Skip to main content

Side by side

Kevin Murphy Shimmer.Shine vs ORS Olive Oil Thermalast Heat Protection Serum

68% function match · 6 of the 9 functions we compared match Formula overlap 40%. Kevin Murphy Shimmer.Shine and ORS Olive Oil Thermalast Heat Protection Serum share 1 ingredient among each other's most prominent.

These sit in different steps of a routine — Kevin Murphy Shimmer.Shine is a finisher and ORS Olive Oil Thermalast Heat Protection Serum is a heat protectant. Comparing their formulas is fair; treating one as a replacement for the other is not.

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
  • Olive Oil Thermalast Heat Protection Serum — heat styling

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
ORS Olive Oil Thermalast Heat Protection Serum — 6 oz container ORS

Olive Oil Thermalast Heat Protection Serum

  • Heat protectant
  • Drugstore
  • Sulfate-free
  • Protein-free
Price, size & price per ounce
$29–36 3.4 oz · $9.64/oz
$8–10 6 oz · $1.33/oz
Value / price positioning
Priced above most shine sprays $$$$$ Salon tier · costs more than 91% of the 65 shine sprays we’ve priced
Lower cost than most heat protectants $$$$$ Drugstore tier · costs less than 94% of the 574 heat protectants we’ve priced
Best for hair types
All types Nothing in the formula or the claims narrows this to one pattern. Your hair
Straight–Curly Smoothing and thermal products span straight through curly hair. Your hair
Moisture level Differs
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
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
Some Some slip, mostly from esters or silicones rather than conditioners. 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
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
Heat protection
—
Moderate Sold as a heat protectant; no temperature is stated. Your hair
Oils and butters Same
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
Covers the core
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
  • Heat stylingthe brand positions this as a heat protectant
  • Protein-sensitive hairthat stiffens when protein is added
  • Very dry hairno fast-drying alcohol in the list
  • A wide range of haira middle-of-the-range weight
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
  • Picking it up locallywe have it recorded in one channel only
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
Heat protectantserum
Where to buy
Kevin Murphy · Walmart
Brand website
Free of
  • sulfate-free
  • protein-free
  • sulfate-free
  • protein-free
Cruelty-free
Cruelty-free · PETA-listed
Cruelty-free · PETA-listed
Scent
Fresh & airyLight
Scented, not described
Finish
high-shine
—
Heat protection
—
Claimed, no temperature stated
How often
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.

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

IngredientShimmer.ShineOlive Oil Thermalast Heat Protection Serum
Cyclopentasiloxane
Buildup
#1Leading
#5Supporting
Fragrance
Fragrance
#41Below the 1% line
#13Below the 1% line

What only one of them carries

Shimmer.Shine

Olive Oil Thermalast Heat Protection Serum

Full ingredient list — Shimmer.Shine (48)
Full ingredient list — Olive Oil Thermalast Heat Protection Serum (14)

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.ShineOlive Oil Thermalast Heat Protection Serum
Supported
2
1
Partly supported
2
1
Stated by brand
1
2
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.

Olive Oil Thermalast Heat Protection Serum

  • Minimizes heat damage during the styling processStated by brandCan’t be confirmed from label.
  • Enhances the thermal straightening processStated by brandCan’t be confirmed from label.
  • Seals in moisture and shinePartly supportedSome hydration, at a low level.
  • Leaves hair silky and smoothSupportedSmoother strands, less frizz.

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, a light feel, and shine. Kevin Murphy Shimmer.Shine draws complaints about the scent and irritation; ORS Olive Oil Thermalast Heat Protection Serum draws complaints about the packaging.

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

Olive Oil Thermalast Heat Protection Serum

Effective heat protection for blow-drying and flat-ironing, achieves salon-smooth press results

Leaves hair smooth, shiny, and holds style longer without heaviness

Shipping/packaging issue — bottle arrived leaking, product wasted

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.

$1.33/oz vs $9.64/oz — Kevin Murphy Shimmer.Shine costs about 7.2× more per ounce than ORS Olive Oil Thermalast Heat Protection Serum.

Shimmer.Shine

Against 65 shine sprays with a computable unit price.

Olive Oil Thermalast Heat Protection Serum

Against 574 heat protectants with a computable unit price.

Value readShimmer.ShineOlive Oil Thermalast Heat Protection Serum
Label
Priced above most shine spraysCosts more per ounce than most shine sprays; nothing in our library matches it closely for less.
Lower cost than most heat protectantsCosts less per ounce than most heat protectants 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.

Shimmer.Shine vs Blond Absolu Cicanuit SerumKerastase · 82% function matchOlive Oil Thermalast Heat Protection Serum vs Sleek & Shine Sleek & Stay Heat-Activated SerumGarnier Fructis · 95% function matchShimmer.Shine vs Oil Reflections Luminous Smoothing OilWella · 72% function matchOlive Oil Thermalast Heat Protection Serum vs Mega Sleek 96H Anti-Frizz TopcoatMatrix · 95% function matchShimmer.Shine vs Glossy Shine SprayVerb · 70% function matchOlive Oil Thermalast Heat Protection Serum vs Humidity-Defying Serumion · 95% function matchShimmer.Shine vs Shine Flash Glistening MistRedken · 70% function matchOlive Oil Thermalast Heat Protection Serum vs Hair Polish Shine MistDoo Gro · 95% function match

Shimmer.Shine · Olive Oil Thermalast Heat Protection Serum · 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.
  • 6 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