Thermal Protector
Our library captures this as a heat protectant, but thermal protection is measured in a lab, not read off a list.
- Dimethicone PEG-8 Meadowfoamate
- Polyquaternium-11
- Polyquaternium-10
Sold for hot tools; untestable here.
Leave-in / Everyday leave-in, medium-weight
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
Same job for less elsewhere
$6.12/oz at 4 oz — more than 78% of the 549 leave-ins , which mostly run $1.25–5.69/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.
Middle of the range — noticeable on fine hair, light on coarse hair.
Conditioning agents sit high in the list — this is a detangling formula.
Humectants near the top — water-binding is a headline mechanism here.
No oils or butters in the list.
Protein appears, low enough to be a supporting ingredient.
Sold as a heat protectant; no temperature is stated.
Water-insoluble silicones or waxes: a detergent wash is what removes them.
Fragrance sits in the first eight ingredients — a larger share of the formula.
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 |
|---|---|---|---|
| Water | solvent | The base everything else is dissolved in | Neutral |
| Dimethicone PEG-8 Meadowfoamate | silicone | Smooths the cuticle and adds shine | Buildup |
| Propanediol | humectant | Pulls water into the hair | Moisturizes |
| Fragrance | fragrance | The scent | Fragrance |
| Olive Oil PEG-8 Esters | light ester | A light, silky feel | Softens |
| Phenoxyethanol | preservative | Keeps the product from spoiling | Stabilizes |
| Polyquaternium-11 | film former | A supporting film former | Detangles |
| Polyquaternium-10 | conditioning agent | Adds slip, lower in the list | Detangles |
| Silicone Quaternium-22 | silicone | A little smoothing and shine | Buildup |
| Soy Amino Acids | amino acid | A trace of amino acids | Protein |
| Wheat Amino Acids | protein | A small amount of protein | Protein |
| Tetramethyl Acetyloctahydronaphthalenes | 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 silicone modified with meadowfoam oil, used for shine with a lighter feel.
Listed in the first three ingredients, it is likely a structural part of this formula.
A surface film slows how quickly humidity reaches the cortex, which is what limits swelling-driven frizz in damp air.
Lays a smooth film along the cuticle, which lowers combing friction and flattens the surface irregularities that read as frizz.
Dimethicone does not disperse in water. On a routine that skips detergent it stays on the hair and accumulates wash after wash.
A corn-derived humectant and solvent, often chosen as a lighter-feeling alternative to propylene glycol.
Listed in the first three ingredients, it is likely a structural part of this formula.
Light and water-binding rather than oily, so it hydrates without contributing weight.
A small water-binding solvent. It holds moisture and helps the rest of the formula spread evenly over the strand.
A humectant follows the air: it holds water in humid conditions and can give it up in very dry ones. Climate decides what it does more than the label does.
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.
Olive oil made water-dispersible by ethoxylation, used to soften a cleanser and reduce the stripped feeling.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
The most common modern preservative; it keeps the product free of bacteria and mould. It sits well below 1% of the formula.
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 styling and conditioning polymer that adds light hold and shine, common in mousses and setting sprays.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
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 cellulose-based conditioning polymer that leaves a thin, static-reducing film. Very common in shampoos as the ingredient that keeps them from stripping.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
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 conditioning silicone used for durable smoothing and 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 surface film slows how quickly humidity reaches the cortex, which is what limits swelling-driven frizz in damp air.
Amino-functional silicone carries a positive charge, so it binds where the cuticle is worn rather than coating evenly. Damaged areas get most of it.
Film formers are what hold a style: they dry into a connected film across the strands so the shape resists movement.
A light humectant and solvent that helps fragrance and extracts dissolve evenly.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
Light and water-binding rather than oily, so it hydrates without contributing weight.
A small water-binding solvent. It holds moisture and helps the rest of the formula spread evenly over the strand.
A humectant follows the air: it holds water in humid conditions and can give it up in very dry ones. Climate decides what it does more than the label does.
A mild coconut-derived co-cleanser that boosts foam and softens the effect of stronger detergents. It appears in most shampoos, gentle or not.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
Mild cleansing leaves more surface lubrication in place on hair that dries out quickly.
The mildest detergents are also the least complete: a routine that deposits films needs something stronger periodically.
Among the mildest detergents in use — it is what baby shampoos are built on — but it is almost always the second detergent in a formula. How much a wash strips is still decided by the primary detergent listed above it.
A small water-loving molecule that draws moisture into the hair and holds it there. It is the most common softening ingredient in conditioners and leave-ins.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
High-porosity hair loses water fast; a humectant holds some of it in place for longer than the wash itself would.
Binds water into the outer layers of the strand, and water is what makes dry hair flexible again rather than brittle.
Water moves both ways. Measured across concentrations, glycerin solutions give water up in some conditions and take it from the air in others. What it does for you depends on how much of it is there and on the air around it.
