Universal leave-in designed to protect against heat and humidity for all sensitized or damaged color-treated hair
It avoids sulfate detergents, which are the usual cause of fast fade.
- Polyquaternium-37
- Tocopherol
- Quaternium-87
Less fade per wash.
Heat protectant / Lotion, heat-protecting
Scent:
The ingredient list declares fragrance. What it smells of is not stated, and we do not guess.
Manufacturer page: valley-beauty.com
Personal fit
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The rest of what your plan weighs on this product.
The consultation builds your hair profile, then reads every factor in this table against it — and tells you where this product fits, or what to use instead.
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Your avoid-list
Same job for less elsewhere
$9.58/oz at 5.01 oz — more than 80% of the 904 heat protectants , which mostly run $1.66–7.98/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.
The brand states a protection temperature — a label claim, not a measurement.
Middle of the range — noticeable on fine hair, light on coarse hair.
Conditioning agents sit high in the list — this is a detangling formula.
Water-insoluble silicones or waxes: a detergent wash is what removes them.
Humectants in the working part of the formula.
No fast-drying alcohol in the list.
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 |
|---|---|---|---|
| WaterAqua/Water/Eau | solvent | The base everything else is dissolved in | Neutral |
| Amodimethicone | silicone | Spreads heat across the strand | Buildup |
| PEG-40 Hydrogenated Castor Oil | solubilizer | Keeps oils dissolved in water | Stabilizes |
| Trideceth-5 | emulsifier | Keeps oil and water mixed | Stabilizes |
| Polyquaternium-37 | conditioning agent | Conditions and softens — this is what makes it comb through | Detangles |
| Phenoxyethanol | preservative | Keeps the product from spoiling | Stabilizes |
| Propylene Glycol Dicaprylate/Dicaprate | light ester | A light, silky feel | Softens |
| Glycerin | humectant | Adds a little water-binding | Moisturizes |
| Phenyl Trimethicone | silicone | A little heat-spreading smoothing | Buildup |
| Linalool | fragrance | The scent | Fragrance |
| Limonene | fragrance | The scent | Fragrance |
| Geraniol | 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 to stick where hair is damaged, so it smooths selectively instead of coating everything. It resists rinsing more than plain dimethicone.
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.
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 castor-oil derivative that dissolves fragrance and oils into water so the product stays clear and does not separate.
Listed in the first three ingredients, it is likely a structural part of this formula.
A fatty alcohol with ethylene oxide added. The number is how many units: low numbers sit on the oil side of an emulsion, high numbers dissolve in water.
Listed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
A thickening polymer that gives creams and curl products their bounce and helps them cling to the strand.
Listed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
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.
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 light, dry-feeling ester that spreads other ingredients and softens without a greasy finish.
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.
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.
An amino acid that holds water and carries a positive charge, so it is drawn to damaged spots on the strand.
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.
A high-refractive silicone used specifically for visible shine in serums and finishing 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.
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.
An acid used to set pH and, in scalp products, to loosen flakes.
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.
A humectant moves water in whichever direction the air allows: it holds moisture in humid conditions and can pull it back out of hair in very dry ones.
Vinegar acid, used in tiny amounts to bring the formula to an acidic pH so the cuticle lies flat.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
pH adjusters are how a formula is brought to a chosen acidity, and an acidic formula keeps the cuticle lying flatter than an alkaline one. Which way this one moves the pH depends on the formula, and the finished pH is not on the label.
A plant-derived conditioning agent used for slip and static control.
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.
The class that does the detangling in a conditioner. It deposits lubrication where the cuticle is worn.
Substantive by design. A routine with no detergent wash gives it nothing to leave with.
A large water-binding molecule that sits on the surface holding moisture.
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.
A humectant moves water in whichever direction the air allows: it holds moisture in humid conditions and can pull it back out of hair in very dry ones.
A fruit acid used to set an acidic pH; at higher levels it also loosens surface build-up.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
pH adjusters are how a formula is brought to a chosen acidity, and an acidic formula keeps the cuticle lying flatter than an alkaline one. Which way this one moves the pH depends on the formula, and the finished pH is not on the label.
A floral fragrance component listed separately as a recognised contact allergen.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
One of the 26 scent components the EU requires to be named individually above a threshold. It is named because it is a known contact allergen, not because it is unusual.
A small humectant and solvent that keeps formulas stable and helps active ingredients spread.
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 citrus-smelling fragrance component that EU rules require to be named separately because some people react to 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.
One of the 26 scent components the EU requires to be named individually above a threshold. It is named because it is a known contact allergen, not because it is unusual.
A rose-scented fragrance component, listed on its own because some people react to 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.
One of the 26 scent components the EU requires to be named individually above a threshold. It is named because it is a known contact allergen, not because it is unusual.
A soft floral fragrance component named separately as a recognised allergen.
It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
One of the 26 scent components the EU requires to be named individually above a threshold. It is named because it is a known contact allergen, not because it is unusual.
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 2026-08-23. Formulas change — check the package in your hand when an ingredient matters to you.
Price · 5.01 oz
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 heat protectant is built around, and 7 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, looking for heat protection and a protein-free formula
Not ideal for anyone sensitive to fragrance, curly-method routines, or vegan and cruelty-free shopping
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.
Universal leave-in designed to protect against heat and humidity for all sensitized or damaged color-treated hair
It avoids sulfate detergents, which are the usual cause of fast fade.
Less fade per wash.
Frizz control
Silicones or film formers smooth the cuticle, which is the usual mechanism.
Smoother strands, less frizz.
96% smoother and softer hair
A brand-run study. We report it as stated and do not repeat the number as fact.
—
Only the brand’s testing shows this.
A frizz-reducing leave-in that hydrates hair and shields it from external aggressors
Humectants or rich emollients sit in the first eight ingredients.
Helps hair feel hydrated.
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.
Protects color-treated hair during frequent high-heat blowouts
Kérastase official reviewerLightweight use detangles, controls frizz, and improves blowouts
Sephora France reviewersFine-hair users may find the serum heavy or sticky
Kérastase and Sephora reviewers