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Side by side

Kevin Murphy Shimmer.Shine vs Kevin Murphy Young.Again Oil

60% function match · 7 of the 12 functions we compared match Formula overlap 34%. Kevin Murphy Shimmer.Shine and Kevin Murphy Young.Again Oil share 2 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.

  • Shimmer.Shine — protein-sensitive hair
  • Young.Again Oil — dull-looking 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
Kevin Murphy Shimmer.Shine — 3.4 oz container Kevin Murphy

Shimmer.Shine

  • Finisher
  • Salon
  • Sulfate-free
  • Protein-free
Kevin Murphy Young.Again Oil — 3.4 oz container Kevin Murphy

Young.Again Oil

  • Finisher
  • Prestige
  • Sulfate-free
Price, size & price per ounce
$29–36 3.4 oz · $9.64/oz
$36.74 3.4 oz · $12.94/oz
Value / price positioning
Priced above most shine sprays $$$$$ Salon tier · costs more than 91% of the 65 shine sprays we’ve priced
Upper-mid price for a hair oil $$$$$ Prestige tier · costs more than 63% of the 175 hair oils 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
Shine system Same
High A silicone or oil blend does the shine work here. Your hair
High A silicone or oil blend does the shine work here. Your hair
Slip / detangling
Some Some slip, mostly from esters or silicones rather than conditioners. Your hair
Moderate Conditioning agents are present, lower in the list. 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
Moderate Your hair
Moderate Your hair
Oils and butters Same
Present, lower down Oils are present, but low enough to be a finishing touch. Your hair
Present, lower down Oils are present, but low enough to be a finishing touch. Your hair
Fast-drying alcohol Differs
High in the list Fast-drying alcohol in the first three ingredients. Your hair
None No fast-drying alcohol 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
  • Dull-looking haira recognised shine system is present
  • Aerosol avoidancea pump or tube, not a pressurised can
  • A wide range of haira middle-of-the-range weight
  • Dull-looking haira recognised shine system is present
  • Very dry hairno fast-drying alcohol in the list
  • Sun and colour fadea UV filter is in the list
  • Aerosol avoidancea pump or tube, not a pressurised can
Why you might skip it
  • Scents bother youthis product carries a light 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
  • Tight budgetsit sits in the upper price tiers
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
Finisherspray
Finisheroil
Where to buy
Kevin Murphy · Walmart
Kevin Murphy · Walmart
Free of
  • sulfate-free
  • protein-free
  • sulfate-free
Cruelty-free
Cruelty-free · PETA-listed
Cruelty-free · PETA-listed
Scent
Fresh & airyLight
Scented, not described
Finish
high-shine
shine
How often
as needed
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.

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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

IngredientShimmer.ShineYoung.Again Oil
Cyclopentasiloxane
Buildup
#1Leading
#1Leading

What only one of them carries

Shimmer.Shine

Young.Again Oil

Full ingredient list — Shimmer.Shine (48)
Full ingredient list — Young.Again Oil (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.

VerdictsShimmer.ShineYoung.Again Oil
Supported
2
1
Partly supported
2
3
Stated by brand
1
1
Potential conflict
0
0

Shimmer.Shine

  • adds brilliant, radiant shineSupportedReflects light for visible shine.
  • revives lackluster hairSupportedReflects light for visible shine.
  • adds lightweight moisture and softnessPartly supportedSome hydration, at a low level.
  • uses light-reflective technology for shimmerStated by brandCan’t be confirmed from label.
  • helps nourish and protect hair without oily residuePartly supportedSome hydration, at a low level.

Young.Again Oil

  • nourishes and conditions dry, damaged hairPartly supportedSome hydration, at a low level.
  • leaves hair softer, smoother, and more manageablePartly supportedA little slip, not a lot.
  • adds radiant shineSupportedReflects light for visible shine.
  • helps improve resistance to breakagePartly supportedSupports the surface, not a treatment.
  • provides thermal heat protection up to 450°FStated by brandOnly lab testing can show this.

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, the scent, and shine. Kevin Murphy Shimmer.Shine draws complaints about irritation; Kevin Murphy Young.Again Oil draws complaints about weight and frizz.

Shimmer.Shine

Ellen reports that the mist gives great shine without being heavy or making hair look wet, and describes the fragrance as light and clean.

May 2026 verified Walmart purchaser review

Christine uses the shimmer spray regularly and says it leaves hair soft and healthy with a clean, delightful scent.

June 2025 Walmart customer review

Samantha says the mist makes fine, dry, color-treated hair feel silky smooth and helps tame Florida-humidity frizz, while praising its scent.

June 2025 Walmart customer review

Dorothy says their purchase only smelled good, did not help the hair, and caused scalp itching, making this a clear adverse-use report rather than a performance benefit.

February 2026 verified Walmart purchaser review

Young.Again Oil

Erin H. says the oil leaves their hair looking shiny and healthy, reduces poofiness, and lasts a long time because only a little is needed.

four-month-old written Influenster review

Laura B. says they use the oil on damp hair before styling and on dry hair for extra taming, and report that it leaves dry coarse hair soft and silky without an overpowering scent.

written Influenster review on the exact 100 mL product page

Mariia G. finds the texture rich but too oily and heavy for their long frizzy hair, saying it did not tame frizz enough and left an unpleasant lingering scent.

two-month-old written Influenster review

Tatiana P. likes the luxurious smooth texture and subtle scent, but says a small amount can still make their hair look heavier than preferred and may suit thicker, drier hair better.

six-month-old written Influenster review

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.

$9.64/oz vs $12.94/oz — Kevin Murphy Young.Again Oil costs about 1.3× more per ounce than Kevin Murphy Shimmer.Shine.

Shimmer.Shine

Against 65 shine sprays with a computable unit price.

Young.Again Oil

Against 175 hair oils with a computable unit price.

Value readShimmer.ShineYoung.Again Oil
Label
Priced above most shine spraysCosts more per ounce than most shine sprays; nothing in our library matches it closely for less.
Upper-mid price for a hair oilSits in the middle of the range for hair oils 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.

Shimmer.Shine vs Blond Absolu Cicanuit SerumKerastase · 82% function matchYoung.Again Oil vs Hydrate Glow Catcher Hair Oil For Moisture and ShinePureology · 92% function matchShimmer.Shine vs Oil Reflections Luminous Smoothing OilWella · 72% function matchYoung.Again Oil vs Smoothing Serum (Compare to Paul Mitchell Super Skinny Serum)GVP · 89% function matchShimmer.Shine vs Glossy Shine SprayVerb · 70% function matchYoung.Again Oil vs Dualsenses Just Smooth Taming OilGoldwell · 89% function matchShimmer.Shine vs Shine Flash Glistening MistRedken · 70% function matchYoung.Again Oil vs Caviar Anti-Aging Replenishing Moisture Hair OilAlterna · 88% function match

Shimmer.Shine · Young.Again Oil · All shine sprays 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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