soft curl definition
Film formers or natural gums are present, which is what holds a clump together.
- Polyquaternium-37
- Hydrolyzed Rice Protein
- VP/Dimethylaminoethylmethacrylate Copolymer
Holds a clump together.
Leave-in / Rich leave-in, heavy
Scent:
The ingredient list declares fragrance. What it smells of is not stated, and we do not guess.
Manufacturer page: itsa10haircare.com
Personal fit
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The rest of what your plan weighs on this product.
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Your avoid-list
Priced above most leave-ins
$5.60/oz at 5 oz — more than 76% of the 477 leave-ins , which mostly run $1.17–5.50/oz.
Great for
Maybe skip if
What the formula actually does
Each row says where it comes from: F means we derived it from this product’s own ingredient list, S means it is a claim the brand makes that the formula neither confirms nor contradicts.
Heavy butters and waxes in the first eight ingredients.
Conditioning agents sit high in the list — this is a detangling formula.
Humectants near the top — water-binding is a headline mechanism here.
Butters near the top: a heavy, softening formula.
Nothing here needs a detergent wash to remove.
Fragrance is listed; it sits below the working ingredients.
Ingredients that matter
The workhorse ingredients plus anything lower down that changes a decision. These chips name what an ingredient does — they are not safety scores, and no ingredient here is rated good or bad on its own.
| Ingredient | What it does | Why it matters | Chip |
|---|---|---|---|
| WaterWater (Aqua, Eau) | solvent | The base everything else is dissolved in | Neutral |
| Polyquaternium-37 | conditioning agent | Conditions and softens — this is what makes it comb through | Detangles |
| Propylene Glycol Dicaprylate Dicaprate | — | — | Neutral |
| Panthenol | humectant | Pulls water into the hair | Detangles |
| Butyrospermum Parkii (Shea) Butter | butter | Heavy softening — this is what makes it rich | Heavy |
| Persea Gratissima (Avocado) Oil | oil | Coats and softens the strand | Softens |
| Theobroma Cacao (Cocoa) Seed Butter | butter | Heavy softening — this is what makes it rich | Heavy |
| Cocos Nucifera (Coconut) Oil | oil | Coats and softens the strand | Softens |
| Hydrolyzed Rice Protein | film former | A supporting film former | Protein |
| Pisum Sativum (Pea) Peptide | protein | A small amount of protein | Protein |
| FragranceFragrance (Parfum) | fragrance | The scent | Fragrance |
US labelling rules put ingredients above 1% in descending order of amount; below 1% they may be listed in any order. Annotations keep three readings separate: the ingredient's general function, its role in this product type, and what its position can support.
The base of almost every rinse-off and cream hair product. It carries everything else and is normally the first ingredient on the label.
Listed in the first three ingredients, it is likely a structural part of this formula.
A thickening polymer that gives creams and curl products their bounce and helps them cling to the strand.
Listed in the first three ingredients, it is likely a structural part of this formula.
Cationic polymers hold a curl loosely and stay soft, which is why they turn up in definition products rather than firm-hold ones.
A cationic polymer stays on the hair through rinsing, which is what keeps static and combing friction down after the wash.
Film formers are what hold a style: they dry into a connected film across the strands so the shape resists movement.
Provitamin B5. It draws in water and penetrates the strand a little, which is why it is the standard ingredient for softness and shine claims.
Listed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
It hydrates without adding oil or a film, which is the combination fine hair usually needs.
Deposits a lubricating layer that makes combing easier, which is most of what stops mechanical damage adding to frizz.
A humectant that also penetrates the cuticle, so it holds water inside the strand rather than only on the surface.
A rich, solid plant butter used for heavy conditioning on coarse or dry hair. High in the list it makes a product decidedly heavy.
Listed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
Coarse, porous hair loses water quickly and can carry the weight; a butter slows that loss more than a thin oil does.
Emollients fill and smooth the surface of the strand, which lowers the friction that lifts the cuticle and reads as roughness.
A solid fat melts onto the strand at body temperature and stays there, which is the heaviest surface moisture-holding a formula can offer.
A rich oil used in masks and heavier creams for softness on coarse or dry hair.
Listed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
Coats the surface and slows water leaving the strand, which is usually what coarse hair that dries out fast is missing.
A thin oil layer lowers friction between strands and flattens the raised cuticle that scatters light and catches on its neighbours.
Near the top of a list an oil is weight before it is anything else, and fine hair shows that first at the roots.
