Curl Defence Spray
Heat protectant / Spray, lightweight
- Heat protectant
- Sulfate-free
- Silicone-free
- Cruelty-free · brand states
Add it to your products. We’ll tell you if it’s ever recalled.
Scent:
No added fragrance on the label, but it contains scenting botanicals. Essential oils have a smell even when they are not labelled as fragrance.
Manufacturer page: boucleme.us
Personal fit
Is this right for you?
Complete the consultation to see how well this product fits your hair and your goals. With 6,000+ products in our library, we can match you to the right ones.
- About 20 minutes, and your answers save as you go.
- Every product matched against your hair across the 20 factors we check.
- A personalized routine built around your schedule, styling habits, and local weather.
- Find products that do the same job at a lower cost.
- Your goals, scalp, damage history, water, budget, and scent preferences all shape your plan.
$49 with 60 days of follow-up questions and plan updates
$99 with 12 months. Pay once; the year renews only if you choose.
Show all 20 factors we check
The rest of what your plan weighs on this product.
The consultation builds your hair profile, checks every factor in this table against it, and tells you where this product fits or what to use instead.
Start your consultation$49 once, with 60 days of follow-up questions and plan updates. Nothing renews, and you never have to buy a product.
Your avoid-list
Upper-mid price for a heat protectant
$5.33/oz at 6.76 oz, more than 57% of the 295 heat protectants , which mostly run $2.41–6.78/oz. The cost less.
Great for
Maybe skip if
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.
Water-first and light: unlikely to flatten fine hair.
Nothing here is built to reduce combing force.
Nothing here needs a detergent wash to remove.
Humectants near the top: binding water is one of its main jobs.
No fast-drying alcohol in the list.
No fragrance is listed.
Ingredients that matter
The ingredients that change a decision
The workhorse ingredients, plus anything lower down that changes a decision. The 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 |
|---|---|---|---|
| Aloe Barbadensis Leaf JuiceAloe Barbadensis (Aloe Vera) Leaf Juice | humectant | Pulls water into the hair | Moisturizes |
| Pentylene Glycol | humectant | Pulls water into the hair | Moisturizes |
| Lavandula Angustifolia Flower Water | botanical extract | A plant extract, there as much for marketing as for function | Neutral |
| Polyglyceryl-4 Caprate | emulsifier | Keeps oil and water mixed | Stabilizes |
| Betaine | humectant | Pulls water into the hair | Moisturizes |
| Hydroxyacetophenone | preservative | Keeps the product from spoiling | Stabilizes |
| Maltodextrin | absorbent | — | Holds |
| Fructose | humectant | Adds a little water-binding | Moisturizes |
| Citrus Grandis (Grapefruit) Peel Oil*Citrus Grandis (Grapefruit) Peel Oil | fragrance | The scent | Fragrance |
| Citrus Aurantium Bergamia (Bergamot) Fruit Oil*Citrus Aurantium Bergamia (Bergamot) Fruit Oil | fragrance | The scent | Fragrance |
| Rosmarinus Officinalis (Rosemary) Leaf Oil*Rosmarinus Officinalis (Rosemary) Leaf Oil | botanical extract | A trace plant extract | Fragrance |
| Mentha Viridis (Spearmint) Leaf Oil*Mentha Viridis (Spearmint) Leaf Oil | fragrance | The scent | Fragrance |
Full ingredient list (35)
In the US, ingredients above 1% are listed from most to least. Below 1% they can appear in any order. Each note keeps three things apart: what the ingredient generally does, its role in this type of product, and what its position can tell you.
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1
Aloe Barbadensis Leaf Juice
· Aloe Barbadensis (Aloe Vera) Leaf Juice
General function
Aloe gel, used for light moisture and slip. High in the list it also contributes a little natural hold.
Leading ingredientListed in the first three ingredients, it is likely a structural part of this formula.
May suitCurls or waves needing flexible holdGums thicken and set soft, which gives definition that bends rather than a rigid cast.
May suitFine or easily flattened hairHydration with no oil attached, so it adds very little weight even high on a list.
May suitVery dry or highly damaged hairAloe is mostly water carrying sugars that bind more of it, which is why it turns up as the base of moisture-first formulas.
