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Wella

Ultimate Smooth Miracle Hair Oil Serum

Finisher / Serum, glossing

  • Finisher
  • serum
  • Sulfate-free
  • Protein-free
  • Not cruelty-free · PETA-listed
Size3.38 fl oz
Price$50seen at one store · 3.38 oz
Price / oz$14.79/ozat 3.38 oz
Where to buy1 store

Scent:

Notes: amber, citrus, floral.

“Sparkling citruses with a well-known floral heart and a warm ambery base” — Brand page

Manufacturer page: us.wella.professionalstore.com

Personal fit

Is this right for you?

Complete the consultation to see exactly how well this product fits your hair and your goals. With 2,400+ products in our library we can match exactly the right products to you.

  • In 10 minutes we can identify your exact hair condition and traits.
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  • Your goals, scalp, damage history, water, budget, and scent preferences all shape your plan.

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Same job for less elsewhere

$14.79/oz at 3.38 oz — more than 76% of the 77 serums , which mostly run $3.25–14.50/oz.

View alternatives

Great for

Protein-sensitive hairthat stiffens when protein is added
Dull-looking haira recognised shine system is present
Humid climatesthe brand claims humidity resistance
Aerosol avoidancea pump or tube, not a pressurised can
A wide range of haira middle-of-the-range weight
Short ingredient listsfifteen ingredients or fewer

Maybe skip if

this product carries a scent
Curly-method routinesthese silicones need a detergent to remove
Very dry or damaged hairit contains fast-drying alcohol
Vegan and cruelty-freeour record does not support both claims here
Tight budgetsit sits in the upper price tiers
Picking it up locallywe have it recorded in one channel only

Whether a finisher this rich will read as shine or as grease depends on your strand thickness and oil rate — that is what the consultation works out.

What the formula actually does

Read from the label, not the marketing

Each row says where it comes from: F means we derived it from this product’s own ingredient list, S means it is a claim the brand makes that the formula neither confirms nor contradicts.

Shine system Silicone serum

A silicone or oil blend does the shine work here.

Weight on the hair Medium

Middle of the range — noticeable on fine hair, light on coarse hair.

Oils and butters None

No oils or butters in the list.

Humidity resistance Claimed

The brand claims humidity resistance; the ingredient list cannot confirm it.

Needs detergent to remove Yes

Water-insoluble silicones or waxes: a detergent wash is what removes them.

Fast-drying alcohol High in the list

Fast-drying alcohol in the first three ingredients.

Fragrance Prominent

Fragrance sits in the first eight ingredients — a larger share of the formula.

from the formula stated by the brand reported by reviewers Scale: 1 dot low · 5 dots high, within this product type.

Ingredients that matter

The ingredients that change a decision

The workhorse ingredients plus anything lower down that changes a decision. These chips name what an ingredient does — they are not safety scores, and no ingredient here is rated good or bad on its own.

IngredientWhat it doesWhy it mattersChip
Dimethicone silicone The shine system Buildup
Dimethiconol silicone The shine system Buildup
Alcohol Denat. drying alcohol Speeds drying — and can read dry on the hair Drying
FragranceParfum/Fragrance fragrance The scent Fragrance
Tocopheryl Acetate antioxidant Protects the formula Stabilizes
Glyceryl Oleate emulsifier Stabilises the mix Shine
Malic Acid pH adjuster Fine-tunes the pH pH balancer
Limonene fragrance The scent Fragrance
Linalool fragrance The scent Fragrance
What the list leaves out, and what it carriesNo sulfates. Protein-free: this is built for moisture rather than for strengthening. Contains fragrance. The silicones here need a detergent wash to come off.
Full ingredient list (15)

US labelling rules put ingredients above 1% in descending order of amount; below 1% they may be listed in any order. Annotations keep three readings separate: the ingredient's general function, its role in this product type, and what its position can support.

  • 1 Dimethicone
    General function

    The most common conditioning silicone. It coats the strand for shine, slip, and frizz control, and needs a detergent (not just water) to wash out.

    Leading ingredient

    Listed in the first three ingredients, it is likely a structural part of this formula.

    May suitClimate-sensitive or frizz-prone hair

    A surface film slows how quickly humidity reaches the cortex, which is what limits swelling-driven frizz in damp air.

    May suitFrizz-prone, damaged, or high-friction hair

    Lays a smooth film along the cuticle, which lowers combing friction and flattens the surface irregularities that read as frizz.

