Root Boost
Styler / Volumizer, polymer-set
- Styler
- volumizer
- Sulfate-free
- Silicone-free
- Protein-free
Scent:
The ingredient list declares fragrance. What it smells of is not stated, and we do not guess.
Manufacturer page: bedhead.com
Personal fit
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The rest of what your plan weighs on this product.
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Your avoid-list
Lower cost than most volumizers
$2.35/oz at 8.5 oz — less than 83% of the 64 volumizers , which mostly run $3–6.80/oz.
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.
Synthetic hold polymers — the firmest of the hold systems.
Film formers without much softening them — expect a cast to scrunch out.
Middle of the range — noticeable on fine hair, light on coarse hair.
No absorbent powders or starches.
No oils or butters in the list.
Fast-drying alcohol is present — it speeds drying and can read dry on the hair.
Nothing here needs a detergent wash to remove.
Fragrance is listed; it sits below the working ingredients.
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 |
| Dimethyl Ether | propellant | Pushes the product out of the can | Neutral |
| VP/VA Copolymer | film former | Lays down the film that holds a shape | Holds |
| PVP | film former | Lays down the film that holds a shape | Holds |
| Isobutane | propellant | Pushes the product out of the can | Neutral |
| Peg-45 Palm Kernel Glycerides | emulsifier | Keeps oil and water mixed | Softens |
| Phenoxyethanol | preservative | Keeps the product from spoiling | Stabilizes |
| PPG-5-Ceteth-20 | emulsifier | Stabilises the mix | Stabilizes |
| FragranceFragrance (Parfum) | fragrance | The scent | Fragrance |
| Isopropyl Alcohol | drying alcohol | A small amount, for fast setting | Drying |
| Benzyl Salicylate | fragrance | The scent | Fragrance |
| Butylphenyl Methylpropional | fragrance | The scent | Fragrance |
Full ingredient list (27)
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
Dimethyl Ether
General function
An aerosol propellant that also helps the formula spray as a fine, fast-drying mist.
Leading ingredientPubChemListed in the first three ingredients, it is likely a structural part of this formula.
- propellant
- solvent
-
3
VP/VA Copolymer
General function
A hold polymer that dries to a clear film. It sets the style and washes out with water.
Leading ingredientListed in the first three ingredients, it is likely a structural part of this formula.
May suitClimate-sensitive or frizz-prone hairA set polymer film is a physical barrier to humidity, so a style keeps its shape longer in damp conditions.
May suitMaximum-hold stylingSynthetic film formers dry into a continuous film, which is what holds a shape against movement and against humid air.
DependsBuild-up-sensitive routinesSome 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
PVP
General function
A classic hairspray polymer. It gives firm hold but attracts moisture, so humidity can soften the set.
Supporting ingredientListed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
PubChemMay suitMaximum-hold stylingSynthetic film formers dry into a continuous film, which is what holds a shape against movement and against humid air.
DependsBuild-up-sensitive routinesSome acrylate copolymers rinse with water and some need a detergent; the label alone does not say which one a formula used.
May not suitClimate-sensitive or frizz-prone hairThe film takes up water from the air. The patent work that produced the VP/VA copolymers describes a PVP film turning sticky after time in a humid atmosphere, and being dependable only where humidity is low — so hold and feel both move with the weather.
- film former
- polymer
-
5
Isobutane
General function
A pressurised gas that pushes an aerosol out of the can and evaporates on contact.
Supporting ingredientPubChemListed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
- propellant
-
6
Peg-45 Palm Kernel Glycerides
General function
A plant fat made water-dispersible by ethoxylation. It softens the formula and helps the oil and water phases stay together.
Supporting ingredientListed in positions 4–8, it likely makes a meaningful contribution alongside the formula's main ingredients.
- emulsifier
- emollient
- ▾Below about this point, order stops being meaningful — these are typically used at 1% or less.
-
7
Phenoxyethanol
General function
The most common modern preservative; it keeps the product free of bacteria and mould. It sits well below 1% of the formula.
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
-
8
PPG-5-Ceteth-20
General function
A solubiliser that keeps oils and fragrance dissolved in clear liquids.
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.
- emulsifier
- solubilizer
-
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
Carbomer
General function
A thickener that turns a liquid into a clear gel. It also contributes a light hold.
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 suitClimate-sensitive or frizz-prone hairA set polymer film is a physical barrier to humidity, so a style keeps its shape longer in damp conditions.
May suitMaximum-hold stylingSynthetic film formers dry into a continuous film, which is what holds a shape against movement and against humid air.
DependsBuild-up-sensitive routinesSome acrylate copolymers rinse with water and some need a detergent; the label alone does not say which one a formula used.