- humectant
- botanical extract
- gum
-
2
Pentylene Glycol
General function
A humectant that also helps preserve the formula, often used where a brand wants a short preservative list.
Leading ingredientListed in the first three ingredients, it is likely a structural part of this formula.
PubChemMay suitFine or easily flattened hairLight and water-binding rather than oily, so it adds less weight than oils or butters do.
May suitVery dry or highly damaged hairA small water-binding solvent. It holds moisture and helps the rest of the formula spread evenly over the strand.
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.
- humectant
- solvent
- preservative
-
3
Lavandula Angustifolia Flower Water
- botanical extract
-
4
Polyglyceryl-4 Caprate
General function
A plant-derived solubiliser used to dissolve fragrance in water-based formulas.
Supporting ingredientListed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
- emulsifier
- solubilizer
-
5
Betaine
General function
A sugar-beet derived humectant that binds water. Despite the name it is not a cleanser like cocamidopropyl betaine.
Supporting ingredientListed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
PubChemMay 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 hairA 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.
- humectant
- ▾Below about here, the order stops meaning much. These are usually used at 1% or less.
-
6
Hydroxyacetophenone
General function
A preservative booster that also protects the formula from oxidising.
Estimated lower-concentration zonePubChemIt appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.
- preservative
- antioxidant
-
7
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
-
8
Fructose
General function
A fruit sugar with water-binding properties, used as a humectant to help hold moisture in leave-ins, masks and scalp treatments.
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.
- humectant
-
9
Glycerin
General function
Glycerin, also called glycerol, attracts moisture and mixes completely with water.
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
-
10
Citrus Grandis (Grapefruit) Peel Oil
· *Citrus Grandis (Grapefruit) Peel Oil
- fragrance
- botanical extract
-
11
Sodium Citrate
General function
Used with citric acid to hold the formula at a steady, slightly acidic pH. It also binds a little hard-water mineral.
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 suitBuild-up-sensitive routinesBinds the calcium and magnesium in hard water, which is what stops mineral deposits accumulating on the strand wash after wash.
May suitGray, silver, or brass-prone hairCopper and iron carried in tap water deposit on the strand and read as a dull, warm cast on gray or light hair. A chelator holds those metals in solution so the wash carries them off.
DependsFrizz-prone, damaged, or high-friction hairpH 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.
- pH adjuster
- hard-water chelator
- 12 *Citrus Nobilis (Mandarin Red) Peel Oil
-
13
Citrus Aurantium Bergamia (Bergamot) Fruit Oil
· *Citrus Aurantium Bergamia (Bergamot) Fruit Oil
General function
The essential oil of Citrus Aurantium. Essential oils are aromatic — they are in the formula for scent, and they are a common source of declared fragrance allergens.
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
- botanical extract
- 14 *Citrus Aurantium Dulcis (Orange Sweet) Peel Oil
- 15 *Origanum Majorana (Marjoram Sweet) Leaf Oil
- 16 *Michelia Alba (Magnolia) Leaf Oil
-
17
Rosmarinus Officinalis (Rosemary) Leaf Oil
· *Rosmarinus Officinalis (Rosemary) Leaf Oil
General function
Rosemary essential oil, used for scent and its traditional scalp reputation.
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 routinesEssential oils are fragrance. Several carry constituents on the EU list of declared fragrance allergens, so a label with no fragrance line can still be a scented product.
- botanical extract
- essential oil
- fragrance
- 18 *Pogostemon Cablin (Patchouli) Leaf Oil
- 19 Caesalpinia Spinosa Fruit Pod Extract / Caesalpinia Spinosa Fruit Extract
-
20
Sodium Hyaluronate
General function
A large water-binding molecule that sits on the surface holding 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.
May 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 hairA 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.
- humectant
-
21
Mentha Viridis (Spearmint) Leaf Oil
· *Mentha Viridis (Spearmint) Leaf Oil
General function
The essential oil of Spearmint (Mentha Viridis). Essential oils are aromatic — they are in the formula for scent, and they are a common source of declared fragrance allergens.