    May not suitBuild-up-sensitive routines

    Dimethicone does not disperse in water. On a routine that skips detergent it stays on the hair and accumulates wash after wash.

    • silicone
    • emollient
    • conditioning agent
  • 2 Dimethiconol
    General function

    A high-shine silicone often paired with dimethicone for a smoother, glossier finish.

    Leading ingredient

    Listed in the first three ingredients, it is likely a structural part of this formula.

    May suitClimate-sensitive or frizz-prone hair

    A surface film slows how quickly humidity reaches the cortex, which is what limits swelling-driven frizz in damp air.

    May suitFrizz-prone, damaged, or high-friction hair

    Lays a smooth film along the cuticle, which lowers combing friction and flattens the surface irregularities that read as frizz.

    May not suitBuild-up-sensitive routines

    Dimethicone does not disperse in water. On a routine that skips detergent it stays on the hair and accumulates wash after wash.

    PubChem
    • silicone
    • emollient
  • 3 Alcohol Denat.
    General function

    Fast-drying alcohol used to make sprays set quickly. In leave-on products it can leave hair feeling dry, especially in high position on the list.

    Leading ingredient

    Listed in the first three ingredients, it is likely a structural part of this formula.

    May suitFine or easily flattened hair

    Evaporates on contact, which is how a spray sets almost instantly and leaves no weight behind it.

    May not suitDry, coarse, or high-porosity hair

    Porous hair gives water up easily as it is; a fast-evaporating solvent high on the list accelerates that.

    May not suitVery dry or highly damaged hair

    It evaporates quickly and takes some water with it. On hair already short of moisture, a formula built on a lot of it can finish drier than it started.

    PubChem
    • drying alcohol
    • solvent
  • Below about this point, order stops being meaningful — these are typically used at 1% or less.
  • 4 Fragrance · Parfum/Fragrance
    General function

    An undisclosed blend of scent ingredients. Regulations let it stay unlisted, so a fragrance-free product is the only way to be certain what is not in it.

    Estimated lower-concentration zone

    It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.

    May not suitFragrance-sensitive routines

    Declared fragrance. On a fragrance-sensitive routine this is the line that decides it, wherever it sits on the label.

    • fragrance
    • declared fragrance
  • 5 Tocopheryl Acetate
    General function

    A stable form of vitamin E used to keep the oils in a formula from oxidising. It is used at fractions of a percent.

    Estimated lower-concentration zone

    It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.

    PubChem
    • antioxidant
    • vitamin
  • 6 Glyceryl Oleate
    General function

    An emulsifier that also softens, often added to make a cleanser feel less stripping.

    Estimated lower-concentration zone

    It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.

    May suitFrizz-prone, damaged, or high-friction hair

    Emollients fill and smooth the surface of the strand, which lowers the friction that lifts the cuticle and reads as roughness.

    • emulsifier
    • emollient
  • 7 Malic Acid
    General function

    An apple-derived acid used to bring the formula to an acidic pH.

    Estimated lower-concentration zone

    It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.

    DependsFrizz-prone, damaged, or high-friction hair

    pH adjusters are how a formula is brought to a chosen acidity, and an acidic formula keeps the cuticle lying flatter than an alkaline one. Which way this one moves the pH depends on the formula, and the finished pH is not on the label.

    PubChem
    • pH adjuster
    • exfoliant
  • 8 Limonene
    General function

    A citrus-smelling fragrance component that EU rules require to be named separately because some people react to it.

    Estimated lower-concentration zone

    It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.

    May not suitFragrance-sensitive routines

    One of the 26 scent components the EU requires to be named individually above a threshold. It is named because it is a known contact allergen, not because it is unusual.

    PubChem
    • fragrance
    • named fragrance allergen
  • 9 Linalool
    General function

    A floral fragrance component listed separately as a recognised contact allergen.

    Estimated lower-concentration zone

    It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.

    May not suitFragrance-sensitive routines

    One of the 26 scent components the EU requires to be named individually above a threshold. It is named because it is a known contact allergen, not because it is unusual.

    PubChem
    • fragrance
    • named fragrance allergen
  • 10 Oleic Acid
    General function

    The main fatty acid in olive oil, used to soften and to help emulsify.

    Estimated lower-concentration zone

    It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.

