A heat-protective cream to help straighten hair
This is a marketing claim; an ingredient list cannot speak to it.
—
Stated by brand
Can’t be confirmed from label.
Product image coming soon
Bumble and bumble
Straight Blow Dry Heat Protective Styling Cream
Leave-in / Everyday leave-in, medium-weight
- Leave-in
- cream
- Also a heat protectant
- Also a styler
- Sulfate-free
- Cruelty-free · PETA-listed
Scent:
The ingredient list declares fragrance. What it smells of is not stated, and we do not guess.
Listing used for research: sephora.com
Personal fit
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Factor
Your profile
Fit
Best for hair types
All types
Not in your profile
Moisture level
Moderate
Not in your profile
Oils and butters
None
Not in your profile
Slip / detangling
High
Not in your profile
Weight on hair
Medium
Not in your profile
Fragrance
Present
Not in your profile
Protein
Minor
Not in your profile
Silicone / wax buildup
High
Not in your profile
Clarifying wash needed
Moderate
Not in your profile
Parabens / preservatives
None of these listed
Not in your profile
Show all 22 factors we check
The rest of what your plan weighs on this product.
Essential oils
None listed
Not in your profile
Fast-drying alcohol
None
Not in your profile
Vegan / cruelty-free
Cruelty-free · PETA-listed
Not in your profile
Animal-derived ingredients
Not yet verified
Not in your profile
Heavy humectants
Not heavy
Not in your profile
Hard-water defence
None
Not in your profile
UV filter
None listed
Not in your profile
pH adjusted
No adjuster listed
Not in your profile
Heat protection
Moderate
Not in your profile
Ingredient list
28 ingredientsAbout average
Not in your profile
Price tier
Prestige
Not in your profile
Where to buy it
Salons · Brand website
Not in your profile
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
$7.40/oz at 5 oz — more than 86% of the 1351 leave-ins , which mostly run $1.46–5.52/oz.
Great for
Heat stylingthe brand positions this as a heat protectant
Maximum slipfor hair that tangles the moment it is wet
Curl definitionfilm formers hold a clump together
Very dry hairno fast-drying alcohol in the list
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
Tight budgetsit sits in the upper price tiers
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.
Weight on the hair
Medium
Middle of the range — noticeable on fine hair, light on coarse hair.
Slip and detangling
High
Conditioning agents sit high in the list — this is a detangling formula.
Water-binding (humectants)
Moderate
Humectants in the working part of the formula.
Oils and butters
None
No oils or butters in the list.
Protein
Minor
Protein appears, low enough to be a supporting ingredient.
Heat protection
Claimed, no temperature given
Sold as a heat protectant; no temperature is stated.
Needs detergent to remove
Yes
Water-insoluble silicones or waxes: a detergent wash is what removes them.
Fragrance
Present
Fragrance is listed; it sits below the working ingredients.
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.
| Ingredient | What it does | Why it matters | Chip |
|---|---|---|---|
| WaterWater/Aqua/Eau | solvent | The base everything else is dissolved in | Neutral |
| Dimethicone | silicone | Smooths the cuticle and adds shine | Buildup |
| Phenyl Trimethicone | silicone | Smooths the cuticle and adds shine | Buildup |
| Cetearyl Alcohol | fatty alcohol | Thickens and conditions — not a drying alcohol | Softens |
| Cetyl Alcohol | fatty alcohol | Thickens and conditions — not a drying alcohol | Softens |
| Transglutaminase | active | The over-the-counter active | Active |
| Malachite | mineral | A minor mineral component | Neutral |
| Behentrimonium Chloride | conditioning agent | Adds slip, lower in the list | Detangles |
| Hexyl Cinnamal | fragrance | The scent | Fragrance |
| Linalool | fragrance | The scent | Fragrance |
| Limonene | fragrance | The scent | Fragrance |
| Benzyl Salicylate | fragrance | The scent | Fragrance |
What the list leaves out, and what it carriesNo sulfates or drying alcohols. Contains fragrance. The silicones here need a detergent wash to come off.