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
- botanical extract
- 22 *Styrax Tonkinensis (Benzoin) Resin Extract
-
23
Citric Acid
General function
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.
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 TrichologyMay suitBuild-up-sensitive routinesHolds hard-water minerals in solution so they rinse away instead of depositing on the hair.
May suitFrizz-prone, damaged, or high-friction hairThe 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.
May suitGray, silver, or brass-prone hairWhere a warm cast comes from water minerals rather than from the hair itself, holding those metals in solution is what removes it.
- pH adjuster
- hard-water chelator
- 24 *Michelia Alba (Magnolia) Flower Oil
- 25 *Cymbopogon Martini (Palmarosa) Leaf Oil
-
26
Helianthus Annuus (Sunflower) Sprout Extract
- botanical extract
- 27 *Litsea Cubeba (May Chang) Fruit Oil
-
28
Polyporus Umbellatus (Mushroom) Extract
- botanical extract
- 29 *Tilia Cordata (Linden) Flower Extract
- 30 †Benzyl Alcohol
- 31 †Citral
- 32 †Geraniol
- 33 †Linalool
- 34 †Benzyl Benzoate
- 35 †Limonene
What the whole list adds up to
- 8 botanical extracts
- 6 humectants
- 4 fragrances
- 2 preservatives
- 2 pH adjusters
- 2 hard-water chelators
- 1 gum
- 1 solvent
- 1 emulsifier
- 1 solubilizer
- 1 antioxidant
- 1 absorbent
- 1 film former
- 1 binder
Ingredient list captured 2026-10-07. Formulas change, so check the package in your hand when an ingredient matters to you.
Price · 6.76 oz
Priced above the products that do the same job. Stores sell it above the $30 line; products that do this job typically go for about $39 at this size.
Show the price ladder
Where we’ve seen it1 listing · 1 store
-
Boucleme (brand site)
$36.006.76 oz · $5.33/ozOct 7Lowest 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
- 6.76 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 $36 is the price we have observed for the 6.76 oz. We need three stores before we call a price commonly seen.
- Good value under $30 comes from the 6 products we score as doing the same job as this one. A quarter of them cost less than $4.50/oz; at 6.76 oz that is $30. Under that line you are paying less than most of them.
- About $39 is what those same products typically cost at this size: the midpoint of their prices per ounce, scaled to 6.76 oz.
Formula
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 more per ounce than 57% of the 295 heat protectants we’ve priced
- No stated heat claim in the formula
- Salon tier, sold at Brand website
- Salon tier
- 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 measures completeness for the job: a weighted share of the systems this product type is usually built around that we find in this list. It does not rate how well the product works or its quality, and it never compares across product types.
Does the same job
Formulas that do the same things (cleanse, condition, coat or hold) for less per ounce. Scent, texture and where you buy them can still differ.
- Lightweight
- Silicone-free
- Rinses clean
- Function
- Also
- Heat protect
- Protein-free
- Lightweight
- Function
- Also
See more alternatives in the product library
These products do a similar job. We haven’t matched them to you. Find the one that fits your hair, routine and budget
Final decision
Should you buy it?
A solid pick for the hair it suitsPeople sensitive to fragrance, for a formula with no added fragrance and a protein-free formula
Worth skipping for anyone sensitive to fragrance, very dry or very humid climates, or people shopping on a budget
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.
More from Boucleme
How this page was made
- Everything above comes from our researched product record: identity, the ingredient list as printed, the brand's own claims, dated prices and review themes our researchers wrote in their own words. No part of this page is written by hand for one 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.
- 1 source consulted for this product (0 manufacturer or regulatory, 0 retailer, 1 editorial), last checked 2026-10-07.
- Ingredient references are linked for 5 of 11 product-aware annotations on this page. Fit notes are general formulation guidance. They aren’t a verdict on the finished product or on you.
- We haven’t tested this product in a lab, and we don’t physically test your hair. Formula readings come from the ingredient list. Claims about how it behaves are labelled as the brand's.
- Ingredient order tells you relative amount only above roughly 1%. Prices are what we saw on the dates shown and can change.
- 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 v23. Record last updated 2026-10-07.