    May suitFrizz-prone, damaged, or high-friction hair

    Emollients fill and smooth the surface of the strand, which lowers the friction that lifts the cuticle and reads as roughness.

    • emollient
    • emulsifier
  • 11 Squalane
    General function

    The fully hydrogenated form of squalene, now made from olive or sugarcane rather than shark liver. Hydrogenation is what makes it so slow to oxidise; it spreads very lightly and absorbs without a greasy film.

    Estimated lower-concentration zone

    It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.

    May suitFrizz-prone, damaged, or high-friction hair

    Deposits a lubricating layer that makes combing easier, which is most of what stops mechanical damage adding to frizz.

    PubChem
    • emollient
    • conditioning agent
  • 12 Lecithin
    General function

    A soy- or sunflower-derived lipid that helps conditioning ingredients spread evenly on the strand.

    Estimated lower-concentration zone

    It appears around or below the estimated 1% line, where label order no longer indicates relative amount; its role may be minor or technical.

    May suitFrizz-prone, damaged, or high-friction hair

    Emollients fill and smooth the surface of the strand, which lowers the friction that lifts the cuticle and reads as roughness.

    PubChem
    • emulsifier
    • emollient
  • 13 Ascorbyl Palmitate
    • antioxidant
  • 14 Tocopherol
    • antioxidant
    • vitamin
  • 15 Hydrogenated Palm Glycerides Citrate

What the whole list adds up to

  • 6 emollients
  • 3 fragrances
  • 3 antioxidants
  • 3 emulsifiers
  • 2 silicones
  • 2 conditioning agents
  • 2 vitamins
  • 2 named fragrance allergens
  • 1 drying alcohol
  • 1 solvent
  • 1 declared fragrance
  • 1 pH adjuster
  • 1 exfoliant

Ingredient list captured 2026-09-08. Formulas change — check the package in your hand when an ingredient matters to you.

Price · 3.38 oz

Seen at $50 1 store · checked Sep 8
Good value under $11 Under $3.21/oz it costs less than three-quarters of the 8 products we score as doing the same job

Priced above the products that do the same job. Stores sell it above the $11 line; products that do this job typically go for about $23 at this size.

Show the price ladder
Where we’ve seen it1 listing · 1 store

Sorted by price per ounce. Dated observations from our research, not live prices. Direct store pages, no affiliate links. We don’t sell this product.

How we work this out
  1. 3.38 oz is the size stores list most often; every comparison on this page is made at it. Other sizes are shown in the Sizes row and the store list.
  2. Seen at $50 is the price we have observed for the 3.38 oz. We need three stores before we call a price commonly seen.
  3. Good value under $11 comes from the 8 products we score as doing the same job as this one. A quarter of them cost less than $3.21/oz; at 3.38 oz that is $11. Under that line you are paying less than most of them.
  4. About $23 is what those same products typically cost at this size — the midpoint of their prices per ounce, scaled to 3.38 oz.

Formula

Formula score
8 of 10

The formula carries what a serum is built around, and 5 products we score as close matches cost at least a quarter less per ounce. The difference is buying the label, not a different formula.

How the score is counted
  • 5 products we score as doing the same job cost less per ounce
  • Costs more per ounce than 76% of the 77 serums we’ve priced
  • Covers 4 of the 6 things a serum should do
  • Reviewers mention 2 things they like about how it performs
  • A shine systemThe silicone, oil, or ester that produces gloss.3 pts
  • A weightless carrierDelivers the shine without leaving grease.2 pts
  • Oils or butters in the working zoneSoftens the strand rather than just coating it.2 pts
  • An antioxidantKeeps the oils in the bottle from going off.1 pt
  • No drying alcohol in the first threeFast drying without leading on alcohol.1 pt
  • Fragrance kept out of the top eightScent as a finishing touch, not a major share.1 pt

The formula score is completeness for the job: the share of the systems this product type is normally built around that we can find in this list, weighted. It is not efficacy, not quality, and it never compares across product types.

Does the same job, for less

Same derived functions — what it cleans, conditions, coats or holds — at a lower cost per ounce. Scent, texture and where you buy it can still differ.

