Clinically proven to increase hair volume by 57% after just one use
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.
Bondi Boost
Thickening Therapy Spray
Styler / Volumizer, gum-set
- Styler
- volumizer
- spray
- Sulfate-free
- Silicone-free
- Curly-method
- Cruelty-free · PETA-listed
Size4.23 fl oz
Priceabout $33commonly seen · 4.23 oz
Price / oz$7.80/ozat 4.23 oz
Where to buy4 stores · $33.00–33.00
Scent:
The ingredient list declares fragrance. What it smells of is not stated, and we do not guess.
Listing used for research: ulta.com
Personal fit
Is this right for you?
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- In 10 minutes we can identify your exact hair condition and traits.
- Every product matched against your hair across the 22 factors we check.
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Factor
Your profile
Fit
Best for hair types
Straight–Wavy
Not in your profile
Moisture level
High
Not in your profile
Hold system
Low
Not in your profile
Slip / detangling
Little
Not in your profile
Weight on hair
Light
Not in your profile
Fragrance
Prominent
Not in your profile
Protein
Minor
Not in your profile
Silicone / wax buildup
None
Not in your profile
Clarifying wash needed
Low
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
Aerosol can
Pump or tube
Not in your profile
Needs heat to set
Not determined
Not in your profile
Heavy humectants
Heavy
Not in your profile
Hard-water defence
None
Not in your profile
UV filter
None listed
Not in your profile
Ingredient list
17 ingredientsAbout average
Not in your profile
Price tier
Salon
Not in your profile
Where to buy it
UltaOne channel
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
$7.80/oz at 4.23 oz — more than 79% of the 64 volumizers , which mostly run $3–6.80/oz.
Great for
Curly-method routinesno sulfates and no water-insoluble silicones
Curl definitionfilm formers hold a clump together
Fine hairthat flattens under most products
Silicone-free routinesno silicones appear in the list
Stretching wash daysnothing here needs a detergent to remove
Very dry hairno fast-drying alcohol in the list
Maybe skip if
this product carries a scent
Anyone who dislikes a castthe film formers here can set firm
Dry or very humid airwhere heavy humectants work against you
Tight budgetsit sits in the upper price tiers
Picking it up locallywe have it recorded in one channel only
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.
Hold system
Natural gum
Natural gums do the holding — softer, and it re-wets more easily.
Cast risk
Likely
Film formers without much softening them — expect a cast to scrunch out.
Weight on the hair
Light
Water-first and light: unlikely to flatten fine hair.
Oil absorption
None
No absorbent powders or starches.
Oils and butters
None
No oils or butters in the list.
Fast-drying alcohol
None
No fast-drying alcohol in the list.
Needs detergent to remove
No
Nothing here needs a detergent wash to remove.
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.
| Ingredient | What it does | Why it matters | Chip |
|---|---|---|---|
| WaterAqua | solvent | The base everything else is dissolved in | Neutral |
| Aloe Barbadensis Leaf Juice | humectant | Pulls water into the hair | Moisturizes |
| Magnesium Sulfate | salt | Thickens the formula | Stabilizes |
| Glycerin | humectant | Pulls water into the hair | Moisturizes |
| Sodium Chloride | salt | Thickens the formula | Stabilizes |
| Sorbitan Oleate Decylglucoside Crosspolymer | emulsifier | Keeps oil and water mixed | Stabilizes |
| FragranceParfum | fragrance | The scent | Fragrance |
| Pentylene Glycol | humectant | Adds a little water-binding | Moisturizes |
| Caprylyl Glycol | preservative | Keeps the product from spoiling | Moisturizes |
| Ethylhexylglycerin | preservative | Keeps the product from spoiling | Softens |
| Hydrolyzed Collagen | film former | A supporting film former | Protein |
What the list leaves out, and what it carriesThe list carries no sulfates, silicones, or drying alcohols. Fragrance is on the label.
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
Water
· Aqua
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
Aloe Barbadensis 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
-
3
Magnesium Sulfate
General function
Epsom salt, used to adjust the thickness of a liquid formula.
Leading ingredientPubChemListed in the first three ingredients, it is likely a structural part of this formula.
- salt
-
4
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.
Supporting ingredientListed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
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
-
5
Sodium Chloride
General function
Table salt. In shampoo it is used to thicken the liquid, not to treat the hair.
Supporting ingredientPubChemListed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
- salt
- thickener
-
6
Sorbitan Oleate Decylglucoside Crosspolymer
General function
A plant-derived emulsifier used to build light creams and milks.
Supporting ingredientListed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
- emulsifier
- ▾Below about this point, order stops being meaningful — these are typically used at 1% or less.
-
7
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
-
8
Pentylene Glycol
General function
A humectant that also helps preserve the formula, often used where a brand wants a short preservative 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.
PubChemMay suitFine or easily flattened hairLight and water-binding rather than oily, so it hydrates without contributing weight.
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
-
9
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
-
10
Ethylhexylglycerin
General function
A preservative booster that also adds a little softness. Almost always paired with phenoxyethanol.
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 suitFrizz-prone, damaged, or high-friction hairEmollients fill and smooth the surface of the strand, which lowers the friction that lifts the cuticle and reads as roughness.
- preservative
- emollient
-
11
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
-
12
Niacinamide
General function
Vitamin B3, used in scalp products for conditioning 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 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.
