Skip to main content

Side by side

Biolage Ultra Hydra Source Leave-In Cream vs DevaCurl Leave-In Decadence

95% function match · 9 of the 10 functions we compared match Formula overlap 43%. Biolage Ultra Hydra Source Leave-In Cream and DevaCurl Leave-In Decadence 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.

  • Ultra Hydra Source Leave-In Cream — protein-sensitive hair
  • Leave-In Decadence — 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
Biolage Ultra Hydra Source Leave-In Cream — 6.8 oz container Biolage

Ultra Hydra Source Leave-In Cream

  • Leave-in
  • Sulfate-free
  • Silicone-free
DevaCurl Leave-In Decadence — 7.6 oz container DevaCurl

Leave-In Decadence

  • Leave-in
  • Salon
  • Sulfate-free
  • Silicone-free
Price, size & price per ounce
$27–34 6.8 oz · $3.97/oz
$28–29 7.6 oz · $3.68/oz
Value / price positioning
Upper-mid price for a leave-in $$$$$ costs more than 63% of the 481 leave-ins we’ve priced
Upper-mid price for a leave-in $$$$$ Salon tier · costs more than 62% of the 481 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
Wavy–Coily The brand’s own claims name curly or textured hair. 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
Oils and butters Differs
Moderate Oils sit high in the list — a softening, coating formula. Your hair
Low Oils are present, but low enough to be a finishing touch. 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
Present Fragrance is listed; it sits below the working ingredients. Your hair
Present Fragrance is listed; it sits below the working ingredients. Your hair
Protein Same
None No protein or amino acids in the list. 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
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
  • Dry, thirsty hairhumectants and emollients both sit up front
  • Curly-method routinesno sulfates and no water-insoluble silicones
  • 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
  • Very dry or damaged hairit contains fast-drying alcohol
  • Hair that needs proteinthere is none in this list
  • Scents bother youthis product carries a scent
  • Very dry or damaged hairit contains fast-drying alcohol
  • Hair that needs proteinthere is none in this list
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-in
Where to buy
Salons · Brand website
Brand website · Ulta
Free of
  • sulfate-free
  • silicone-free
  • protein-free
  • curly-method compatible
  • sulfate-free
  • silicone-free
  • protein-free
  • curly-method compatible
Cruelty-free
—
Cruelty-free · PETA-listed
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

IngredientUltra Hydra Source Leave-In CreamLeave-In Decadence
Water
Neutral
#1Leading
#1Leading
Glycerin
Moisturizes
#3Leading
#4Supporting
Behentrimonium Chloride
Detangles
#4Supporting
#5Supporting
Fragrance
Fragrance
#13Below the 1% line
#25Below the 1% line
Limonene
Fragrance
#17Below the 1% line
#32Below the 1% line
Cetyl Esters
Softens
#10Below the 1% line
#2Leading
Aloe Barbadensis Leaf Juice
Moisturizes
#16Below the 1% line
#3Leading
Phenoxyethanol
Stabilizes
#9Below the 1% line
#22Below the 1% line
Potassium Sorbate
Stabilizes
#37Below the 1% line
#23Below the 1% line
Sodium Benzoate
Stabilizes
#38Below the 1% line
#24Below the 1% line

What only one of them carries

Ultra Hydra Source Leave-In Cream

Leave-In Decadence

Full ingredient list — Ultra Hydra Source Leave-In Cream (38)
Full ingredient list — Leave-In Decadence (33)

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.

VerdictsUltra Hydra Source Leave-In CreamLeave-In Decadence
Supported
2
3
Partly supported
0
0
Stated by brand
1
2
Potential conflict
0
0

Ultra Hydra Source Leave-In Cream

  • Instantly renews moisture for healthy looking hairSupportedHelps hair feel hydrated.
  • Detangles and controls static for less frizzSupportedEasier detangling, less breakage.
  • Controls flyawaysStated by brandMay help, but not a primary focus.

Leave-In Decadence

  • Quenches dry, coarse curls leaving them nourished and soft with frizz control and shine.SupportedHelps hair feel hydrated.
  • Dermatologist Co-DevelopedStated by brandOnly the brand’s testing shows this.
  • SLS/SLES Sulfates FreeStated by brandCan’t be confirmed from label.
  • Silicone-FreeSupportedNothing that needs a strong wash.
  • Formulated Without ParabensSupportedPreserved without parabens.

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 moisture. Biolage Ultra Hydra Source Leave-In Cream draws complaints about dryness and weight; DevaCurl Leave-In Decadence draws complaints about frizz and the price.

Ultra Hydra Source Leave-In Cream

Moisturizes and softens very dry hair

Ulta exact-product written reviewers

A little goes a long way and detangles

Ulta exact-product written reviewers

Some report crunchy, dry, heavy or greasy feel; cap packaging complaints

Ulta exact-product written reviewers

Leave-In Decadence

Restores softness and bounce to coarse, dry curls after even one use

coarse/dry curl types

A minority of reviewers found it made hair coarse and frizzy rather than smooth

Bottle size felt small relative to price for some reviewers

value-conscious reviewers

Some reviewers report a gummy or sticky residue when applied heavily

reviewers unsure of correct amount to use

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.

$3.68/oz vs $3.97/oz — within about the same cost per ounce.

$0.01/oz median $2.17/oz $76.00/oz $3.97/oz Ultra Hydra Source Leave-I $3.68/oz Leave-In Decadence

Every mark sits on one distribution because these are compared against the same set: 481 leave-ins with a computable unit price.

Value readUltra Hydra Source Leave-In CreamLeave-In Decadence
Label
Upper-mid price for a leave-inSits in the middle of the range for leave-ins per ounce.
Upper-mid price for a leave-inSits in the middle of the range for leave-ins 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.

Ultra Hydra Source Leave-In Cream vs A Curl Can Dream Moisturizing CreamMatrix · 100% function matchLeave-In Decadence vs A Curl Can Dream Moisturizing CreamMatrix · 95% function matchUltra Hydra Source Leave-In Cream vs Frizz Free + Shea Butter Hair Styling Leave-In Conditioning MistMaui Moisture · 95% function matchLeave-In Decadence vs Frizz Free + Shea Butter Hair Styling Leave-In Conditioning MistMaui Moisture · 90% function matchUltra Hydra Source Leave-In Cream vs Texture Series Twist Tamer Leave-In ConditionerHask · 90% function matchLeave-In Decadence vs Texture Series Twist Tamer Leave-In ConditionerHask · 86% function matchUltra Hydra Source Leave-In Cream vs Knots Be Gone Hair DetanglerAlikay Naturals · 88% function matchLeave-In Decadence vs Guava Leave-In ConditionerCeremonia · 86% function match

Ultra Hydra Source Leave-In Cream · Leave-In Decadence · 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.

Still unsure? Take your consultation or browse more products.

Your personalized hair plan

Tell us what’s going on with your hair, see what we understand, and get a plan built around it — with the reason behind every recommendation.

Free to start · $49.00 for your consultation and hair profile · No subscription · Nothing you must buy

Start your consultation