- thickener
- polymer
- film former
-
11
Triethanolamine
General function
A base used in trace amounts to neutralise acidic polymers so a gel thickens.
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.
PubChemDependsFrizz-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
-
12
Polysorbate 20
- solubilizer
- emulsifier
-
13
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
-
14
Polyquaternium-7
General function
A conditioning polymer that improves wet combing and adds body. Repeated use can build up on fine hair.
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.
- conditioning agent
- film former
- polymer
-
15
Butane
- propellant
-
16
Tetrasodium EDTA
General function
Binds the metal ions in hard water so they cannot dull hair or destabilise the formula.
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.
- hard-water chelator
-
17
Benzophenone-4
General function
A UV filter added to keep the product itself, and dyed hair, from fading in light.
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 suitGray, silver, or brass-prone hairSunlight oxidises hair pigment, and on gray, silver or lightened hair that shows up as yellowing. A UV filter on the label absorbs some of the light that drives it.
- UV filter
-
18
Propane
- propellant
-
19
Isopropyl Alcohol
General function
A fast-evaporating alcohol used as a solvent and to speed drying. Well down the list it is a processing aid; near the top it can leave hair feeling dry.
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 hairEvaporates on contact, which is how a spray sets almost instantly and leaves no weight behind it.
- drying alcohol
- solvent
-
20
Laurtrimonium Chloride
General function
A light conditioning agent common in sprays and leave-ins where weight matters.
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 hairA cationic conditioning agent: it binds to the damaged, negatively charged parts of the cuticle and lowers combing friction there.
May suitVery dry or highly damaged hairThe class that does the detangling in a conditioner. It deposits lubrication where the cuticle is worn.
DependsBuild-up-sensitive routinesSubstantive by design. A routine with no detergent wash gives it nothing to leave with.
- conditioning agent
-
21
Sodium Benzoate
- preservative
-
22
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
-
23
Butylphenyl Methylpropional
General function
A floral fragrance component (lilial) named separately as a recognised allergen; increasingly reformulated out.
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
Geraniol
General function
A rose-scented fragrance component, listed on its own 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.
May 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
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
-
26
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
-
27
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
What the whole list adds up to
- 7 fragrances
- 6 named fragrance allergens
- 4 propellants
- 4 film formers
- 4 polymers
- 3 solvents
- 3 emulsifiers
- 3 preservatives
- 2 solubilizers
- 2 conditioning agents
- 1 emollient
- 1 humectant
- 1 thickener
- 1 pH adjuster
Ingredient list captured 2026-09-12. Formulas change — check the package in your hand when an ingredient matters to you.
Price · 8.5 oz
Usually a good value. Most stores sell it under the $22 line, and products that do this job typically go for about $27 at this size.
Show the price ladder
Where we’ve seen it1 listing · 1 store
-
ulta.com
$20.008.5 oz · $2.35/ozSep 12Lowest 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
- 8.5 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 $20 is the price we have observed for the 8.5 oz. We need three stores before we call a price commonly seen.
- Good value under $22 comes from the 8 products we score as doing the same job as this one. A quarter of them cost less than $2.61/oz; at 8.5 oz that is $22. Under that line you are paying less than most of them.
- About $27 is what those same products typically cost at this size — the midpoint of their prices per ounce, scaled to 8.5 oz.
Formula
It carries the working systems a volumizer needs and still sits in the lower part of the price range for volumizers per ounce.
How the score is counted
- Costs less per ounce than 83% of the 64 volumizers we’ve priced
- Covers 6 of the 6 things a volumizer should do
- Masstige tier, sold at Ulta and Target
- Masstige tier
- 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
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.
- Protein-free
- Curly method
- Lightweight
- 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?
A solid pick for the hair it suitsHair that stiffens on protein who want a protein-free formula and a curly-method-compatible formula
Not ideal for anyone sensitive to fragrance, very dry or high-damage hair, or anyone who will not scrunch out a cast
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.
Reviewers
What people report
Recurring themes our researchers wrote in their own words from sourced reviews. We do not store or scrape star ratings.
A recurring complaint across reviews is the aerosol can losing pressure or the nozzle clogging or breaking before the product is used up
Reviewers with fine or thin hair say a light root spritz before blow-drying adds real lift and volume without weighing hair down
Multiple reviewers describe the scent as light and pleasant rather than overpowering, though the brand's own AI review summary flags fragrance as a mixed point for some users
Several reviewers emphasize the product goes on without stickiness or residue, unlike other root-lift sprays they compare it to
More from Bed Head
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.
- 6 sources consulted for this product (2 manufacturer or regulatory, 1 retailer, 3 editorial), last checked 2026-09-12.
- Ingredient references are linked for 12 of 17 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 2026-09-12.