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Kenra

Color Maintenance Thermal Spray 11

Heat protectant / Lotion, heat-protecting

  • Heat protectant
  • spray
  • Sulfate-free
  • Protein-free
  • Cruelty-free · PETA-listed
Size8 fl ozmost listed · 2 sizes
Price$21 Good valueseen at one store · 8 oz · from $1.51/oz in the 11.8 oz
Price / oz$2.63/ozat 8 oz
Where to buy3 stores · 2 sizes

Scent:

Notes: fresh.

Manufacturer page: kenraprofessional.com

Personal fit

Is this right for you?

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Priced with its peers

$2.63/oz at 8 oz — less than 71% of the 223 heat protectants , which mostly run $2.25–7.40/oz.

Price and stores

Great for

Heat stylingthe brand states protection to 450°F
Protein-sensitive hairthat stiffens when protein is added
A wide range of haira middle-of-the-range weight

Maybe skip if

this product carries a scent
Curly-method routinesthese silicones need a detergent to remove
Very dry or damaged hairit contains fast-drying alcohol
Aerosol avoidancethis is a pressurised can
Tight budgetsit sits in the upper price tiers
Picking it up locallywe have it recorded in one channel only

How much heat protection you need depends on how often and how hot you style — that is what the consultation works out.

What the formula actually does

Read from the label, not the marketing

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.

Heat protection Stated to 450°F

The brand states a protection temperature — a label claim, not a measurement.

Weight on the hair Medium

Middle of the range — noticeable on fine hair, light on coarse hair.

Slip and detangling Some

Some slip, mostly from esters or silicones rather than conditioners.

Needs detergent to remove Yes

Water-insoluble silicones or waxes: a detergent wash is what removes them.

Water-binding (humectants) None found

No humectants found — nothing here pulls water into the hair.

Fast-drying alcohol High in the list

Fast-drying alcohol in the first three ingredients.

Fragrance Prominent

Fragrance sits in the first eight ingredients — a larger share of the formula.

from the formula stated by the brand reported by reviewers Scale: 1 dot low · 5 dots high, within this product type.

Ingredients that matter

The ingredients that change a decision

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.

IngredientWhat it doesWhy it mattersChip
Alcohol Denat.Alcohol Denat drying alcohol Speeds drying — and can read dry on the hair Drying
Hydrofluorocarbon 152a propellant Pushes the product out of the can Neutral
Octylacrylamide/Acrylates/Butylaminoethyl Methacrylate Copolymer film former Lays down the film that holds a shape Holds
Vinyl Caprolactam/VP/Dimethylaminoethyl Methacrylate Copolymer film former Lays down the film that holds a shape Holds
WaterWater/Aqua/Eau solvent The base everything else is dissolved in Neutral
Aminomethyl Propanol pH adjuster Fine-tunes the pH pH balancer
Phenyl Trimethicone silicone A little heat-spreading smoothing Buildup
FragranceFragrance (Parfum) fragrance The scent Fragrance
Hydroxycitronellal fragrance The scent Fragrance
Alpha-Isomethyl Ionone fragrance The scent Fragrance
Linalool fragrance The scent Fragrance
Limonene fragrance The scent Fragrance
What the list leaves out, and what it carriesNo sulfates. Protein-free: this is built for moisture rather than for strengthening. Contains fragrance. The silicones here need a detergent wash to come off.
Full ingredient list (17)

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.

  • 1 Alcohol Denat. · Alcohol Denat
    General function

    Fast-drying alcohol used to make sprays set quickly. In leave-on products it can leave hair feeling dry, especially in high position on the list.

    Leading ingredient

    Listed in the first three ingredients, it is likely a structural part of this formula.

    May suitFine or easily flattened hair

    Evaporates on contact, which is how a spray sets almost instantly and leaves no weight behind it.

    May not suitDry, coarse, or high-porosity hair

    Porous hair gives water up easily as it is; a fast-evaporating solvent high on the list accelerates that.

    May not suitVery dry or highly damaged hair

    It evaporates quickly and takes some water with it. On hair already short of moisture, a formula built on a lot of it can finish drier than it started.