- vitamin
- conditioning agent
-
13
Sodium Hyaluronate
· Hyaluronic Acid
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
-
14
Butylene Glycol
General function
A light humectant and carrier that helps extracts dissolve.
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 hairLight and water-binding rather than oily, so it hydrates without contributing weight.
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
-
15
Hydrolyzed Collagen
General function
An animal-derived protein used for body and a smoother surface.
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 suitFrizz-prone, damaged, or high-friction hairFilling surface gaps evens out the cuticle, which is part of what makes damaged hair comb and reflect light more like undamaged hair.
May suitMaximum-hold stylingFilm formers are what hold a style: they dry into a connected film across the strands so the shape resists movement.
May suitVery dry or highly damaged hairHydrolysed fragments are small enough to sit in the gaps of a worn cuticle for a wash or two, temporarily restoring stiffness and cutting breakage in combing.
- film former
- protein
- hydrolysed protein
-
16
Chenopodium Quinoa Seed Extract
- botanical extract
-
17
Panax Ginseng Root Extract
- botanical extract
What the whole list adds up to
- 7 humectants
- 3 solvents
- 3 botanical extracts
- 3 preservatives
- 2 salts
- 2 conditioning agents
- 2 vitamins
- 1 gum
- 1 thickener
- 1 emulsifier
- 1 fragrance
- 1 declared fragrance
- 1 emollient
- 1 film former
Ingredient list captured 2026-08-27. Formulas change — check the package in your hand when an ingredient matters to you.
Price · 4.23 oz
Commonly seen
about $33
Good value under
$7
Priced above the products that do the same job. Stores sell it above the $7 line; products that do this job typically go for about $11 at this size.
Show the price ladder
Where we’ve seen it5 listings · 4 stores
4.23 ozmost listedBest per ounce
-
Ulta
$33.004.23 oz · $7.80/ozAug 27Lowest per oz
-
Ulta Beauty
$33.004.23 oz · $7.80/ozAug 29
-
Sephora
$33.004.23 oz · $7.80/ozAug 29
-
BondiBoost
$33.004.23 oz · $7.80/ozAug 29
-
Ulta
$33.00Aug 25
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
- 4.23 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.
- Commonly seen is the middle half of current prices for the 4.23 oz at recognised stores — the cheapest quarter and the dearest quarter are left out, so one sale or one overpriced listing can’t move it.
- Good value under $7 comes from the 8 products we score as doing the same job as this one. A quarter of them cost less than $1.68/oz; at 4.23 oz that is $7. Under that line you are paying less than most of them.
- About $11 is what those same products typically cost at this size — the midpoint of their prices per ounce, scaled to 4.23 oz.
Formula
9
Formula score
9 of 10
This is a complete volumizer formula. It is also above the range for volumizers per ounce, with 8 close matches selling for meaningfully less.
How the score is counted
- 8 products that do the same job cost less per ounce
- Costs more per ounce than 79% of the 64 volumizers we’ve priced
- Covers 5 of the 6 things a volumizer should do
- Reviewers mention 3 things they like about how it performs
- A hold systemThe polymer, gum, or wax that holds the shape.3 pts
- Softeners alongside the holdWhat keeps a film flexible instead of brittle.2 pts
- No drying alcohol in the first threeFast drying without leading on alcohol.2 pts
- A humectantBinds water into the hair.1 pt
- A humidity claim with a mechanismThe claim has a film former or silicone behind it.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.
Innersense Organic BeautySame function
I Create Volume Styling Gel - Orange Blossom
$2.80/oz $5.00/oz less
- Fragrance-free
- Curly method
- Lightweight
- Differs
As I AmLowest cost per oz
Curling Jelly
$1.48/oz $6.32/oz less
- Protein-free
- Curly method
- Lightweight
- Function
- Also
Curl JunkieClose function
Pattern Pusha Hair Styling Gel
$1.75/oz $6.05/oz less
- 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
Curly-method routines — for a curly-method-compatible formula and defined, clumped curls
Biggest tradeoff
Worth skipping for anyone sensitive to fragrance, anyone who will not scrunch out a cast, or very dry or very humid climates
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.
3
SupportedBacked by ingredients
0
Partly supportedSome supporting logic
1
Stated by brandNo clear evidence
0
Potential conflictFormula works against claim
Volume lasts all day
It reads light on the strand, which is what volume claims depend on.
- Hydrolyzed Collagen
Supported
Leaves room for lift.
Expands each strand for natural-looking body
It reads light on the strand, which is what volume claims depend on.
- Hydrolyzed Collagen
Supported
Leaves room for lift.
No parabens, sulfates, or silicones
No parabens appear in the ingredient list.
—
Supported
Preserved without parabens.
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.
Leaves hair feeling soft and swishy rather than stiff or crunchy
Ulta verified reviewerDelivers noticeable, all-day volume and body without feeling heavy
Ulta verified reviewer, fine/thin hairWorks especially well combined with blow-drying for lift at the root
Ulta verified reviewerA reformulation left the product feeling tacky and crunchy compared to the original version
Ulta verified reviewer, repeat purchaserResults vary by hair type -- some with coarser hair saw less dramatic volume than reviewers with fine hair
Ulta reviewers, coarse/thick hairMore from Bondi Boost
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.
- 1 source consulted for this product (0 manufacturer or regulatory, 1 retailer, 0 editorial), last checked 2026-08-27.
- Ingredient references are linked for 7 of 11 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 2026-08-27.