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Side by side

Drybar Southern Belle Volume-Boosting Mousse vs R+Co HIGHEST Volumizing Mousse

89% function match · 11 of the 13 functions we compared match Formula overlap 53%. Drybar Southern Belle Volume-Boosting Mousse and R+Co HIGHEST Volumizing Mousse share 4 ingredients among each other's most prominent.

Based on your consultation

Which of these fits your hair?

We check your pattern, moisture need, scalp, fragrance tolerance, weight sensitivity and more against each formula — and say which one lines up.

Your profile at a glance

  • Your answers appear here
  • Your answers appear here
  • Your answers appear here
  • Your answers appear here

When each one is the right call

What each formula is built for, from its own ingredient list.

  • Southern Belle Volume-Boosting Mousse — protein-hungry hair
  • HIGHEST Volumizing Mousse — protein-sensitive hair

Side by side

Every trait, aligned

One row per trait, read from each product’s own ingredient list and record. A dash means we have not researched that field for that product — it is not a “no”.

Trait
Drybar

Southern Belle Volume-Boosting Mousse

  • Styler
  • Salon
  • Sulfate-free
  • Lightweight
R+Co HIGHEST Volumizing Mousse — 6.3 oz container R+Co

HIGHEST Volumizing Mousse

  • Styler
  • Salon
  • Sulfate-free
  • Protein-free
Price, size & price per ounce
$31 6.5 oz · $4.77/oz
about $42 6.3 oz · $6.67/oz
Value / price positioning
Same job for less elsewhere $$$$$ Salon tier · costs more than 83% of the 138 mousses we’ve priced
Same job for less elsewhere $$$$$ Salon tier · costs more than 75% of the 64 volumizers we’ve priced
Best for hair types
All types Nothing in the formula or the claims narrows this to one pattern. Your hair
Straight–Wavy A light volumising formula — the lift it adds matters most on straighter hair. Your hair
Moisture level Differs
Moderate Humectants in the working part of the formula. Your hair
Low Humectants appear, but low enough to be a minor part. Your hair
Hold system Same
High Synthetic hold polymers — the firmest of the hold systems. Your hair
High Synthetic hold polymers — the firmest of the hold systems. Your hair
Slip / detangling Same
Moderate Conditioning agents are present, lower in the list. Your hair
Moderate Conditioning agents are present, lower in the list. Your hair
Weight on hair Same
Light Water-first and light: unlikely to flatten fine hair. Your hair
Light Water-first and light: unlikely to flatten fine hair. Your hair
Fragrance
Present Fragrance is listed; it sits below the working ingredients. Your hair
Prominent Fragrance sits in the first eight ingredients — a larger share of the formula. Your hair
Protein Differs
Prominent Protein high in the list — a strengthening formula, not a moisture one. Your hair
None No protein or amino acids in the list. Your hair
Silicone / wax buildup Same
High Water-insoluble silicones or waxes: a detergent wash is what removes them. Your hair
High Water-insoluble silicones or waxes: a detergent wash is what removes them. Your hair
Clarifying wash needed
Moderate Your hair
Moderate Your hair
Cast risk Same
Unlikely Softening ingredients sit alongside the film formers, so a hard shell is unlikely. Your hair
Unlikely Softening ingredients sit alongside the film formers, so a hard shell is unlikely. Your hair
Oil absorption Same
None No absorbent powders or starches. Your hair
None No absorbent powders or starches. Your hair
Oils and butters Same
Present, lower down Oils are present, but low enough to be a finishing touch. Your hair
Present, lower down Oils are present, but low enough to be a finishing touch. Your hair
Fast-drying alcohol Same
None No fast-drying alcohol in the list. Your hair
None No fast-drying alcohol in the list. Your hair
Formula completeness
out of 10
Complete for its job
out of 10
Complete for its job
Who should choose this
  • Protein-hungry hairthat stretches and stays stretched when wet
  • Curl definitionfilm formers hold a clump together
  • Fine hairthat flattens under most products
  • Very dry hairno fast-drying alcohol in the list
  • Protein-sensitive hairthat stiffens when protein is added
  • Curl definitionfilm formers hold a clump together
  • Fine hairthat flattens under most products
  • Very dry hairno fast-drying alcohol in the list
Why you might skip it
  • Scents bother youthis product carries a strong scent
  • Curly-method routinesthese silicones need a detergent to remove
  • Protein-sensitive hairthat goes stiff or straw-like on protein
  • Scents bother youthis product carries a scent
  • Curly-method routinesthese silicones need a detergent to remove
  • Aerosol avoidancethis is a pressurised can
from the formula stated by the brand reported by reviewers Scale: 1 dot low · 5 dots high, within this product type.
More facts about each one
Type
Stylerfoam
Stylerfoam
Where to buy
Ulta
Brand website · Specialty beauty
Free of
  • sulfate-free
  • sulfate-free
  • protein-free
Vegan
Vegan · label states
Vegan · brand states
Scent
Scented, not described
Scented, not described
Finish
—
shine
How often
as needed
—