A firm plant butter used for sealing and hold in heavier styling creams.
Listed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
Coarse, porous hair loses water quickly and can carry the weight; a butter slows that loss more than a thin oil does.
Emollients fill and smooth the surface of the strand, which lowers the friction that lifts the cuticle and reads as roughness.
A solid fat melts onto the strand at body temperature and stays there, which is the heaviest surface moisture-holding a formula can offer.
One of the few oils small enough to move into the strand, which is why it is used for pre-wash treatments. It can feel heavy or stiff on protein-sensitive hair.
Listed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
Because it penetrates rather than sits on top, it works on hair that loses water through a worn cuticle instead of only slowing evaporation from the surface the way a non-penetrating oil does.
A thin oil layer lowers friction between strands and flattens the raised cuticle that scatters light and catches on its neighbours.
The exception to the class read: lauric acid is small and linear enough to enter the shaft rather than only coat it, and in comparison testing coconut oil was the one that reduced protein loss from washing on both undamaged and damaged hair.
A light plant protein that adds body and shine, popular in volume products.
Lower in the ordered portion of the list, it is more likely playing a supporting role than defining the formula.
Filling surface gaps evens out the cuticle, which is part of what makes damaged hair comb and reflect light more like undamaged hair.
Film formers are what hold a style: they dry into a connected film across the strands so the shape resists movement.
Hydrolysed fragments are small enough to sit in the gaps of a worn cuticle for a wash or two, temporarily restoring stiffness and cutting breakage in combing.
A conditioning agent that binds to hair and is also used to help shield it from sun exposure.
Lower in the ordered portion of the list, it is more likely playing a supporting role than defining the formula.
A cationic conditioning agent: it binds to the damaged, negatively charged parts of the cuticle and lowers combing friction there.
Sunlight oxidises hair pigment, and on gray, silver or lightened hair that shows up as yellowing. A UV filter on the label absorbs some of the light that drives it.
The class that does the detangling in a conditioner. It deposits lubrication where the cuticle is worn.
A hold polymer with a conditioning charge, used for a soft set that rinses out.
Lower in the ordered portion of the list, it is more likely playing a supporting role than defining the formula.
A set polymer film is a physical barrier to humidity, so a style keeps its shape longer in damp conditions.
Synthetic film formers dry into a continuous film, which is what holds a shape against movement and against humid air.
Some acrylate copolymers rinse with water and some need a detergent; the label alone does not say which one a formula used.
A branched hydrocarbon of the stated chain length. It spreads other ingredients thinly and evaporates, leaving the hair without added weight.
Lower in the ordered portion of the list, it is more likely playing a supporting role than defining the formula.
Emollients fill and smooth the surface of the strand, which lowers the friction that lifts the cuticle and reads as roughness.
A dry-feeling ester used for a silky, non-greasy finish - a common silicone substitute.
Lower in the ordered portion of the list, it is more likely playing a supporting role than defining the formula.
A light emollient: it softens the surface with noticeably less weight than an oil or a butter.
Spreads thin and lowers friction between strands without the heaviness of a fixed oil.
A hold polymer that sets with some flexibility and washes out with water.
Lower in the ordered portion of the list, it is more likely playing a supporting role than defining the formula.
A set polymer film is a physical barrier to humidity, so a style keeps its shape longer in damp conditions.
Synthetic film formers dry into a continuous film, which is what holds a shape against movement and against humid air.
Some acrylate copolymers rinse with water and some need a detergent; the label alone does not say which one a formula used.
A styling and conditioning polymer that adds light hold and shine, common in mousses and setting sprays.
Lower in the ordered portion of the list, it is more likely playing a supporting role than defining the formula.
Cationic polymers hold a curl loosely and stay soft, which is why they turn up in definition products rather than firm-hold ones.
A cationic polymer stays on the hair through rinsing, which is what keeps static and combing friction down after the wash.
Film formers are what hold a style: they dry into a connected film across the strands so the shape resists movement.
A branched hydrocarbon of the stated chain length. It spreads other ingredients thinly and evaporates, leaving the hair without added weight.
Lower in the ordered portion of the list, it is more likely playing a supporting role than defining the formula.
Emollients fill and smooth the surface of the strand, which lowers the friction that lifts the cuticle and reads as roughness.
A preservative booster that also adds a little softness. Almost always paired with phenoxyethanol.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
Emollients fill and smooth the surface of the strand, which lowers the friction that lifts the cuticle and reads as roughness.