Full ingredient list (28)
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
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.
Leading ingredientListed in the first three ingredients, it is likely a structural part of this formula.
- solvent
-
2
Dimethicone
General function
The most common conditioning silicone. It coats the strand for shine, slip, and frizz control, and needs a detergent (not just water) to wash out.
Leading ingredientListed in the first three ingredients, it is likely a structural part of this formula.
May suitClimate-sensitive or frizz-prone hairA 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 hairLays a smooth film along the cuticle, which lowers combing friction and flattens the surface irregularities that read as frizz.
May not suitBuild-up-sensitive routinesDimethicone does not disperse in water. On a routine that skips detergent it stays on the hair and accumulates wash after wash.
- silicone
- emollient
- conditioning agent
-
3
Phenyl Trimethicone
General function
A high-refractive silicone used specifically for visible shine in serums and finishing oils.
Leading ingredientListed in the first three ingredients, it is likely a structural part of this formula.
May suitClimate-sensitive or frizz-prone hairA 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 hairLays a smooth film along the cuticle, which lowers combing friction and flattens the surface irregularities that read as frizz.
May not suitBuild-up-sensitive routinesDimethicone does not disperse in water. On a routine that skips detergent it stays on the hair and accumulates wash after wash.
- silicone
- emollient
-
4
Cetearyl Alcohol
General function
A waxy fatty alcohol - nothing like drying alcohol. It gives conditioners their body and leaves a soft, smoothing film on the hair.
Supporting ingredientListed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
PubChemMay suitDry, coarse, or high-porosity hairThe waxy solid that gives a conditioner its body. It deposits a soft lubricating layer, which is most of what makes hair feel smooth after rinsing.
May suitFrizz-prone, damaged, or high-friction hairDeposits with the cationic conditioners and helps them lie flat along the strand, which is where the detangling actually comes from.
DependsFine or easily flattened hairNear the top of a conditioner it is doing most of the conditioning, and most of the weighting, at the same time.
- fatty alcohol
- emollient
- thickener
-
5
Cetyl Alcohol
General function
A fatty alcohol used to thicken creams and add slip. It softens rather than dries.
Supporting ingredientListed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
PubChemMay suitDry, coarse, or high-porosity hairThe waxy solid that gives a conditioner its body. It deposits a soft lubricating layer, which is most of what makes hair feel smooth after rinsing.
May suitFrizz-prone, damaged, or high-friction hairDeposits with the cationic conditioners and helps them lie flat along the strand, which is where the detangling actually comes from.
DependsFine or easily flattened hairNear the top of a conditioner it is doing most of the conditioning, and most of the weighting, at the same time.
- fatty alcohol
- emollient
- thickener
-
6
Transglutaminase
General function
An enzyme that cross-links proteins, used in repair-positioned formulas to bind protein onto the strand.
Supporting ingredientListed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
- active
- protein
- ▾Below about this point, order stops being meaningful — these are typically used at 1% or less.
-
7
Malachite
General function
A copper mineral used at trace levels for colour and marketing rather than performance.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
- mineral
- colourant
-
8
Behentrimonium Chloride
General function
A positively charged conditioning agent that binds to damaged, negatively charged spots on the hair. It is the main detangling ingredient in most rinse-out conditioners.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
International Journal of Cosmetic ScienceMay suitFrizz-prone, damaged, or high-friction hairA cationic conditioning agent: it binds to the damaged, negatively charged parts of the cuticle and lowers combing friction there.
DependsBuild-up-sensitive routinesSubstantive by design. A routine with no detergent wash gives it nothing to leave with.
DependsVery dry or highly damaged hairEvery detergent removes some sebum along with the product it is there to wash out. Which detergent it is matters more than that there is one.
- conditioning agent
- cleanser
- 9 Sapphire Powder
- 10 Polylysine
-
11
Glycerin
General function
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.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
Scientific ReportsMay suitDry, coarse, or high-porosity hairHigh-porosity hair loses water fast; a humectant holds some of it in place for longer than the wash itself would.