    PubChem
    • drying alcohol
    • solvent
  • 2 Hydrofluorocarbon 152a
    General function

    A non-flammable aerosol propellant used in dry shampoos and finishing sprays.

    Leading ingredient

    Listed in the first three ingredients, it is likely a structural part of this formula.

    PubChem
    • propellant
  • 3 Octylacrylamide/Acrylates/Butylaminoethyl Methacrylate Copolymer
    General function

    A firm hold polymer used in hairsprays and gels. It holds well in humidity and brushes out.

    Leading ingredient

    Listed in the first three ingredients, it is likely a structural part of this formula.

    May suitClimate-sensitive or frizz-prone hair

    A set polymer film is a physical barrier to humidity, so a style keeps its shape longer in damp conditions.

    May suitMaximum-hold styling

    Synthetic film formers dry into a continuous film, which is what holds a shape against movement and against humid air.

    DependsBuild-up-sensitive routines

    Some acrylate copolymers rinse with water and some need a detergent; the label alone does not say which one a formula used.

    • film former
    • polymer
  • 4 Vinyl Caprolactam/VP/Dimethylaminoethyl Methacrylate Copolymer
    General function

    A hold polymer that sets with flexibility and washes out with water.

    Supporting ingredient

    Listed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.

    May suitClimate-sensitive or frizz-prone hair

    A set polymer film is a physical barrier to humidity, so a style keeps its shape longer in damp conditions.

    May suitMaximum-hold styling

    Synthetic film formers dry into a continuous film, which is what holds a shape against movement and against humid air.

    DependsBuild-up-sensitive routines

    Some acrylate copolymers rinse with water and some need a detergent; the label alone does not say which one a formula used.

    • film former
    • polymer
  • 5 Water · Water/Aqua/Eau
    General function

    The base of almost every rinse-off and cream hair product. It carries everything else and is normally the first ingredient on the label.

    Supporting ingredient

    Listed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.

    • solvent
  • Below about this point, order stops being meaningful — these are typically used at 1% or less.
  • 6 Aminomethyl Propanol
    General function

    A base used in trace amounts to neutralise acidic hold polymers so they thicken and set properly.

    Estimated lower-concentration zone

    It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.

    DependsFrizz-prone, damaged, or high-friction hair

    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.

    PubChem
    • pH adjuster
  • 7 Phenyl Trimethicone
    General function

    A high-refractive silicone used specifically for visible shine in serums and finishing oils.

    Estimated lower-concentration zone

    It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.

    May suitClimate-sensitive or frizz-prone hair

    A surface film slows how quickly humidity reaches the cortex, which is what limits swelling-driven frizz in damp air.

    May suitFrizz-prone, damaged, or high-friction hair

    Lays a smooth film along the cuticle, which lowers combing friction and flattens the surface irregularities that read as frizz.

    • silicone
    • emollient
  • 8 Fragrance · Fragrance (Parfum)
    General function

    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.

    Estimated lower-concentration zone

    It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.

    May not suitFragrance-sensitive routines

    Declared fragrance. On a fragrance-sensitive routine this is the line that decides it, wherever it sits on the label.

    • fragrance
    • declared fragrance
  • 9 Hydrogenated Farnesene
    General function

    A sugarcane-derived light emollient used as a plant alternative to silicone.

    Estimated lower-concentration zone

    It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.

    May suitFrizz-prone, damaged, or high-friction hair

    Emollients fill and smooth the surface of the strand, which lowers the friction that lifts the cuticle and reads as roughness.

    • emollient
  • 10 Triethyl Citrate
    General function

    A citrate ester used to stabilise fragrance and support the preservative system.

    Estimated lower-concentration zone

    It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.

    DependsFrizz-prone, damaged, or high-friction hair

    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.

    PubChem
    • pH adjuster
    • preservative
  • 11 Hydroxycitronellal
    General function

    A soft floral fragrance component named separately as a recognised allergen.

    Estimated lower-concentration zone

    It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.

    May not suitFragrance-sensitive routines

    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.

    PubChem
    • fragrance
    • named fragrance allergen
  • 12 Alpha-Isomethyl Ionone
    General function

    A violet-like fragrance component named separately as a recognised allergen.