A short-chain pea protein used for strength and body claims in vegan formulas.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
Unhydrolysed protein is too large to enter the strand. It sits on the surface, which is a coating effect rather than internal reinforcement.
A light olive-derived ester used as a plant alternative to silicone slip.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
A light emollient: it softens the surface with noticeably less weight than an oil or a butter.
Spreads thin and lowers friction between strands without the heaviness of a fixed oil.
The fully hydrogenated form of squalene, now made from olive or sugarcane rather than shark liver. Hydrogenation is what makes it so slow to oxidise; it spreads very lightly and absorbs without a greasy film.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
Deposits a lubricating layer that makes combing easier, which is most of what stops mechanical damage adding to frizz.
An undisclosed blend of scent ingredients. Regulations let it stay unlisted, so a fragrance-free product is the only way to be certain what is not in it.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
Declared fragrance. On a fragrance-sensitive routine this is the line that decides it, wherever it sits on the label.
Ingredient list captured 2026-09-14. Formulas change — check the package in your hand when an ingredient matters to you.
Price · 5 oz
Priced above the products that do the same job. Stores sell it above the $2 line; products that do this job typically go for about $6 at this size.
Sorted by price per ounce. Dated observations from our research, not live prices. Direct store pages, no affiliate links. We don’t sell this product.
Formula
Above the range for leave-ins per ounce for a complete formula, with no close, lower-priced match in our library.
The formula score is completeness for the job: the share of the systems this product type is normally built around that we can find in this list, weighted. It is not efficacy, not quality, and it never compares across product types.
Does the same job, for less
Same derived functions — what it cleans, conditions, coats or holds — at a lower cost per ounce. Scent, texture and where you buy it can still differ.
See more alternatives in the product library
These are functional neighbours, not personal recommendations — they are close on formula, not chosen for anyone. Get the one that fits your hair, routine, and budget

Final decision
People who want maximum slip, looking for real detangling slip and moisture that stays in
Not ideal for anyone sensitive to fragrance, oily scalps and fine hair, or people shopping on a budget
We do not sell products or take placement fees. This page states what the formula and the prices show; the consultation is what matches it to a person.
Claims check
Claims are quoted from the brand. We only mark one supported, partly supported, or conflicting when the ingredient list actually speaks to it; everything else stays "stated by the brand", which is not a criticism — most claims simply cannot be read off a label.
soft curl definition
Film formers or natural gums are present, which is what holds a clump together.
Holds a clump together.
nourishing formula
Humectants or rich emollients sit in the first eight ingredients.
Helps hair feel hydrated.
layerable
This is a marketing claim; an ingredient list cannot speak to it.
—
Can’t be confirmed from label.
defrizzes
Silicones or film formers smooth the cuticle, which is the usual mechanism.
Smoother strands, less frizz.
adds shine
The formula carries a recognised shine system — silicone, oil, or light ester.
Reflects light for visible shine.
detangles
Conditioning agents that reduce combing force sit high in the list.
Easier detangling, less breakage.
helps reduce split ends
Protein or ceramides are present, but low enough that this reads as support, not treatment.
Supports the surface, not a treatment.
creates silky feel
Not measurable from ingredients; depends on personal preference.
—
Subjective feel varies by hair.
thermal protectant
Heat protection is a performance claim; an ingredient list cannot confirm it.
Only lab testing can show this.
color-safe
The detergent system is not recorded, so fade risk cannot be read.
Can’t be confirmed from label.
We look at the first 10–15 ingredients and what they do in a formula — not marketing. If the list doesn't speak to a claim, we don't assume.
Reviewers
Recurring themes our researchers wrote in their own words from sourced reviews. We do not store or scrape star ratings.
A repeat buyer with naturally wavy, dry, frizzy hair says it is one of the few products that smooths hair without making it look oily or feel weighed down
a repeat customer with naturally wavy hair prone to dryness and frizz, especially in winterSeveral reviewers with wavy hair say a small amount adds definition without leaving hair sticky, crunchy, or heavy
customers with wavy hair using it as a styling creamOne reviewer with 4c coily hair found it works better as a dry-hair detangler and refresher than as a wet leave-in styling cream
a customer with 4c coily hair testing it in multiple applicationsReviewers with very curly or frizzy dry hair say the product dries somewhat crunchy and needs scrunching or extra product to soften the hold
customers with very curly, frizzy, or dry hair using it for hold and definition