Paul MitchellLowest cost per oz Gloss Drops $1.12/oz $13.67/oz less
  • Protein-free
  • Shine
  • Humidity
· Same function
Differs
  • Cruelty-free
  • Vegan
  • Salon tier
Compare
WellaClose function Oil Reflections Luminous Smoothing Oil $5.84/oz $8.95/oz less
  • Protein-free
  • Shine
  • No aerosol
Function
  • Oils and butters
Also
  • 3.4 oz bottle
Compare
RuskClose function Deepshine PlatinumX Shine Spray $3.50/oz $11.29/oz less
  • Shine
Function
  • UV filter
Also
  • Masstige tier
  • 4 oz bottle
Compare

See more alternatives in the product library

These are functional neighbours, not personal recommendations — they are close on formula, not chosen for anyone. Get the one that fits your hair, routine, and budget

Suits every hair pattern

Final decision

Should you buy it?

Similar results available for less
Best user

Hair that stiffens on protein — for a protein-free formula and shine

Biggest tradeoff

Not ideal for anyone sensitive to fragrance, curly-method routines, or very dry or high-damage hair

We do not sell products or take placement fees. This page states what the formula and the prices show; the consultation is what matches it to a person.

Claims check

What the brand says, against what the formula shows

Claims are quoted from the brand. We only mark one supported, partly supported, or conflicting when the ingredient list actually speaks to it; everything else stays "stated by the brand", which is not a criticism — most claims simply cannot be read off a label.

2
SupportedBacked by ingredients
0
Partly supportedSome supporting logic
4
Stated by brandNo clear evidence
0
Potential conflictFormula works against claim
Nourish hair in 30 seconds

Nothing in the list reads as a moisture system.

  • Dimethicone
  • Dimethiconol
  • Glyceryl Oleate
Stated by brand

Can’t be confirmed from label.

Smoothness that lasts up to 3 days

This is a marketing claim; an ingredient list cannot speak to it.

Stated by brand

Can’t be confirmed from label.

Up to 85% smoother hair

A brand-run study. We report it as stated and do not repeat the number as fact.

Stated by brand

Only the brand’s testing shows this.

96 hours frizz control

Silicones or film formers smooth the cuticle, which is the usual mechanism.

  • Dimethicone
  • Dimethiconol
Supported

Smoother strands, less frizz.

UV & Heat protection

Heat protection is a performance claim; an ingredient list cannot confirm it.

  • Dimethicone
  • Dimethiconol
Stated by brand

Only lab testing can show this.

Creates a protective barrier against humidity

Silicones or film formers smooth the cuticle, which is the usual mechanism.

  • Dimethicone
  • Dimethiconol
Supported

Smoother strands, less frizz.

How to read this

We look at the first 10–15 ingredients and what they do in a formula — not marketing. If the list doesn't speak to a claim, we don't assume.

Reviewers

What people report

Recurring themes our researchers wrote in their own words from sourced reviews. We do not store or scrape star ratings.

Reviewers repeatedly describe the serum as lightweight and easily absorbed without leaving hair greasy or oily.

Bazaarvoice reviewers on the Wella Professionals product page

Multiple reviewers credit the serum with adding shine and reducing frizz for a smoother, more polished finish.

Bazaarvoice reviewers on the Wella Professionals product page

Several reviewers note that only a small amount is needed, cautioning that too much can feel heavy, especially on finer or thinner hair.

Bazaarvoice reviewers on the Wella Professionals product page

More from Wella

How this page was made

  • Everything above is generated from our researched product record — identity, the ingredient list as printed, the brand's own claims, dated price observations, and review themes written in our researchers' own words. No part of this page is written per product.
  • 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.
  • Both scores out of ten are defined on this page. The formula score is completeness for the job, computed from a fixed per-format checklist shown beneath the gauge; the price score is cost per ounce against every product of this type we have priced.
  • 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.
  • 4 sources consulted for this product (3 manufacturer or regulatory, 0 retailer, 1 editorial), last checked 2026-09-09.
  • Ingredient references are linked for 7 of 11 product-aware annotations on this page. Fit notes are conditional formulation guidance, not a conclusion about the finished product or about you.
  • We have not tested this product in a lab and we do not physically test your hair. Formula readings come from the ingredient list; behaviour claims are labelled as the brand's.
  • Ingredient order tells you relative amount only above roughly 1%. Prices are observations on the dates shown and change without notice.
  • Ingredient names link to our ingredient library, where each entry shows what it does, which product types use it, and where it usually sits on a label across everything we have researched.
  • This is cosmetic information, not medical advice, and nothing here diagnoses or treats a health condition.
  • Formula readings: derivation v22. Record last updated 2026-09-09.