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Side by side

Biolage Smooth Proof Leave-In Conditioning Cream vs Garnier Fructis Grow Strong 10-in-1 Hair Protection Leave-In Treatment

90% function match · 8 of the 10 functions we compared match Formula overlap 92%. Biolage Smooth Proof Leave-In Conditioning Cream and Garnier Fructis Grow Strong 10-in-1 Hair Protection Leave-In Treatment 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
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When each one is the right call

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

  • Smooth Proof Leave-In Conditioning Cream — protein-sensitive hair
  • Grow Strong 10-in-1 Hair Protection Leave-In Treatment — maximum slip

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
Biolage Smooth Proof Leave-In Conditioning Cream — 6.8 oz container Biolage

Smooth Proof Leave-In Conditioning Cream

  • Leave-in
  • Sulfate-free
  • Protein-free
Garnier Fructis Grow Strong 10-in-1 Hair Protection Leave-In Treatment — 12 oz container Garnier Fructis

Grow Strong 10-in-1 Hair Protection Leave-In Treatment

  • Leave-in
  • Drugstore
  • Sulfate-free
Price, size & price per ounce
$27–28 6.8 oz · $3.97/oz
$9.99 12 oz · $0.83/oz
Value / price positioning
Upper-mid price for a leave-in $$$$$ costs more than 64% of the 477 leave-ins we’ve priced
Lower cost than most leave-ins $$$$$ Drugstore tier · costs less than 88% of the 477 leave-ins 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 Same
Low Humectants appear, but low enough to be a minor part. Your hair
Low Humectants appear, but low enough to be a minor part. Your hair
Oils and butters Differs
Low Oils are present, but low enough to be a finishing touch. Your hair
None No oils or butters in the list. 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
Prominent Fragrance sits in the first eight ingredients — a larger share of the formula. Your hair
Protein Differs
None No protein or amino acids in the list. Your hair
Minor Protein appears, low enough to be a supporting ingredient. 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
Formula completeness
out of 10
Complete for its job
out of 10
Complete for its job
Who should choose this
  • Protein-sensitive hairthat stiffens when protein is added
  • Maximum slipfor hair that tangles the moment it is wet
  • Curl definitionfilm formers hold a clump together
  • A wide range of haira middle-of-the-range weight
  • Maximum slipfor hair that tangles the moment it is wet
  • Curl definitionfilm formers hold a clump together
  • Porous, damaged hairceramides are in the list
  • Cuticle-smoothing pHa pH adjuster brings it to the acidic range hair prefers
Why you might skip it
  • Scents bother youthis product carries a scent
  • Curly-method routinesthese silicones need a detergent to remove
  • Very dry or damaged hairit contains fast-drying alcohol
  • Scents bother youthis product carries a scent
  • Curly-method routinesthese silicones need a detergent to remove
  • 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
Leave-incream
Leave-incream
Where to buy
Salons · Brand website
Brand website
Free of
  • sulfate-free
  • protein-free
  • sulfate-free
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

IngredientSmooth Proof Leave-In Conditioning CreamGrow Strong 10-in-1 Hair Protection Leave-In Treatment
Water
Neutral
#1Leading
#1Leading
Cetearyl Alcohol
Softens
#2Leading
#2Leading
Cetyl Esters
Softens
#3Leading
#4Supporting
Amodimethicone
Buildup
#4Supporting
#3Leading
Behentrimonium Chloride
Detangles
#5Supporting
#5Supporting
Phenoxyethanol
Stabilizes
#6Below the 1% line
#26Below the 1% line
Fragrance
Fragrance
#7Below the 1% line
#6Below the 1% line
Isopropyl Alcohol
Drying
#8Below the 1% line
#9Below the 1% line
Limonene
Fragrance
#11Below the 1% line
#18Below the 1% line
Hexyl Cinnamal
Fragrance
#15Below the 1% line
#20Below the 1% line
Linalool
Fragrance
#18Below the 1% line
#16Below the 1% line

What only one of them carries

Smooth Proof Leave-In Conditioning Cream

Grow Strong 10-in-1 Hair Protection Leave-In Treatment

Full ingredient list — Smooth Proof Leave-In Conditioning Cream (25)
Full ingredient list — Grow Strong 10-in-1 Hair Protection Leave-In Treatment (29)

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.

