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Side by side

KRISTIN ESS HAIR Kristin Ess+ Peptide Boost Volumizing Serum Spray vs Rizos Curls Curl Defining Cream - 10.0 oz

81% function match · 9 of the 13 functions we compared match Formula overlap 32%. KRISTIN ESS HAIR Kristin Ess+ Peptide Boost Volumizing Serum Spray and Rizos Curls Curl Defining Cream - 10.0 oz share 3 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
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When each one is the right call

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

  • Kristin Ess+ Peptide Boost Volumizing Serum Spray — maximum slip
  • Curl Defining Cream - 10.0 oz — 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
KRISTIN ESS HAIR Kristin Ess+ Peptide Boost Volumizing Serum Spray — 5.5 oz container KRISTIN ESS HAIR

Kristin Ess+ Peptide Boost Volumizing Serum Spray

  • Styler
  • Masstige
  • Sulfate-free
  • Silicone-free
Rizos Curls Curl Defining Cream - 10.0 oz — 10 oz container Rizos Curls

Curl Defining Cream - 10.0 oz

  • Styler
  • Masstige
  • Sulfate-free
  • Silicone-free
Price, size & price per ounce
$16.99 5.5 oz · $3.09/oz
$22.99 10 oz · $2.50/oz
Value / price positioning
Priced with its peers $$$$$ Masstige tier · costs less than 71% of the 64 volumizers we’ve priced
Upper-mid price for a curl cream $$$$$ Masstige tier · costs more than 55% of the 105 curl creams we’ve priced
Best for hair types
All types Nothing in the formula or the claims narrows this to one pattern. Your hair
Wavy–Coily Co-washes, curl creams, and gels are built around wave and curl. Your hair
Moisture level Same
Moderate Humectants in the working part of the formula. Your hair
Moderate Humectants in the working part of the formula. Your hair
Hold system Same
Moderate Gums and synthetic polymers together. Your hair
Moderate Gums and synthetic polymers together. Your hair
Slip / detangling Same
High Conditioning agents sit high in the list — this is a detangling formula. Your hair
High Conditioning agents sit high in the list — this is a detangling formula. Your hair
Weight on hair Same
Medium Middle of the range — noticeable on fine hair, light on coarse hair. Your hair
Medium Middle of the range — noticeable on fine hair, light on coarse 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
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 Differs
None No absorbent powders or starches. Your hair
Some Absorbents appear, low in the list. Your hair
Oils and butters Differs
Present, lower down Oils are present, but low enough to be a finishing touch. Your hair
Present, high in the list Oils sit high in the list — a softening, coating formula. 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
  • Maximum slipfor hair that tangles the moment it is wet
  • Dry, thirsty hairhumectants and emollients both sit up front
  • Curly-method routinesno sulfates and no water-insoluble silicones
  • Curl definitionfilm formers hold a clump together
  • Protein-sensitive hairthat stiffens when protein is added
  • Maximum slipfor hair that tangles the moment it is wet
  • Dry, thirsty hairhumectants and emollients both sit up front
  • Curly-method routinesno sulfates and no water-insoluble silicones
Why you might skip it
  • Scents bother youthis product carries a scent
  • Stretching wash dayswaxes stay until a detergent wash removes them
  • Scents bother youthis product carries a scent
  • Stretching wash dayswaxes stay until a detergent wash removes them
  • 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
Stylercream
Where to buy
Grocery / mass · Specialty beauty
Ulta
Free of
  • sulfate-free
  • silicone-free
  • curly-method compatible
  • sulfate-free
  • silicone-free
  • protein-free
  • curly-method compatible
Vegan
—
Not vegan · label states
Cruelty-free
Cruelty-free · PETA-listed
Cruelty-free · PETA-listed
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

IngredientKristin Ess+ Peptide Boost Volumizing Serum SprayCurl Defining Cream - 10.0 oz
Water
Neutral
#1Leading
#1Leading
Cetearyl Alcohol
Softens
#2Leading
#3Leading
Fragrance
Fragrance
#3Leading
#9Below the 1% line
Phenoxyethanol
Stabilizes
#5Below the 1% line
#21Below the 1% line
Glycerin
Moisturizes
#19Below the 1% line
#8Supporting
Ethylhexylglycerin
Softens
#15Below the 1% line
#20Below the 1% line

What only one of them carries

Kristin Ess+ Peptide Boost Volumizing Serum Spray

Curl Defining Cream - 10.0 oz

Full ingredient list — Kristin Ess+ Peptide Boost Volumizing Serum Spray (40)
Full ingredient list — Curl Defining Cream - 10.0 oz (21)

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.

