcium buildup and hard water residueSupportedResets a coated scalp.
  • Repairs weakened hair and reduces breakagePartly supportedSupports the surface, not a treatment.
  • Restores softness, smoothness, and shineSupportedReflects light for visible shine.
  • Suitable for all hair types, including damaged or over-processed hairStated by brandSee the fit panel instead.

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.

Coily Miracle Hydrating Shampoo

Curly and coily-haired reviewers consistently say this shampoo hydrates without weighing curls down, which they contrast with other moisturizing shampoos.

curly and coily hair reviewers on the Ulta review widget

A minority of reviewers found the formula too thin and reported a filmy residue or increased frizz once dry.

dissatisfied reviewers on the Ulta review widget

A recurring complaint is that the pump/dispenser is hard to use and some reviewers had to transfer the product to another bottle.

reviewers frustrated with the packaging on the Ulta review widget

Premiere Bain Décalcifiant Réparateur

No review themes researched for this product yet.

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.

Coily Miracle Hydrating Shampoo

Against 817 shampoos with a computable unit price.

Value readCoily Miracle Hydrating ShampooPremiere Bain Décalcifiant Réparateur
Label
Upper-mid price for a shampooSits in the middle of the range for shampoos per ounce.
Not enough priced shampoos to place itWe need more comparable products before we can place this.

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.

Coily Miracle Hydrating Shampoo · Premiere Bain Décalcifiant Réparateur · 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.
  • 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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