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Side by side

Bondi Boost Thickening Therapy Spray vs Kinky-Curly Original Curling Custard Natural Styling Gel

93% function match · 11 of the 13 functions we compared match Formula overlap 0%. Bondi Boost Thickening Therapy Spray and Kinky-Curly Original Curling Custard Natural Styling Gel share no ingredient among each other's most prominent — which does not stop them doing the same job.

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.

  • Thickening Therapy Spray — curly-method routines
  • Original Curling Custard Natural Styling Gel — 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
Bondi Boost Thickening Therapy Spray — 4.23 oz container Bondi Boost

Thickening Therapy Spray

  • Styler
  • Salon
  • Sulfate-free
  • Silicone-free
Kinky-Curly

Original Curling Custard Natural Styling Gel

  • Styler
  • Masstige
  • Sulfate-free
  • Silicone-free
Price, size & price per ounce
about $33 4.23 oz · $7.80/oz
$22.99 8 oz · $2.87/oz
Value / price positioning
Same job for less elsewhere $$$$$ Salon tier · costs more than 78% of the 66 volumizers we’ve priced
Upper-mid price for a gel $$$$$ Masstige tier · costs more than 60% of the 159 gels we’ve priced
Best for hair types
Straight–Wavy A light volumising formula — the lift it adds matters most on straighter hair. Your hair
Wavy–Coily Co-washes, curl creams, and gels are built around wave and curl. Your hair
Moisture level Differs
High Humectants near the top — water-binding is a headline mechanism here. Your hair
Moderate Humectants in the working part of the formula. Your hair
Hold system Same
Low Natural gums do the holding — softer, and it re-wets more easily. Your hair
Natural gum Natural gums do the holding — softer, and it re-wets more easily. Your hair
Slip / detangling Same
Little Nothing here is built to reduce combing force. Your hair
Little Nothing here is built to reduce combing force. 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
Prominent Fragrance sits in the first eight ingredients — a larger share of the formula. Your hair
Present Fragrance is listed; it sits below the working ingredients. Your hair
Protein Differs
Minor Protein appears, low enough to be a supporting ingredient. Your hair
None No protein or amino acids in the list. Your hair
Silicone / wax buildup Same
None Nothing here needs a detergent wash to remove. Your hair
None Nothing here needs a detergent wash to remove. Your hair
Clarifying wash needed
Low Your hair
Low Your hair
Hold (as stated)
—
Medium A medium hold, as stated by the brand. Your hair
Cast risk Same
Likely Film formers without much softening them — expect a cast to scrunch out. Your hair
Likely Film formers without much softening them — expect a cast to scrunch out. 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
None No oils or butters in the list. Your hair
None No oils or butters in the list. 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
  • 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
  • Protein-sensitive hairthat stiffens when protein is added
  • Curly-method routinesno sulfates and no water-insoluble silicones
  • Curl definitionfilm formers hold a clump together
  • Fine hairthat flattens under most products
Why you might skip it
  • Scents bother youthis 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
  • Scents bother youthis 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
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
Stylerspray
Stylerjelly
Where to buy
Ulta
Target · IHerb · Walmart
Free of
  • sulfate-free
  • silicone-free
  • curly-method compatible
  • sulfate-free
  • silicone-free
  • protein-free
  • curly-method compatible
Cruelty-free
Cruelty-free · PETA-listed
Cruelty-free · PETA-listed
Scent
Scented, not described
Scented, not described
Hold
—
mediumThe active Target listing says the gel provides long-lasting hold and lets users vary the amount for fuller or more controlled curls; an independent current Walmart listing summarizes the product as firm hold. Medium is retained as the conservative normalized tier for this adjustable, no-crunch custard.
Finish
natural
shine
How often
as needed
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

IngredientThickening Therapy SprayOriginal Curling Custard Natural Styling Gel
Fragrance
Fragrance
#7Below the 1% line
#12Below the 1% line

What only one of them carries

Thickening Therapy Spray

Original Curling Custard Natural Styling Gel

Full ingredient list — Thickening Therapy Spray (17)
Full ingredient list — Original Curling Custard Natural Styling Gel (12)

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.

