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Side by side

American Crew Forming Pre-Styling Shampoo vs Ouai Fine Hair Shampoo

93% function match · 9 of the 11 functions we compared match Formula overlap 55%. American Crew Forming Pre-Styling Shampoo and Ouai Fine Hair Shampoo 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.

  • Forming Pre-Styling Shampoo — fast-oiling scalps
  • Fine Hair Shampoo — colour-treated 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 Forming Pre-Styling Shampoo — 8.4 oz container American Crew

Forming Pre-Styling Shampoo

  • Shampoo
  • Masstige
Ouai Fine Hair Shampoo — 10 oz container Ouai

Fine Hair Shampoo

  • Shampoo
  • Masstige
  • Sulfate-free
  • Lightweight
Price, size & price per ounce
$17 8.4 oz · $2.02/oz
$40–44 10 oz · $4.31/oz
Value / price positioning
Upper-mid price for a shampoo $$$$$ Masstige tier · costs more than 62% of the 817 shampoos we’ve priced
Same job for less elsewhere $$$$$ Masstige tier · costs more than 90% of the 817 shampoos we’ve priced
Best for hair types
All types Nothing in the formula or the claims narrows this to one pattern. Your hair
All types Nothing in the formula or the claims narrows this to one pattern. Your hair
Moisture level Differs
Low Humectants appear, but low enough to be a minor part. Your hair
Moderate Humectants in the working part of the formula. Your hair
Cleansing strength Same
Strong Removes oil, buildup, and most residue — a reset wash. Your hair
Strong Removes oil, buildup, and most residue — a reset wash. 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
Fragrance
Prominent Fragrance sits in the first eight ingredients — a larger share of the formula. Your hair
Prominent Fragrance sits in the first eight ingredients — a larger share of the formula. 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
Weight on hair
—
Light Water-first and light: unlikely to flatten fine hair. Your hair
Protein
—
Minor Protein appears, low enough to be a supporting ingredient. Your hair
Expected lather Same
High Thick foam that spreads quickly through the hair. Your hair
High Thick foam that spreads quickly through the hair. Your hair
Scalp active Same
None No over-the-counter scalp active. Your hair
None No over-the-counter scalp active. Your hair
Hard-water defence Same
Chelators present Chelators are present — they bind hard-water and pool minerals. Your hair
Chelators present Chelators are present — they bind hard-water and pool minerals. Your hair
Formula completeness
out of 10
Complete for its job
out of 10
Complete for its job
Who should choose this
  • Fast-oiling scalpsthat need a real reset wash
  • Hard waterand swimmers dealing with mineral deposit
  • Cuticle-smoothing pHa pH adjuster brings it to the acidic range hair prefers
  • Colour-treated hairthat fades faster in a sulfate wash
  • Fast-oiling scalpsthat need a real reset wash
  • Hard waterand swimmers dealing with mineral deposit
  • Fine hairthat flattens under most products
Why you might skip it
  • Scents bother youthis product carries a scent
  • Dry or damaged haira strong detergent system strips as it cleans
  • Stretching wash dayswaxes stay until a detergent wash removes them
  • Scents bother youthis product carries a strong scent
  • Curly-method routinesthese silicones need a detergent to remove
  • Dry or damaged haira strong detergent system strips as it cleans
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
Shampoo
Shampoo
Line
—
OUAI Fine Hair
Where to buy
Brand website
Brand website
Free of
—
  • sulfate-free
Vegan
Vegan · label states
Not vegan · ingredient list
Cruelty-free
—
Cruelty-free · brand states
Scent
Scented, not described
Scented, not described

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

IngredientForming Pre-Styling ShampooFine Hair Shampoo
Water
Neutral
#1Leading
#1Leading
Sodium C14-16 Olefin Sulfonate
Cleanses
#2Leading
#2Leading
Cocamidopropyl Betaine
Cleanses
#3Leading
#3Leading
Fragrance
Fragrance
#6Below the 1% line
#7Below the 1% line
Citric Acid
pH balancer
#8Below the 1% line
#25Below the 1% line
Benzyl Alcohol
Stabilizes
#30Below the 1% line
#31Below the 1% line
Panthenol
Detangles
#18Below the 1% line
#8Below the 1% line
Benzyl Salicylate
Fragrance
#33Below the 1% line
#34Below the 1% line
Limonene
Fragrance
#36Below the 1% line
#35Below the 1% line

What only one of them carries

Forming Pre-Styling Shampoo

Fine Hair Shampoo

Full ingredient list — Forming Pre-Styling Shampoo (38)
Full ingredient list — Fine Hair Shampoo (36)

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.

VerdictsForming Pre-Styling ShampooFine Hair Shampoo
Supported
0
1
Partly supported
1
0
Stated by brand
2
0
Potential conflict
0
0

Forming Pre-Styling Shampoo

  • Formulated as a vegan product without silicones or parabensStated by brandCan’t be confirmed from label.
  • Contains jojoba oil for hydration and frizz preventionPartly supportedSome hydration, at a low level.
  • Balances scalp microbiome while cleansingStated by brandCan’t be confirmed from label.

Fine Hair Shampoo

  • This color-safe shampoo breathes life into fine, flat hair with strengthening keratin, biotin, and nourishing chia seed oilSupportedLess fade per wash.

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.

Forming Pre-Styling Shampoo

Many reviewers, several noting the product was gifted by the brand, say it left hair moisturized and reduced frizz.

Reviewers with curly or wavy hair report the cleanser makes curls more defined and manageable.

Multiple reviewers note a pleasant scent that carries into their subsequent styling routine.

Several reviewers say the shampoo cleanses without stripping natural oils compared to typical shampoos.

Fine Hair Shampoo

Frequently praised for leaving hair feeling clean without stripping or weighing it down

Reviewers with fine/flat hair report noticeably fuller, bouncier hair after use

fine/flat hair

Several reviewers say it cleans the scalp effectively without irritation

scalp-sensitive users

Scent is the single most-mentioned positive, described as strong and pleasant

A minority found the volume boost modest compared to expectations

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.

$2.02/oz vs $4.31/oz — Ouai Fine Hair Shampoo costs about 2.1× more per ounce than American Crew Forming Pre-Styling Shampoo.

$0.00/oz median $1.47/oz $17.29/oz $2.02/oz Forming Pre-Styling Shampo $4.31/oz Fine Hair Shampoo

Every mark sits on one distribution because these are compared against the same set: 817 shampoos with a computable unit price.

Value readForming Pre-Styling ShampooFine Hair Shampoo
Label
Upper-mid price for a shampooSits in the middle of the range for shampoos per ounce.
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.

Forming Pre-Styling Shampoo vs STIMULATE-ME.WASHKevin Murphy · 97% function matchFine Hair Shampoo vs YouthLock Shampoo Formulated With CollagenJoico · 98% function matchForming Pre-Styling Shampoo vs Hair Alchemy Resilience ShampooOribe · 96% function matchFine Hair Shampoo vs Defy Damage Protective ShampooJoico · 98% function matchForming Pre-Styling Shampoo vs Potion Miracle Daily ShampooIt's a 10 · 95% function matchFine Hair Shampoo vs Strictly Curls 3x Moisture ShampooMarc Anthony · 98% function matchForming Pre-Styling Shampoo vs Cantu Weightless Smoothing Hair ShampooCantu · 93% function matchFine Hair Shampoo vs Medium Hair ShampooOuai · 98% function match

Forming Pre-Styling Shampoo · Fine Hair Shampoo · All shampoos 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.
  • 10 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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