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Side by side

American Crew Alternator Finishing Spray vs American Crew Defining Paste

39% function match · 2 of the 8 functions we compared match Formula overlap 0%. American Crew Alternator Finishing Spray and American Crew Defining Paste 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.

  • Defining Paste — 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
American Crew Defining Paste — 3 oz container American Crew

Defining Paste

  • Styler
  • Masstige
  • Sulfate-free
  • Silicone-free
Price, size & price per ounce
$14.95 3.3 oz · $5.07/oz
$18–21 3 oz · $6.13/oz
Value / price positioning
Same job for less elsewhere $$$$$ Masstige tier · costs more than 83% of the 96 hairsprays we’ve priced
Priced with its peers $$$$$ Masstige tier · costs less than 70% of the 90 pastes we’ve priced
Best for hair types
All types Nothing in the formula or the claims narrows this to one pattern. Your hair
Curly–Coily A heavy formula: coarse, curlier strands carry it without flattening. Your hair
Moisture level Same
High Humectants near the top — water-binding is a headline mechanism here. Your hair
High Humectants near the top — water-binding is a headline mechanism here. Your hair
Hold (as stated)
Medium A medium hold, as stated by the brand. Your hair
Medium A medium hold, as stated by the brand. Your hair
Slip / detangling Differs
Little Nothing here is built to reduce combing force. Your hair
Some Some slip, mostly from esters or silicones rather than conditioners. Your hair
Fragrance
Present Fragrance is listed; it sits below the working ingredients. Your hair
Present Fragrance is listed; it sits below the working ingredients. Your hair
Silicone / wax buildup Differs
None Nothing here needs a detergent wash to remove. Your hair
High Water-insoluble silicones or waxes: a detergent wash is what removes them. Your hair
Clarifying wash needed
Low Your hair
Moderate Your hair
Weight on hair
Rich Heavy butters and waxes in the first eight ingredients. Your hair
Protein
None No protein or amino acids in the list. Your hair
Hold system Differs
None found No hold polymer, gum, or wax found in the list. Your hair
Mixed Gums and synthetic polymers together. 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 Same
None No oils or butters in the list. Your hair
None No oils or butters in the list. Your hair
Fast-drying alcohol Differs
High in the list Fast-drying alcohol in the first three ingredients. Your hair
Present Fast-drying alcohol is present — it speeds drying and can read dry on the hair. Your hair
Cast risk
Unlikely Softening ingredients sit alongside the film formers, so a hard shell is unlikely. Your hair
Formula completeness
out of 10
A simple formula
out of 10
Complete for its job
Who should choose this
  • Protein-sensitive hairthat stiffens when protein is added
  • 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
Why you might skip it
  • Scents bother youthis product carries a scent
  • Very dry or damaged hairit contains fast-drying alcohol
  • Styles that must holdno hold polymer, gum, or wax was found
  • Scents bother youthis product carries a strong scent
  • Oily scalp or fine hairthat gets weighed down
  • Very dry or damaged hairit contains fast-drying alcohol
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
Stylerpaste
Where to buy
Brand website
Ulta · Brand website
Free of
  • sulfate-free
  • silicone-free
  • protein-free
  • curly-method compatible
Scent
Scented, not described
Scented, not described
Hold
medium
mediumMedium hold
Finish
natural
matte
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

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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

IngredientAlternator Finishing SprayDefining Paste
Alcohol Denat.
Drying
#4Supporting
#10Secondary
Water
Neutral
#2Leading
#1Leading
Fragrance
Fragrance
#10Below the 1% line
#24Below the 1% line
Linalool
Fragrance
#11Below the 1% line
#28Below the 1% line
Limonene
Fragrance
#12Below the 1% line
#27Below the 1% line

What only one of them carries

Alternator Finishing Spray

  • Peg-32
  • PEG-6
  • Dimethyl Acrylamide/Hydroxyethyl Acrylate/Methoxyethyl Acrylate Copolymer
  • AMP-Acrylates/C1-18 Alkyl Acrylate/C1-8 Alkyl Acrylamide Copolymer
  • Butylene Glycol
  • Hexyl Cinnamal