May suitVery dry or highly damaged hairBinds water into the outer layers of the strand, and water is what makes dry hair flexible again rather than brittle.
DependsClimate-sensitive or frizz-prone hairWater 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.
- humectant
-
12
Pearl Powder
General function
Ground pearl, used at trace levels for luxury positioning and a faint sheen.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
May suitFine or easily flattened hairA dry powder takes up oil and adds friction between strands, which is most of what root lift in fine hair actually is.
- powder
- mineral
-
13
Panthenol
General function
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.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
PubChemMay suitFine or easily flattened hairIt hydrates without adding oil or a film, which is the combination fine hair usually needs.
May suitFrizz-prone, damaged, or high-friction hairDeposits a lubricating layer that makes combing easier, which is most of what stops mechanical damage adding to frizz.
May suitVery dry or highly damaged hairA humectant that also penetrates the cuticle, so it holds water inside the strand rather than only on the surface.
- humectant
- conditioning agent
- vitamin
-
14
Polyquaternium-11
General function
A styling and conditioning polymer that adds light hold and shine, common in mousses and setting sprays.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
May suitCurls or waves needing flexible holdCationic polymers hold a curl loosely and stay soft, which is why they turn up in definition products rather than firm-hold ones.
May suitFrizz-prone, damaged, or high-friction hairA cationic polymer stays on the hair through rinsing, which is what keeps static and combing friction down after the wash.
May suitMaximum-hold stylingFilm formers are what hold a style: they dry into a connected film across the strands so the shape resists movement.
- film former
- polymer
- conditioning agent
-
15
Caprylyl Glycol
General function
A gentle preservative helper that also holds a little moisture.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
PubChemMay suitVery dry or highly damaged hairHumectants bind water into the strand, and water — not oil — is what makes dry hair flexible instead of brittle.
DependsClimate-sensitive or frizz-prone hairA 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.
- preservative
- humectant
-
16
Laureth-4
- emulsifier
- 17 Tourmaline
-
18
Maltodextrin
General function
A starch fragment that soaks up oil and water, which is what puts it in dry shampoos. It also carries spray-dried plant extracts and leaves a light film.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
May suitFine or easily flattened hairTakes up oil at the root, which is where fine hair goes flat first.
May suitMaximum-hold stylingFilm formers are what hold a style: they dry into a connected film across the strands so the shape resists movement.
DependsCurls or waves needing flexible holdHow rigid the finish is depends on which polymer it is and what the formula pairs with it, not on there being one.
- absorbent
- film former
- binder
-
19
Phenoxyethanol
- preservative
-
20
Hexyl Cinnamal
General function
A jasmine-like fragrance component named separately as a recognised allergen.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
PubChemMay not suitFragrance-sensitive routinesOne 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
-
21
Linalool
General function
A floral fragrance component listed separately as a recognised contact allergen.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
PubChemMay not suitFragrance-sensitive routinesOne 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
-
22
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 zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
PubChemMay not suitFragrance-sensitive routinesOne 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
-
23
Benzyl Salicylate
General function
A soft floral fragrance component listed separately as a recognised allergen.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
PubChemMay not suitFragrance-sensitive routinesOne 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
-
24
Citronellol
General function
A rose-like fragrance component named separately as a recognised allergen.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
PubChemMay not suitFragrance-sensitive routinesOne 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
-
25
Benzyl Alcohol
- preservative
- solvent
-
26
Coumarin
General function
A sweet, hay-like fragrance component listed separately as a recognised allergen.
Estimated lower-concentration zoneIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
PubChemMay not suitFragrance-sensitive routinesOne 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
-
27
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 zoneIt 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 routinesDeclared fragrance. On a fragrance-sensitive routine this is the line that decides it, wherever it sits on the label.