VerdictsKristin Ess+ Peptide Boost Volumizing Serum SprayCurl Defining Cream - 10.0 oz
Supported
1
2
Partly supported
1
0
Stated by brand
3
1
Potential conflict
0
0

Kristin Ess+ Peptide Boost Volumizing Serum Spray

  • 48 hours of lift + fullnessPartly supportedNeutral on lift.
  • Instantly plumps hairStated by brandCan’t be confirmed from label.
  • Delivers thicker-looking resultsStated by brandCan’t be confirmed from label.
  • Heat protection up to 450FStated by brandOnly lab testing can show this.
  • Color and keratin safeSupportedThe named ingredient is really there.

Curl Defining Cream - 10.0 oz

  • define & hold curls, without leaving hair crunchySupportedNatural movement without stiffness.
  • 97% naturally derivedStated by brandOnly the brand’s testing shows this.
  • free of silicones, sulfates, parabensSupportedGentler on colour and coils.

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 volume. KRISTIN ESS HAIR Kristin Ess+ Peptide Boost Volumizing Serum Spray draws complaints about residue or cast and volume; Rizos Curls Curl Defining Cream - 10.0 oz draws complaints about dryness and curl definition.

Kristin Ess+ Peptide Boost Volumizing Serum Spray

Reviewers with fine or thin hair often say it adds noticeable root lift and volume without weighing hair down.

reviewers with fine or thin hair

Several reviewers like that it doubles as a heat protectant they use right before blow-drying.

general reviewers

Some reviewers with fine hair say the product leaves a sticky or greasy residue that makes them wash their hair sooner than usual.

reviewers with fine hair

Multiple reviewers say the added volume is short-lived and mostly fades within the first hour or by the next day.

general reviewers

A common complaint is that the spray nozzle clogs or malfunctions, shooting product in an uneven stream instead of a fine mist.

general reviewers

Curl Defining Cream - 10.0 oz

Defines curls exactly as promised, without leaving hair crunchy

5-star Ulta reviewer

Gives thinning, short hair body and lift on top without feeling stiff to the touch

5-star Ulta reviewer

Too heavy for low-porosity hair and in summer heat; recommends using sparingly or skipping for that hair type

2-star Ulta reviewer

Dragged curls down with no definition, and hair felt dry when combined with the matching mousse

2-star Ulta reviewer

Was excited to try it but ultimately let down -- did not work out for her hair

1-star Ulta reviewer

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.

$2.50/oz vs $3.09/oz — KRISTIN ESS HAIR Kristin Ess+ Peptide Boost Volumizing Serum Spray costs about 1.2× more per ounce than Rizos Curls Curl Defining Cream - 10.0 oz.

Kristin Ess+ Peptide Boost Volumizing Serum Spray

Against 64 volumizers with a computable unit price.

Curl Defining Cream - 10.0 oz

Against 105 curl creams with a computable unit price.

Value readKristin Ess+ Peptide Boost Volumizing Serum SprayCurl Defining Cream - 10.0 oz
Label
Priced with its peersSits in the middle of the range for volumizers per ounce.
Upper-mid price for a curl creamSits in the middle of the range for curl creams 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.

Kristin Ess+ Peptide Boost Volumizing Serum Spray vs Coily Miracle Curl Cream For Bouncy Curls - 2.0 ozIt's A 10 · 93% function matchCurl Defining Cream - 10.0 oz vs Refresh & Detangle SprayRizos Curls · 96% function matchKristin Ess+ Peptide Boost Volumizing Serum Spray vs Surfer Hair Styling Power PasteGarnier Fructis · 89% function matchCurl Defining Cream - 10.0 oz vs Sumoclay Matte Texture ClayBumble and bumble · 85% function matchKristin Ess+ Peptide Boost Volumizing Serum Spray vs Brews Texture PomadeRedken · 81% function matchCurl Defining Cream - 10.0 oz vs Edge ControlPATTERN · 85% function matchKristin Ess+ Peptide Boost Volumizing Serum Spray vs Pomegranate & Honey Curl Defining Mousse with HoldMielle · 81% function matchCurl Defining Cream - 10.0 oz vs Finishing PasteTricoci · 85% function match

Kristin Ess+ Peptide Boost Volumizing Serum Spray · Curl Defining Cream - 10.0 oz · 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.
  • 8 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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