    Estimated lower-concentration zone

    It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.

    May not suitFragrance-sensitive routines

    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.

    PubChem
    • fragrance
    • named fragrance allergen
  • 13 Linalool
    General function

    A floral fragrance component listed separately as a recognised contact allergen.

    Estimated lower-concentration zone

    It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.

    May not suitFragrance-sensitive routines

    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.

    PubChem
    • fragrance
    • named fragrance allergen
  • 14 Limonene
    General function

    A citrus-smelling fragrance component that EU rules require to be named separately because some people react to it.

    Estimated lower-concentration zone

    It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.

    May not suitFragrance-sensitive routines

    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.

    PubChem
    • fragrance
    • named fragrance allergen
  • 15 Hexyl Cinnamal
    General function

    A jasmine-like fragrance component named separately as a recognised allergen.

    Estimated lower-concentration zone

    It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.

    May not suitFragrance-sensitive routines

    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.

    PubChem
    • fragrance
    • named fragrance allergen
  • 16 Citronellol
    General function

    A rose-like fragrance component named separately as a recognised allergen.

    Estimated lower-concentration zone

    It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.

    May not suitFragrance-sensitive routines

    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.

    PubChem
    • fragrance
    • named fragrance allergen
  • 17 Geraniol
    General function

    A rose-scented fragrance component, listed on its own because some people react to it.

    Estimated lower-concentration zone

    It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.

    May not suitFragrance-sensitive routines

    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.

    • fragrance
    • named fragrance allergen

What the whole list adds up to

  • 8 fragrances
  • 7 named fragrance allergens
  • 2 solvents
  • 2 film formers
  • 2 polymers
  • 2 pH adjusters
  • 2 emollients
  • 1 drying alcohol
  • 1 propellant
  • 1 silicone
  • 1 declared fragrance
  • 1 preservative

Ingredient list captured 2026-08-23. Formulas change — check the package in your hand when an ingredient matters to you.

Price · 8 oz

Seen at $21 1 store · checked Aug 30
Good value under $32 Under $4.04/oz it costs less than three-quarters of the 6 products we score as doing the same job

Usually a good value. Most stores sell it under the $32 line, and products that do this job typically go for about $38 at this size.

Sizes

8 ozmost listed
$21
$2.63/oz
11.8 oz
$17.85
$1.51/oz

The 11.8 oz costs 43% less per ounce than the 8 oz.

Show the price ladder
Where we’ve seen it3 listings · 3 stores

8 ozmost listed

11.8 ozBest per ounce

  • Macy's
    $17.85
    11.8 oz · $1.51/oz
    Aug 30Lowest per ozSale · was $21.00

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.

How we work this out
  1. 8 oz is the size stores list most often; every comparison on this page is made at it. Other sizes are shown in the Sizes row and the store list.
  2. Seen at $21 is the price we have observed for the 8 oz. We need three stores before we call a price commonly seen.
  3. Good value under $32 comes from the 6 products we score as doing the same job as this one. A quarter of them cost less than $4.04/oz; at 8 oz that is $32. Under that line you are paying less than most of them.
  4. Each size is guarded on its own, so a multipack or a marketplace listing at one size cannot move another.
  5. About $38 is what those same products typically cost at this size — the midpoint of their prices per ounce, scaled to 8 oz.

Formula

Formula score
7 of 10

Both the formula and the price land mid-range: it covers the core of what a heat protectant does and costs about what heat protectants cost per ounce.

How the score is counted
  • Costs less per ounce than 71% of the 223 heat protectants we’ve priced
  • No humectant in the formula
  • Reviewers mention 2 things they like about how it performs
  • Salon tier, sold at Brand website
  • A film-forming heat spreaderSilicones or polymers that spread heat along the strand.3 pts
  • A stated heat claimThe brand names the protection it claims.2 pts
  • A light baseWater or a volatile carrier first, so it does not weigh hair down.2 pts
  • A humectantBinds water into the hair.1 pt
  • Slip for detanglingReduces the force it takes to comb wet hair.1 pt
  • Fragrance kept out of the top eightScent as a finishing touch, not a major share.1 pt

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

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.

