Side by side
It's a 10 Coily Miracle Leave-In vs It's a 10 Miracle Leave-In Plus Keratin
86% function match · 8 of the 10 functions we compared match Formula overlap 73%. It's a 10 Coily Miracle Leave-In and It's a 10 Miracle Leave-In Plus Keratin share 4 ingredients among each other's most prominent.
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 Leave-In — heat styling
- Miracle Leave-In Plus Keratin — heat styling
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”.
- Heat stylingthe brand positions this as a heat protectant
- Maximum slipfor hair that tangles the moment it is wet
- Dry, thirsty hairhumectants and emollients both sit up front
- Curl definitionfilm formers hold a clump together
- Heat stylingthe brand positions this as a heat protectant
- Maximum slipfor hair that tangles the moment it is wet
- Dry, thirsty hairhumectants and emollients both sit up front
- Curl definitionfilm formers hold a clump together
- Scents bother youthis product carries a scent
- Curly-method routinesthese silicones need a detergent to remove
- Very dry or damaged hairit contains fast-drying alcohol
- Scents bother youthis product carries a scent
- Curly-method routinesthese silicones need a detergent to remove
- Dry or very humid airwhere heavy humectants work against you
More facts about each one
- sulfate-free
- sulfate-free
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.
$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
What only one of them carries
Coily Miracle Leave-In
Miracle Leave-In Plus Keratin
Full ingredient list — Coily Miracle Leave-In (28)
-
1
Water
- solvent
-
2
Propylene Glycol
- humectant
- solvent
-
3
Behentrimonium Chloride
- conditioning agent
- cleanser
-
4
Cetearyl Alcohol
- fatty alcohol
- emollient
- thickener
-
5
Stearyl Alcohol
- fatty alcohol
- emollient
- thickener
- Below about this point, order stops being meaningful — these are typically used at 1% or less.
-
6
Fragrance
- fragrance
- declared fragrance
-
7
Quaternium-80
- silicone
- conditioning agent
- film former
-
8
Phenoxyethanol
- preservative
-
9
Isopropyl Alcohol
- drying alcohol
- solvent
-
10
Ethylhexylglycerin
- preservative
- emollient
-
11
Panthenol
- humectant
- conditioning agent
- vitamin
-
12
Pisum Sativum (Pea) Peptide
- protein
-
13
Cocos Nucifera (Coconut) Oil
- oil
- emollient
-
14
Silicone Quaternium-22
- silicone
- conditioning agent
- film former
-
15
Ppg-3 Myristyl Ether
- emulsifier
-
16
Hydrolyzed Rice Protein
- film former
- protein
- hydrolysed protein
-
17
Theobroma Cacao (Cocoa) Seed Butter
- butter
- emollient
- sealant
-
18
Butyrospermum Parkii (Shea) Butter
- butter
- emollient
- sealant
-
19
Persea Gratissima (Avocado) Oil
- oil
- emollient
-
20
Gardenia Taitensis Flower Extract
- botanical extract
-
21
Leuconostoc/Radish Root Ferment Filtrate
- preservative
-
22
Benzyl Alcohol
- preservative
- solvent
-
23
Tocopherol
- antioxidant
- vitamin
-
24
Potassium Sorbate
- preservative
-
25
Sodium Benzoate
- preservative
-
26
Citric Acid
- pH adjuster
- hard-water chelator
-
27
Sodium Hydroxide
- pH adjuster
-
28
Anise Alcohol
- fragrance
- named fragrance allergen
Full ingredient list — Miracle Leave-In Plus Keratin (25)
-
1
Water
- solvent
-
2
Propylene Glycol
- humectant
- solvent
-
3
Cetearyl Alcohol
- fatty alcohol
- emollient
- thickener
-
4
Behentrimonium Chloride
- conditioning agent
- cleanser
-
5
Diheptyl Succinate
- light ester
- emollient
- Below about this point, order stops being meaningful — these are typically used at 1% or less.
-
6
Phenoxyethanol
- preservative
-
7
Quaternium-80
- silicone
- conditioning agent
- film former
-
8
Fragrance
- fragrance
- declared fragrance
-
9
Panthenol
- humectant
- conditioning agent
- vitamin
-
10
Capryloyl Glycerin/Sebacic Acid Copolymer
- film former
- emollient
-
11
Aloe Barbadensis Leaf Juice
- humectant
- botanical extract
- gum
-
12
Sodium Hydroxide
- pH adjuster
-
13
Glycerin
- humectant
-
14
Hydrolyzed Keratin
- film former
- protein
- hydrolysed protein
-
15
Keratin Amino Acids
- protein
- amino acid
-
16
Helianthus Annuus (Sunflower) Seed Extract
- botanical extract
- antioxidant
-
17
Silk Amino Acids
- protein
- amino acid
-
18
Camellia Sinensis (Green Tea) Leaf Extract
- botanical extract
- antioxidant
-
19
Citric Acid
- pH adjuster
- hard-water chelator
-
20
Benzyl Benzoate
- fragrance
- named fragrance allergen
-
21
Benzyl Salicylate
- fragrance
- named fragrance allergen
-
22
Hexamethylindanopyran
- fragrance
-
23
Hydroxycitronellal
- fragrance
- named fragrance allergen
-
24
Linalool
- fragrance
- named fragrance allergen
-
25
Tetramethyl Acetyloctahydronaphthalenes
- fragrance
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.
Coily Miracle Leave-In
Enhances natural curls
Stated by brandCan’t be confirmed from label.Restores shine
SupportedReflects light for visible shine.Defines curls
SupportedHolds a clump together.Defrizzes and tames flyaways
Stated by brandMay help, but not a primary focus.Creates silkiness
Stated by brandCan’t be confirmed from label.Nourishes hair
SupportedHelps hair feel hydrated.Lightweight formula
Partly supportedDepends how fine your hair is.Helps reduce breakage
Partly supportedSupports the surface, not a treatment.Provides thermal protection
Partly supportedSold for hot tools; untestable here.Instant Detangling
SupportedEasier detangling, less breakage.
Miracle Leave-In Plus Keratin
Your favorite Leave-In is now enriched with the power of keratin! Smooth and sleek are all simpler than ever thanks to the essential Leave-In and effortless spritz-on application
SupportedSmoother strands, less frizz.Thermal protector
Partly supportedSold for hot tools; untestable here.Detangles
SupportedEasier detangling, less breakage.
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 Leave-In
General strong satisfaction ('So glad I found this!'), high 4.6-4.9/5 rating with most reviewers recommending to friends
Protects hair, detangles, and brightens/enhances hair appearance; drives repeat purchase during promotions
Long-time repeat users rely on it for detangling and easier combing of coily hair
Miracle Leave-In Plus Keratin
Produces shiny, silky results across different hair types, cited as highly recommended
Leaves hair smooth and soft with reduced frizz
Consistently high satisfaction with repeat purchases (4.9/5 across 713 reviews, 97% recommend)
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.
$6.50/oz vs $8.00/oz — It's a 10 Miracle Leave-In Plus Keratin costs about 1.2× more per ounce than It's a 10 Coily Miracle Leave-In.
Every mark sits on one distribution because these are compared against the same set: 553 leave-ins with a computable unit price.
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 Leave-In · Miracle Leave-In Plus Keratin · All leave-ins 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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