VerdictsThickening Therapy SprayOriginal Curling Custard Natural Styling Gel
Supported
3
2
Partly supported
0
0
Stated by brand
1
3
Potential conflict
0
0

Thickening Therapy Spray

  • Clinically proven to increase hair volume by 57% after just one useStated by brandOnly the brand’s testing shows this.
  • Volume lasts all daySupportedLeaves room for lift.
  • Expands each strand for natural-looking bodySupportedLeaves room for lift.
  • No parabens, sulfates, or siliconesSupportedPreserved without parabens.

Original Curling Custard Natural Styling Gel

  • long-lasting curl holdStated by brandCan’t be confirmed from label.
  • defined curls and reduced frizzSupportedSmoother strands, less frizz.
  • brilliant shineStated by brandCan’t be confirmed from label.
  • adjustable control from less product for fullness to more product for controlled curlsStated by brandCan’t be confirmed from label.
  • non-greasy and non-dryingSupportedNothing in it flashes off dry.

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 hold and a clean rinse-out. Bondi Boost Thickening Therapy Spray draws complaints about residue or cast.

Thickening Therapy Spray

Leaves hair feeling soft and swishy rather than stiff or crunchy

Ulta verified reviewer

Delivers noticeable, all-day volume and body without feeling heavy

Ulta verified reviewer, fine/thin hair

Works especially well combined with blow-drying for lift at the root

Ulta verified reviewer

A reformulation left the product feeling tacky and crunchy compared to the original version

Ulta verified reviewer, repeat purchaser

Results vary by hair type -- some with coarser hair saw less dramatic volume than reviewers with fine hair

Ulta reviewers, coarse/thick hair

Original Curling Custard Natural Styling Gel

A reviewer says a little goes a long way and reports bouncy, shiny curls with noticeably less frizz.

sectioned curl styling with an 8 oz jar

A verified purchaser with 3b hair says the custard helps curls last five days or more when paired with the brand's leave-in conditioner.

3b curls paired with a leave-in

A user in Hawaii with very curly, frizz-prone hair finds it resists humid-day frizz, reactivates with water the next morning, and avoids flakes or an overly hard crunch.

very curly hair in high humidity

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.

$2.87/oz vs $7.80/oz — Bondi Boost Thickening Therapy Spray costs about 2.7× more per ounce than Kinky-Curly Original Curling Custard Natural Styling Gel.

Thickening Therapy Spray

Against 66 volumizers with a computable unit price.

Original Curling Custard Natural Styling Gel

Against 159 gels with a computable unit price.

Value readThickening Therapy SprayOriginal Curling Custard Natural Styling Gel
Label
Same job for less elsewhereYou are paying above the range for a formula close to several lower-priced options.
Upper-mid price for a gelSits in the middle of the range for gels per ounce.

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.

Thickening Therapy Spray vs I Create Volume Styling Gel - Orange BlossomInnersense Organic Beauty · 100% function matchOriginal Curling Custard Natural Styling Gel vs Pattern Pusha Hair Styling GelCurl Junkie · 99% function matchThickening Therapy Spray vs Curling JellyAs I Am · 96% function matchOriginal Curling Custard Natural Styling Gel vs Curling JellyAs I Am · 96% function matchThickening Therapy Spray vs Pattern Pusha Hair Styling GelCurl Junkie · 94% function matchOriginal Curling Custard Natural Styling Gel vs I Create Volume Styling Gel - Orange BlossomInnersense Organic Beauty · 93% function matchThickening Therapy Spray vs Curl Defining Gel for Wavy, Curly & Coily Hair with Flaxseed & AloeGinger Milk · 89% function matchOriginal Curling Custard Natural Styling Gel vs Air Dry Volumizing Wave Spray - 5.0 ozJVN · 93% function match

Thickening Therapy Spray · Original Curling Custard Natural Styling Gel · All volumizers 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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