Facts as we recorded them. A dash means we have not researched that field for that product — it is not a "no".

The bottom line

The bottom line depends on your hair

Which of these two suits you is a question about your hair, not about them. The consultation answers it — and tells you what your routine needs around it.

Take the consultation

$49.00 once, for your consultation and hair profile. No subscription, no required purchases.

The detail behind the table

Where the readings above come from: the ingredient lists themselves, each brand’s claims checked against them, what owners report, and cost per ounce in context.

Shared and distinct ingredients

Shared and distinct ingredients

Computed from the ingredient lists as printed. "Shared" means both lists carry it; where it sits on each label is stated, because position is what tells you how much.

What both formulas carry

IngredientSouthern Belle Volume-Boosting MousseHIGHEST Volumizing Mousse
Water
Neutral
#1Leading
#1Leading
Isobutane
Neutral
#2Leading
#3Leading
Propane
Neutral
#3Leading
#4Supporting
Fragrance
Fragrance
#19Below the 1% line
#7Below the 1% line
Silicone Quaternium-3
Buildup
#25Below the 1% line
#15Below the 1% line
Phenoxyethanol
Stabilizes
#31Below the 1% line
#6Below the 1% line
Oleth-20
Stabilizes
#16Below the 1% line
#8Below the 1% line

What only one of them carries

Southern Belle Volume-Boosting Mousse

HIGHEST Volumizing Mousse

Full ingredient list — Southern Belle Volume-Boosting Mousse (37)
Full ingredient list — HIGHEST Volumizing Mousse (37)

Claims check

What each brand says, against what each formula shows

Claims are quoted from each brand. We only mark one supported, partly supported, or conflicting when that product’s ingredient list actually speaks to it.

VerdictsSouthern Belle Volume-Boosting MousseHIGHEST Volumizing Mousse
Supported
2
3
Partly supported
0
0
Stated by brand
1
2
Potential conflict
0
0

Southern Belle Volume-Boosting Mousse

  • Long-lasting bodySupportedLeaves room for lift.
  • Improves style memoryStated by brandCan’t be confirmed from label.
  • Builds volumeSupportedLeaves room for lift.

HIGHEST Volumizing Mousse

  • weightless volumeSupportedLeaves room for lift.
  • visibly thickens strandsSupportedLeaves room for lift.
  • long-lasting fullnessStated by brandCan’t be confirmed from label.
  • softness and shineSupportedReflects light for visible shine.
  • all-day style memoryStated by brandCan’t be confirmed from label.

What owners say

What people report

Recurring themes our researchers wrote in their own words from sourced reviews. We do not store or scrape star ratings, and we never balance one product’s themes against another’s by inventing them.

Both praised for a light feel and volume. Drybar Southern Belle Volume-Boosting Mousse draws complaints about the scent and irritation.