- fragrance
- declared fragrance
-
28
BHT
- antioxidant
What the whole list adds up to
- 7 fragrances
- 6 named fragrance allergens
- 4 emollients
- 3 humectants
- 3 preservatives
- 2 solvents
- 2 silicones
- 2 conditioning agents
- 2 fatty alcohols
- 2 thickeners
- 2 minerals
- 2 conditioning agents
- 2 film formers
- 1 active
Ingredient list captured 2026-08-22. Formulas change — check the package in your hand when an ingredient matters to you.
Price · 5 oz
Seen at
$37
Good value under
$15
Priced above the products that do the same job. Stores sell it above the $15 line; products that do this job typically go for about $26 at this size.
Show the price ladder
Where we’ve seen it1 listing · 1 store
-
Sephora / bumbleandbumble.com (agreeing)
$37.005 oz · $7.40/ozAug 22Lowest per 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.
How we work this out
- 5 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.
- Seen at $37 is the price we have observed for the 5 oz. We need three stores before we call a price commonly seen.
- Good value under $15 comes from the 6 products we score as doing the same job as this one. A quarter of them cost less than $2.91/oz; at 5 oz that is $15. Under that line you are paying less than most of them.
- About $26 is what those same products typically cost at this size — the midpoint of their prices per ounce, scaled to 5 oz.
Formula
9
Formula score
9 of 10
The formula carries what a leave-in is built around, and 3 products we score as close matches cost at least a quarter less per ounce. The difference is buying the label, not a different formula.
How the score is counted
- 3 products we score as doing the same job cost less per ounce
- Costs more per ounce than 86% of the 1351 leave-ins we’ve priced
- Covers 5 of the 6 things a leave-in should do
- Reviewers mention 3 things they like about how it performs
- Conditioning agents up frontWhat makes wet hair comb through.2 pts
- A humectantBinds water into the hair.2 pts
- A light baseWater or a volatile carrier first, so it does not weigh hair down.2 pts
- Oils or butters in the working zoneSoftens the strand rather than just coating it.2 pts
- No detergent-dependent filmNothing that needs a clarifying wash to remove.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, 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.
RuskLowest cost per oz
Sensories Smoother Passionflower & Aloe Smoothing Leave-In Conditioner
$0.69/oz $6.71/oz less
- Alcohol-free
- Medium weight
- Function
- Also
Paul MitchellClose function
Clean Beauty Repair Leave-In Treatment
$4.90/oz $2.50/oz less
- Alcohol-free
- Vegan & CF
- Medium weight
- Function
- Also
KenraLighter feel
Daily Provision
$2.25/oz $5.15/oz less
- Heat protect
- Lightweight
- Alcohol-free
- Function
- Also
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
Should you buy it?
Good for the right person, not the lowest costBest user
People who blow-dry or flat-iron who want heat protection and real detangling slip
Biggest tradeoff
Not ideal for anyone sensitive to fragrance, curly-method routines, 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
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.
2
SupportedBacked by ingredients
0
Partly supportedSome supporting logic
1
Stated by brandNo clear evidence
0
Potential conflictFormula works against claim
Helps keep styles smooth and sleek
Silicones or film formers smooth the cuticle, which is the usual mechanism.
- Dimethicone
- Phenyl Trimethicone
- Polyquaternium-11
Supported
Smoother strands, less frizz.
Reduces frizz for up to 3 days
Silicones or film formers smooth the cuticle, which is the usual mechanism.
- Dimethicone
- Phenyl Trimethicone
- Polyquaternium-11
Supported
Smoother strands, less frizz.
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.
'This product gives me the shiniest, straight hair with a flat iron and the smoothest loose curls. Ever.' -- praises versatility for both straightening and curling styles
'When I woke up, my hair felt like silk' -- praises overnight/next-day feel after use
'It eliminates all frizz and makes my hair smooth without weighing it down at all' -- praises frizz control without heaviness
More from Bumble and bumble
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.
- 3 sources consulted for this product (0 manufacturer or regulatory, 3 retailer, 0 editorial), last checked 2026-08-25.
- Ingredient references are linked for 12 of 18 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.