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Side by side

Biolage Scalp Sync Oil Balancing Serum vs L'Oréal Elvive Glycolic Gloss High Shine Leave-in Serum

73% function match · 7 of the 11 functions we compared match Formula overlap 1%. Biolage Scalp Sync Oil Balancing Serum and L'Oréal Elvive Glycolic Gloss High Shine Leave-in Serum share 1 ingredient 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.

  • Scalp Sync Oil Balancing Serum — protein-sensitive hair
  • Elvive Glycolic Gloss High Shine Leave-in Serum — 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 Scalp Sync Oil Balancing Serum — 1.6 oz container Biolage

Scalp Sync Oil Balancing Serum

  • Finisher
  • Salon
  • Sulfate-free
  • Silicone-free
L'Oréal Elvive Glycolic Gloss High Shine Leave-in Serum — container L'Oréal

Elvive Glycolic Gloss High Shine Leave-in Serum

  • Finisher
  • Drugstore
  • Sulfate-free
  • Silicone-free
Price, size & price per ounce
$25.87 1.6 oz · $17.15/oz
$7.99 4.4 oz · $1.82/oz

Compared at different sizes — 4.4 oz against 1.6 oz. Per-ounce prices favour the larger bottle.

Value / price positioning
Same job for less elsewhere $$$$$ Salon tier · costs more than 83% of the 79 serums we’ve priced
Lower cost than most serums $$$$$ Drugstore tier · costs less than 96% of the 79 serums 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
Moderate Humectants in the working part of the formula. Your hair
Moderate Humectants in the working part of the formula. Your hair
Oils and butters Same
None No oils or butters in the list. Your hair
None No oils or butters in the list. Your hair
Slip / detangling
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 Differs
Light Water-first and light: unlikely to flatten fine hair. Your hair
Medium Middle of the range — noticeable on fine hair, light on coarse hair. Your hair
Fragrance
Prominent Fragrance sits in the first eight ingredients — a larger share of the formula. Your hair
Prominent Fragrance sits in the first eight ingredients — a larger share of the formula. 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 Differs
None Nothing here needs a detergent wash to remove. Your hair
High Water-insoluble silicones or waxes: a detergent wash is what removes them. Your hair
Clarifying wash needed
Low Your hair
Moderate Your hair
Fast-drying alcohol Differs
High in the list Fast-drying alcohol in the first three ingredients. Your hair
Present Fast-drying alcohol is present — it speeds drying and can read dry on the hair. Your hair
Humidity resistance
—
Not claimed No humidity claim on the label. Your hair
Formula completeness
out of 10
A simple formula
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
  • Fine hairthat flattens under most products
  • Silicone-free routinesno silicones appear in the list
  • Protein-sensitive hairthat stiffens when protein is added
  • Maximum slipfor hair that tangles the moment it is wet
  • Silicone-free routinesno silicones appear in the list
  • Aerosol avoidancea pump or tube, not a pressurised can
Why you might skip it
  • Scents bother youthis product carries a scent
  • Very dry or damaged hairit contains fast-drying alcohol
  • Anyone who dislikes a castthe film formers here can set firm
  • Scents bother youthis product carries a scent
  • Very dry or damaged hairit contains fast-drying alcohol
  • Stretching wash dayswaxes stay until a detergent wash removes them
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
Finisherserum
Finisherserum
Where to buy
Salons · Specialty beauty
Target
Free of
  • sulfate-free
  • silicone-free
  • protein-free
  • curly-method compatible
  • sulfate-free
  • silicone-free
  • protein-free
  • curly-method compatible
Vegan
Vegan · label states
—
Cruelty-free
Cruelty-free · label states
—
Scent
Scented, not described
Scented, not described
Humidity claim
—
No
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

IngredientScalp Sync Oil Balancing SerumElvive Glycolic Gloss High Shine Leave-in Serum
Water
Neutral
#1Leading
#1Leading
Polyquaternium-11
Detangles
#7Below the 1% line
#20Below the 1% line
Fragrance
Fragrance
#8Below the 1% line
#3Leading
Limonene
Fragrance
#13Below the 1% line
#22Below the 1% line
Coumarin
Fragrance
#16Below the 1% line
#23Below the 1% line

What only one of them carries

Scalp Sync Oil Balancing Serum

Elvive Glycolic Gloss High Shine Leave-in Serum

Full ingredient list — Scalp Sync Oil Balancing Serum (33)
Full ingredient list — Elvive Glycolic Gloss High Shine Leave-in Serum (23)

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.