A conditioning agent that binds to hair and is also used to help shield it from sun exposure.
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 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.
Aloe gel, used for light moisture and slip. High in the list it also contributes a little natural hold.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
Gums thicken and set soft, which gives definition that bends rather than a rigid cast.
Hydration with no oil attached, so it adds very little weight even high on a list.
Aloe is mostly water carrying sugars that bind more of it, which is why it turns up as the base of moisture-first formulas.
An amino acid of the kind hair protein is built from. Small enough to sit inside the cuticle, and used for water binding rather than strength.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
Amino acids are the smallest protein fraction and bind water as well, so they add far less stiffness than a hydrolysed protein does.
A humectant follows the air: it holds water in humid conditions and can give it up in very dry ones. Climate decides what it does more than the label does.
The lightest option in the protein family, but still protein — worth watching if protein reliably stiffens your hair.
Wheat protein broken into amino acids, used for lightweight moisture binding.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
Amino acids are the smallest protein fraction and bind water as well, so they add far less stiffness than a hydrolysed protein does.
The lightest option in the protein family, but still protein — worth watching if protein reliably stiffens your hair.
One of the amino acids that make up hair protein, added for water binding.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
Amino acids are the smallest protein fraction and bind water as well, so they add far less stiffness than a hydrolysed protein does.
The lightest option in the protein family, but still protein — worth watching if protein reliably stiffens your hair.
An amino acid used in conditioning blends for moisture binding.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
Amino acids are the smallest protein fraction and bind water as well, so they add far less stiffness than a hydrolysed protein does.
The lightest option in the protein family, but still protein — worth watching if protein reliably stiffens your hair.
A salt form of the amino acid arginine, used for moisture binding and to adjust pH.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
Amino acids are the smallest protein fraction and bind water as well, so they add far less stiffness than a hydrolysed protein does.
A humectant follows the air: it holds water in humid conditions and can give it up in very dry ones. Climate decides what it does more than the label does.
The lightest option in the protein family, but still protein — worth watching if protein reliably stiffens your hair.
Used to bring the product to a slightly acidic pH, which helps the cuticle lie flat. It is almost always near the end of the list.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
Holds hard-water minerals in solution so they rinse away instead of depositing on the hair.
The acid side of pH adjustment, and the reason it matters is measured: alkaline formulas raise the fibre's surface negative charge, increase friction between strands and lift the scales, while lower-pH ones do the reverse.
Where a warm cast comes from water minerals rather than from the hair itself, holding those metals in solution is what removes it.
A strong base used in trace amounts to raise pH; fully neutralised in the finished product.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
The alkali half of a pH-adjusting pair, used in small amounts to bring a formula up to its target rather than to make it alkaline. Alkaline conditions raise the fibre's surface charge and lift the scales — but the finished pH is not on the label.
A synthetic musk or woody-amber note used as a fragrance base.
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.
A lilac-like fragrance component found naturally in several essential oils.
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 2026-08-23. Formulas change — check the package in your hand when an ingredient matters to you.
Price · 4 oz
Priced above the products that do the same job. Stores sell it above the $5 line; products that do this job typically go for about $7 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
The formula carries what a leave-in is built around, and 5 products we score as close matches cost at least a quarter less per ounce. The difference is buying the label, not a different formula.
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 blow-dry or flat-iron who want heat protection and real detangling slip
Less suited to anyone sensitive to fragrance, curly-method routines, or very dry or very humid climates
Paul Mitchell Kids Taming Spray, for similar results at a lower price
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.
Thermal Protector
Our library captures this as a heat protectant, but thermal protection is measured in a lab, not read off a list.
Sold for hot tools; untestable here.
Helps prevent split ends
Protein or ceramides are present, but low enough that this reads as support, not treatment.
Supports the surface, not a treatment.
Restores shine
The formula carries a recognised shine system — silicone, oil, or light ester.
Reflects light for visible shine.
Nourishes hair
Humectants or rich emollients sit in the first eight ingredients.
Helps hair feel hydrated.
Detangles instantly
Conditioning agents that reduce combing force sit high in the list.
Easier detangling, less breakage.
Color safe
It avoids sulfate detergents, which are the usual cause of fast fade.
Less fade per wash.
Helps reduce frizz
Silicones or film formers smooth the cuticle, which is the usual mechanism.
Smoother strands, less frizz.
Helps reduce breakage
Protein or ceramides are present, but low enough that this reads as support, not treatment.
Supports the surface, not a treatment.
Enhances natural body
A mid-weight formula: it will not flatten fine hair, but lift is not its main job.
Neutral on lift.
Lightweight
A mid-weight formula: light on coarse hair, noticeable on fine hair.
Depends how fine your hair is.
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.
Lightweight/weightless formula that detangles instantly without greasiness or buildup
Delivers a dramatic, near-instant transformation ('IS a miracle', hair transformed in one use)
Reduces frizz and adds body/shine while easing styling