VerdictsSmooth Proof Leave-In Conditioning CreamGrow Strong 10-in-1 Hair Protection Leave-In Treatment
Supported
1
0
Partly supported
0
1
Stated by brand
1
1
Potential conflict
0
0

Smooth Proof Leave-In Conditioning Cream

  • Controls frizz, static, and flyawaysStated by brandMay help, but not a primary focus.
  • Humidity control and smoothness/shine without stickinessSupportedSmoother strands, less frizz.

Grow Strong 10-in-1 Hair Protection Leave-In Treatment

  • Grow Strong 10-in-1 leave-in cream cuts your haircare and styling routine into just one simple stepStated by brandCan’t be confirmed from label.
  • Hair is left moisturized, smooth, and detangledPartly supportedSome hydration, at a low level.

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 slip and frizz control. Biolage Smooth Proof Leave-In Conditioning Cream draws complaints about dryness and the scent; Garnier Fructis Grow Strong 10-in-1 Hair Protection Leave-In Treatment draws complaints about tangling.

Smooth Proof Leave-In Conditioning Cream

Controls humidity/frizz for some users

Ulta exact-product written reviewers

Improves manageability, softness and detangling

Ulta exact-product written reviewers

Some report sticky, crunchy, dry feel or formula/scent change

Ulta exact-product written reviewers

Grow Strong 10-in-1 Hair Protection Leave-In Treatment

Fine or straight-haired users report very soft hair and easy detangling without weigh-down.

Tkg739 and Susan, fine or curly family hair; retailer verified reviews

Fine, long, dry or frizz-prone users report lightweight moisture, softness, fullness, and shine lasting several days.

ErinPeaceJoy, dry dull brown hair; official brand reviewer

Normal-hair reviewers describe the formula as non-heavy, non-sticky, and non-oily.

Rooby, normal hair; official brand reviewer

A reformulation complaint says added silicone weighs hair down and increases tangling versus the older formula.

Rach41886, 35-44, Wallington NJ; official brand 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.

$0.83/oz vs $3.97/oz — Biolage Smooth Proof Leave-In Conditioning Cream costs about 4.8× more per ounce than Garnier Fructis Grow Strong 10-in-1 Hair Protection Leave-In Treatment.

$0.01/oz median $2.17/oz $76.00/oz $3.97/oz Smooth Proof Leave-In Cond $0.83/oz Grow Strong 10-in-1 Hair P

Every mark sits on one distribution because these are compared against the same set: 477 leave-ins with a computable unit price.

Value readSmooth Proof Leave-In Conditioning CreamGrow Strong 10-in-1 Hair Protection Leave-In Treatment
Label
Upper-mid price for a leave-inSits in the middle of the range for leave-ins per ounce.
Lower cost than most leave-insCosts less per ounce than most leave-ins we have researched.

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.

Smooth Proof Leave-In Conditioning Cream vs Glow Mania Glow Sealing Leave-In ConditionerMatrix · 100% function matchGrow Strong 10-in-1 Hair Protection Leave-In Treatment vs Blond Absolu Cicaplasme Thermique Heat Protecting CreamKerastase · 95% function matchSmooth Proof Leave-In Conditioning Cream vs All Soft Moisture Restore Leave-In Treatment with Hyaluronic AcidRedken · 95% function matchGrow Strong 10-in-1 Hair Protection Leave-In Treatment vs Miracle Rescue Instant Repair Leave-On with Melting Pro-V PearlsPantene · 95% function matchSmooth Proof Leave-In Conditioning Cream vs Grow Long Super Fast Strength Leave-in ConditionerMarc Anthony · 95% function matchGrow Strong 10-in-1 Hair Protection Leave-In Treatment vs A Curl Can Dream Scrunch N' Go Defining SprayMatrix · 95% function matchSmooth Proof Leave-In Conditioning Cream vs Miracle Rescue Instant Repair Leave-On with Melting Pro-V PearlsPantene · 95% function matchGrow Strong 10-in-1 Hair Protection Leave-In Treatment vs Sleek & Shine Smooth Leave-In Conditioning CreamGarnier Fructis · 90% function match

Smooth Proof Leave-In Conditioning Cream · Grow Strong 10-in-1 Hair Protection Leave-In Treatment · All leave-ins 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.
  • 9 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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