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Side by side

Kevin Murphy YOUNG.AGAIN.RINSE vs Pureology Smooth Perfection Conditioner

95% function match · 9 of the 10 functions we compared match Formula overlap 48%. Kevin Murphy YOUNG.AGAIN.RINSE and Pureology Smooth Perfection Conditioner 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
  • Your answers appear here

When each one is the right call

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

  • YOUNG.AGAIN.RINSE — protein-sensitive hair
  • Smooth Perfection Conditioner — 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
Kevin Murphy YOUNG.AGAIN.RINSE — 8.45 oz container Kevin Murphy

YOUNG.AGAIN.RINSE

  • Conditioner
  • Prestige
  • Sulfate-free
  • Protein-free
Pureology Smooth Perfection Conditioner — 9 oz container Pureology

Smooth Perfection Conditioner

  • Conditioner
  • Salon
  • Sulfate-free
  • Moisture-rich
Price, size & price per ounce
$49 8.45 oz · $5.80/oz
$44.39 9 oz · $4.93/oz
Value / price positioning
Same job for less elsewhere $$$$$ Prestige tier · costs more than 94% of the 689 conditioners we’ve priced
Same job for less elsewhere $$$$$ Salon tier · costs more than 90% of the 689 conditioners 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
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 Same
Low Oils are present, but low enough to be a finishing touch. 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 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
High Your hair
High Your hair
Hard-water defence Same
None No chelating agent in the list. Your hair
None No chelating agent 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
  • 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
  • Sun and colour fadea UV filter is in the list
  • Maximum slipfor hair that tangles the moment it is wet
  • Dry, thirsty hairhumectants and emollients both sit up front
  • Sun and colour fadea UV filter is 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
Conditioner
Conditioner
Line
Young.Again
—
Where to buy
Brand website · Specialty beauty
Salons · Walmart · Grocery / mass
Free of
  • sulfate-free
  • protein-free
  • sulfate-free
Vegan
—
Vegan · label states
Cruelty-free
Cruelty-free · PETA-listed
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

IngredientYOUNG.AGAIN.RINSESmooth Perfection Conditioner
Water
Neutral
#1Leading
#1Leading
Cetearyl Alcohol
Softens
#2Leading
#2Leading
Behentrimonium Chloride
Detangles
#4Supporting
#4Supporting
Tocopherol
Stabilizes
#7Below the 1% line
#15Below the 1% line
Isopropyl Alcohol
Drying
#30Below the 1% line
#11Below the 1% line
Glycerin
Moisturizes
#27Below the 1% line
#3Leading
Fragrance
Fragrance
#52Below the 1% line
#9Below the 1% line

What only one of them carries

YOUNG.AGAIN.RINSE

Smooth Perfection Conditioner

Full ingredient list — YOUNG.AGAIN.RINSE (55)
Full ingredient list — Smooth Perfection Conditioner (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.

VerdictsYOUNG.AGAIN.RINSESmooth Perfection Conditioner
Supported
1
3
Partly supported
0
0
Stated by brand
2
0
Potential conflict
0
0

YOUNG.AGAIN.RINSE

  • Treat your hair to the feeling of youthStated by brandCan’t be confirmed from label.
  • Helps restore youthful lustre to dry, brittle or damaged hairSupportedReflects light for visible shine.
  • Leaving the hair looking and feeling young againStated by brandCan’t be confirmed from label.

Smooth Perfection Conditioner

  • Smooths hair and lessens frizzSupportedSmoother strands, less frizz.
  • Restores manageability for frizz-prone color-treated hairSupportedLess fade per wash.
  • Vegan ZeroSulfate formulaSupportedMatches our researched record.

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 the scent. Pureology Smooth Perfection Conditioner draws complaints about weight and the packaging.

YOUNG.AGAIN.RINSE

Best conditioner tried for color-treated hair

color-treated hair

Works well paired with Young Again shampoo; pleasant fragrance, improved shine, less breakage, more fullness

uses full Young Again line

Restores shine and flexibility to bleached/toned hair damaged by repeated at-home color processing

home bleach/tone routine, brittle strands concern

Smooth Perfection Conditioner

Pleasant scent and small amount goes a long way

Exact Walmart 9 oz UPC 884486437082 listing; 325 written reviews

Controls frizz in humidity and keeps hair sleek

Exact Walmart 9 oz UPC 884486437082 listing; 325 written reviews

Leaves hair soft, smooth and manageable

Exact Walmart 9 oz UPC 884486437082 listing; 325 written reviews

Can feel heavy on fine hair or packaging is difficult

Exact Walmart 9 oz UPC 884486437082 listing; 325 written reviews

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.

$4.93/oz vs $5.80/oz — Kevin Murphy YOUNG.AGAIN.RINSE costs about 1.2× more per ounce than Pureology Smooth Perfection Conditioner.

$0.09/oz median $1.60/oz $56.25/oz $5.80/oz YOUNG.AGAIN.RINSE $4.93/oz Smooth Perfection Conditio

Every mark sits on one distribution because these are compared against the same set: 689 conditioners with a computable unit price.

Value readYOUNG.AGAIN.RINSESmooth Perfection Conditioner
Label
Same job for less elsewhereYou are paying above the range for a formula close to several lower-priced options.
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.

YOUNG.AGAIN.RINSE vs Mega Sleek Anti-Frizz ConditionerMatrix · 98% function matchSmooth Perfection Conditioner vs REPAIR-ME.RINSEKevin Murphy · 98% function matchYOUNG.AGAIN.RINSE vs Mega Sleek Smoothing ConditionerMatrix · 98% function matchSmooth Perfection Conditioner vs Argan Oil from Morocco Intensive Conditioning TreatmentCreme of Nature · 98% function matchYOUNG.AGAIN.RINSE vs Food For Soft Hydrating Conditioner for Dry & Brittle HairMatrix · 98% function matchSmooth Perfection Conditioner vs BioSilk Color Therapy ConditionerCHI · 95% function matchYOUNG.AGAIN.RINSE vs Goddess Strength Fortifying Conditioner With Castor OilCarol's Daughter · 98% function matchSmooth Perfection Conditioner vs Silk Express Miracle ConditionerIt's a 10 · 95% function match

YOUNG.AGAIN.RINSE · Smooth Perfection Conditioner · All conditioners 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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