VerdictsScalp Sync Oil Balancing SerumElvive Glycolic Gloss High Shine Leave-in Serum
Supported
1
0
Partly supported
0
0
Stated by brand
2
0
Potential conflict
0
0

Scalp Sync Oil Balancing Serum

  • Reduces excess scalp oil in between washesStated by brandCan’t be confirmed from label.
  • Leaves scalp feeling fresh for up to 48 hoursStated by brandCan’t be confirmed from label.
  • Vegan formula: No animal-derived ingredients or byproductsSupportedMatches our researched record.

Elvive Glycolic Gloss High Shine Leave-in Serum

No claims recorded for this product beyond the ones above.

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. L'Oréal Elvive Glycolic Gloss High Shine Leave-in Serum draws complaints about dryness and dullness.

Scalp Sync Oil Balancing Serum

Features convenient dropper dispenser that makes application easy and precise

Users commenting on the product packaging and ease of use during application

Lightweight formula that does not leave hair feeling greasy or weighed down

Users with fine and thin hair appreciating the lightweight texture and lack of residue

Delivers noticeably improved results with visible oil control from the very first use

Users observing immediate effectiveness and results after initial application

Extends the time between washes for people with oily and greasy hair by controlling excess sebum

Users with oily scalp and greasy hair reporting ability to go longer without shampooing after using the serum

Has a pleasant, subtle Biolage-signature fragrance that is not overwhelming

Users appreciating the scent as a positive product attribute

Elvive Glycolic Gloss High Shine Leave-in Serum

Has a pleasant, subtle scent that is not overpowering and does not linger excessively, which reviewers appreciate.

Multiple reviewers mentioned the scent as a positive attribute of the product.

Leaves hair noticeably soft and manageable with improved texture when the product works well for the user's hair type.

Reviewers with wavy or curly hair who found the serum enhanced softness and manageability of their curls.

Delivers exceptional shine and glossiness when applied to wavy, curly, or thick hair types, making the hair look notably lustrous and polished.

Reviewers with naturally wavy or curly hair, as well as those with thicker hair textures.

Can cause dryness, crunchiness, and hair breakage in some users, particularly on color-treated or previously bleached hair.

Reviewers with color-treated blonde hair who experienced significant dryness and breakage after consistent use.

Creates a film-like or straw-like feel on fine and thin-medium hair, leaving strands looking glossy but feeling dull, coarse, or weighted down.

Reviewers with fine, thin, or thin-medium hair types who used the product and found it left an undesirable coating.

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.

$1.82/oz vs $17.15/oz — Biolage Scalp Sync Oil Balancing Serum costs about 9.4× more per ounce than L'Oréal Elvive Glycolic Gloss High Shine Leave-in Serum.

$0.02/oz median $9.41/oz $41.54/oz $17.15/oz Scalp Sync Oil Balancing S $1.82/oz Elvive Glycolic Gloss High

Every mark sits on one distribution because these are compared against the same set: 79 serums with a computable unit price.

Value readScalp Sync Oil Balancing SerumElvive Glycolic Gloss High Shine Leave-in Serum
Label
Same job for less elsewhereYou are paying above the range for a formula close to several lower-priced options.
Lower cost than most serumsCosts less per ounce than most serums 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.

Scalp Sync Oil Balancing Serum vs Well Traveled Tousle and Shine SprayhOURS haircare · 91% function matchElvive Glycolic Gloss High Shine Leave-in Serum vs Bleu Split End Fix SerumR+Co · 87% function matchScalp Sync Oil Balancing Serum vs Abundant & Strong Daily Scalp & Root SerumPantene · 86% function matchElvive Glycolic Gloss High Shine Leave-in Serum vs Blond Absolu Cicanuit SerumKerastase · 77% function matchScalp Sync Oil Balancing Serum vs Blow-Out Creme, Fragrance FreeSEEN · 83% function matchElvive Glycolic Gloss High Shine Leave-in Serum vs Curly Creme, Fragrance FreeSEEN · 73% function matchScalp Sync Oil Balancing Serum vs Argan Oil Anti-Frizz Smoothing SerumSoapbox · 78% function matchElvive Glycolic Gloss High Shine Leave-in Serum vs Argan Oil Anti-Frizz Smoothing SerumSoapbox · 70% function match

Scalp Sync Oil Balancing Serum · Elvive Glycolic Gloss High Shine Leave-in Serum · All serums 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.
  • 7 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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