Defining Paste

Full ingredient list — Alternator Finishing Spray (18)
  • 1 Alcohol Denat.
    • drying alcohol
    • solvent
  • 2 Water
    • solvent
  • 3 Peg-32
    • humectant
    • solvent
  • 4 Alcohol Denat.
    • drying alcohol
    • solvent
  • 5 PEG-6
  • 6 Dimethyl Acrylamide/Hydroxyethyl Acrylate/Methoxyethyl Acrylate Copolymer
  • 7 AMP-Acrylates/C1-18 Alkyl Acrylate/C1-8 Alkyl Acrylamide Copolymer
  • 8 Butylene Glycol
    • humectant
    • solvent
  • Below about this point, order stops being meaningful — these are typically used at 1% or less.
  • 9 Citric Acid
    • pH adjuster
    • hard-water chelator
  • 10 Fragrance
    • fragrance
    • declared fragrance
  • 11 Linalool
    • fragrance
    • named fragrance allergen
  • 12 Limonene
    • fragrance
    • named fragrance allergen
  • 13 Hexyl Cinnamal
    • fragrance
    • named fragrance allergen
  • 14 Benzyl Salicylate
    • fragrance
    • named fragrance allergen
  • 15 Alpha-Isomethyl Ionone
    • fragrance
    • named fragrance allergen
  • 16 Citronellol
    • fragrance
    • named fragrance allergen
  • 17 Hydroxycitronellal
    • fragrance
    • named fragrance allergen
  • 18 Geraniol
    • fragrance
    • named fragrance allergen
Full ingredient list — Defining Paste (38)

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.

VerdictsAlternator Finishing SprayDefining Paste
Supported
0
2
Partly supported
0
1
Stated by brand
3
0
Potential conflict
1
0

Alternator Finishing Spray

  • Provides flexible styling and restyling powerStated by brandCan’t be confirmed from label.
  • Makes re-shapeable hair styling possible with the use of your handsStated by brandCan’t be confirmed from label.
  • Non-tacky feel and easy to remove with shampooStated by brandCan’t be confirmed from label.
  • Provides a natural look with medium hold and medium shinePotential conflictNothing in it holds a shape.

Defining Paste

  • Medium holdSupportedStructure that lasts the day.
  • Low shine / matte finishPartly supportedA hint of gloss.
  • Adds texture or increased definitionSupportedHolds a clump together.

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. American Crew Defining Paste draws complaints about frizz.

Alternator Finishing Spray

Several reviewers report it dries quickly, feels lightweight and leaves a noticeable pleasant scent without a sticky or crunchy finish.

general users

Curly and coily-haired reviewers describe strong hold from this spray, with one saying it works especially well on coily texture.

curly/coily hair reviewers

One long-time user felt the formula was changed and no longer holds the way it used to.

a long-time repeat buyer

A few reviewers use it as a light touch-up or base layer alongside other American Crew styling products rather than as a stand-alone hold product.

men using it in a multi-product routine

Defining Paste

Consistently works on thick, hard-to-style hair where other pastes have failed.

5-star Ulta reviewer describing years of use on a partner's thick hair

Builds texture and hold without leaving visible product buildup, for a natural look.

4-star Ulta reviewer

A little goes a long way — one fingertip amount lasts all day and the tub lasts a very long time despite the price.

5-star Ulta reviewer weighing cost against longevity

Needed an unusually large amount to work and it made hair look dirty; didn't control frizz as advertised.

1-star Ulta reviewer

Scent is strong and lingers through the day; product needs to be warmed between palms first or it leaves white clumps.

4-star Ulta reviewer noting application quirks

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.

$5.07/oz vs $6.13/oz — American Crew Defining Paste costs about 1.2× more per ounce than American Crew Alternator Finishing Spray.

Alternator Finishing Spray

Against 96 hairsprays with a computable unit price.

Defining Paste

Against 90 pastes with a computable unit price.

Value readAlternator Finishing SprayDefining Paste
Label
Same job for less elsewhereYou are paying above the range for a formula close to several lower-priced options.
Priced with its peersSits in the middle of the range for pastes 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.

Alternator Finishing Spray · Defining Paste · All hairsprays 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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