Southern Belle Volume-Boosting Mousse

Adds density and makes hair noticeably more manageable

Ulta reviewer

Adds volume to thin, flat hair and works well air-dried for everyday use

Ulta reviewer with thin, flat hair

Gives volume without adding weight and a can lasts a long time

Ulta reviewer

Strong perfume scent made eyes water and caused a headache

Ulta reviewer

Fragrance is overpowering, compared to an old-fashioned perfume, and gives a headache

Ulta reviewer sensitive to scent

HIGHEST Volumizing Mousse

Many reviewers like the fuller appearance, soft finish, shine, and pleasant fragrance.

volume-and-texture reviewers

Reviewers commonly praise lift and bounce on fine or otherwise flat hair without a sticky feel.

fine, straight, and wavy-hair reviewers

Some reviewers are cautious about dryness or frizz and say the formula is thick or creamy.

wavy and texture-sensitive reviewers

Price check

Cost per ounce, in context

Cost per ounce against every product of this type we have priced, each at the size it is most often sold in. Value labels are computed from that percentile and from how many products that do the same job cost less; they are comparisons, not judgements about a brand.

$4.77/oz vs $6.67/oz — R+Co HIGHEST Volumizing Mousse costs about 1.4× more per ounce than Drybar Southern Belle Volume-Boosting Mousse.

Southern Belle Volume-Boosting Mousse

Against 138 mousses with a computable unit price.

HIGHEST Volumizing Mousse

Against 64 volumizers with a computable unit price.

Value readSouthern Belle Volume-Boosting MousseHIGHEST Volumizing Mousse
Label
Same job for less elsewhereYou are paying above the range for a formula close to several lower-priced options.
Same job for less elsewhereYou are paying above the range for a formula close to several lower-priced options.

Computed from cost per ounce against every product of this type we have priced, and from how many products that do the same job cost less. It is a comparison, not a judgement about the brand.

Compare with something else

Close formulas to each of these, as their own comparison pages.

Southern Belle Volume-Boosting Mousse vs Style & Wrap MousseAphogee · 95% function matchHIGHEST Volumizing Mousse vs Frizz Ease Dream Curls Daily Styling SprayJohn Frieda · 89% function matchSouthern Belle Volume-Boosting Mousse vs Frizz Ease Dream Curls Daily Styling SprayJohn Frieda · 95% function matchHIGHEST Volumizing Mousse vs This Is A Volume Boosting MousseDavines · 85% function matchSouthern Belle Volume-Boosting Mousse vs Caviar Anti-Aging Multiplying Volume Styling MousseAlterna · 89% function matchHIGHEST Volumizing Mousse vs TRESemmé Bouncy Curls Defining MousseTRESemmé · 85% function matchSouthern Belle Volume-Boosting Mousse vs Elvive Collagen Peptide + Lifter Big Lift Volumizing Mousse for Thin, Flat HairL'Oreal Paris Elvive · 86% function matchHIGHEST Volumizing Mousse vs ELEVATE MousseUNITE Hair · 85% function match

Southern Belle Volume-Boosting Mousse · HIGHEST Volumizing Mousse · All mousses in the library

How this page was made

  • This page is assembled from the same researched records the individual product pages render: identity, each ingredient list as printed, each brand's own claims, dated price observations, and review themes written in our researchers' own words. Nothing on it is written per comparison.
  • We do not rank these against each other. Which of them suits you depends on your hair, and that is what the consultation works out.
  • The formula similarity percentage is a stored, precomputed number: position-weighted overlap of the two ingredient lists blended with agreement on the attributes we derive. It measures how alike two formulas are, not how well either works.
  • 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.
  • 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 were consulted across the products on this page.
  • Ingredient order tells you relative amount only above roughly 1%. Prices are observations on the dates shown and change without notice. We do not sell these products and take no placement fees.
  • This is cosmetic information, not medical advice, and nothing here diagnoses or treats a health condition.

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