Paul MitchellLighter feel Hot Off The Press Heat Protectant $6.00/oz $3.37/oz more
  • Heat protect
  • Protein-free
  • Lightweight
· Close function
Function
  • Water-binding (humectants)
  • Weight on the hair
Also
  • 2 oz bottle
Compare
Sexy HairLowest cost per oz Style Prep Me 450F Heat Protection Blow Dry Primer $3.03/oz $0.40/oz more
  • Heat protect
  • Protein-free
  • Alcohol-free
· Related function
Function
  • Film formers
  • Fast-drying alcohol
Also
  • 5.1 oz bottle
Compare
Sexy HairClose function Healthy Smooth Stunner Blowout Creme $3.83/oz $1.20/oz more
  • Heat protect
  • Protein-free
  • Alcohol-free
Function
  • Slip and detangling
  • Water-binding (humectants)
  • Fast-drying alcohol
Also
  • 6 oz bottle
Compare

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

Built for straight to curly hair

Final decision

Should you buy it?

Only for a specific need
Best user

People who blow-dry or flat-iron, looking for heat protection and a protein-free formula

Biggest tradeoff

Not ideal for anyone sensitive to fragrance, curly-method routines, or very dry or high-damage hair

Best alternative if not

Nothing in our library matches it closely 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

What the brand says, against what the formula shows

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.

1
SupportedBacked by ingredients
1
Partly supportedSome supporting logic
2
Stated by brandNo clear evidence
0
Potential conflictFormula works against claim
This thermal defense spray delivers intense thermal protection up to 450F

Our library captures this as a heat protectant, but thermal protection is measured in a lab, not read off a list.

  • Octylacrylamide/Acrylates/Butylaminoethyl Methacrylate Copolymer
  • Vinyl Caprolactam/VP/Dimethylaminoethyl Methacrylate Copolymer
  • Phenyl Trimethicone
Partly supported

Sold for hot tools; untestable here.

Maintains color vibrancy up to 25 heat styles

This is a marketing claim; an ingredient list cannot speak to it.

Stated by brand

Can’t be confirmed from label.

Locks in 98% of color pigments

A brand-run study. We report it as stated and do not repeat the number as fact.

Stated by brand

Only the brand’s testing shows this.

Usable as either a styler before hot tools or a finisher, medium hold

Synthetic hold polymers are present.

  • Octylacrylamide/Acrylates/Butylaminoethyl Methacrylate Copolymer
  • Vinyl Caprolactam/VP/Dimethylaminoethyl Methacrylate Copolymer
Supported

Structure that lasts the day.

How to read this

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

What people report

Recurring themes our researchers wrote in their own words from sourced reviews. We do not store or scrape star ratings.

Provides heat protection with a lightweight, brushable finish

Walmart reviewers

Holds style while avoiding tangles or residue for many users

Walmart reviewers

Nozzle clogging and weak hold are reported complaints

Walmart reviewers

More from Kenra

How this page was made

  • Everything above is generated from our researched product record — identity, the ingredient list as printed, the brand's own claims, dated price observations, and review themes written in our researchers' own words. No part of this page is written per product.
  • 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.
  • Both scores out of ten are defined on this page. The formula score is completeness for the job, computed from a fixed per-format checklist shown beneath the gauge; the price score is cost per ounce against every product of this type we have priced.
  • 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.
  • 5 sources consulted for this product (3 manufacturer or regulatory, 2 retailer, 0 editorial), last checked 2026-08-25.
  • Ingredient references are linked for 9 of 15 product-aware annotations on this page. Fit notes are conditional formulation guidance, not a conclusion about the finished product or about you.
  • We have not tested this product in a lab and we do not physically test your hair. Formula readings come from the ingredient list; behaviour claims are labelled as the brand's.
  • Ingredient order tells you relative amount only above roughly 1%. Prices are observations on the dates shown and change without notice.
  • Ingredient names link to our ingredient library, where each entry shows what it does, which product types use it, and where it usually sits on a label across everything we have researched.
  • This is cosmetic information, not medical advice, and nothing here diagnoses or treats a health condition.
  • Formula readings: derivation v22. Record last updated 2026-08-25.