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Side by side

Biolage Scalp Sync Oil Balancing Serum vs Soapbox Argan Oil Anti-Frizz Smoothing Serum

78% function match · 7 of the 11 functions we compared match Formula overlap 2%. Biolage Scalp Sync Oil Balancing Serum and Soapbox Argan Oil Anti-Frizz Smoothing 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
  • Argan Oil Anti-Frizz Smoothing 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
Soapbox Argan Oil Anti-Frizz Smoothing Serum — container Soapbox

Argan Oil Anti-Frizz Smoothing Serum

  • Finisher
  • Drugstore
  • Sulfate-free
  • Silicone-free
Price, size & price per ounce
$25.87 1.6 oz · $17.15/oz
$10.99 5 oz · $2.20/oz

Compared at different sizes — 5 oz against 1.6 oz. Per-ounce prices favour the larger bottle.

Value / price positioning
Same job for less elsewhere $$$$$ Salon tier · costs more than 83% of the 79 serums we’ve priced
Lower cost than most anti-frizz finishers $$$$$ Drugstore tier · costs less than 91% of the 23 anti-frizz finishers 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 Differs
None No oils or butters in the list. Your hair
Present, lower down Oils are present, but low enough to be a finishing touch. 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 Same
None Nothing here needs a detergent wash to remove. Your hair
None Nothing here needs a detergent wash to remove. Your hair
Clarifying wash needed
Low Your hair
Low Your hair
Shine system
High A silicone or oil blend does the shine work here. 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
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
  • Stretching wash daysnothing here needs a detergent to remove
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
  • 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
Finisherserum
Finisherspray
Where to buy
Salons · Specialty beauty
Beauty supply
Free of
  • sulfate-free
  • silicone-free
  • protein-free
  • curly-method compatible
  • sulfate-free
  • silicone-free
  • protein-free
  • curly-method compatible
Vegan
Vegan · label states
Vegan · brand states
Cruelty-free
Cruelty-free · label states
Cruelty-free · PETA-listed
Scent
Scented, not described
Scented, not described
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 SerumArgan Oil Anti-Frizz Smoothing Serum
Water
Neutral
#1Leading
#1Leading
Fragrance
Fragrance
#8Below the 1% line
#7Below the 1% line
Benzyl Alcohol
Stabilizes
#17Below the 1% line
#6Below the 1% line

What only one of them carries

Full ingredient list — Scalp Sync Oil Balancing Serum (33)
Full ingredient list — Argan Oil Anti-Frizz Smoothing Serum (19)

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 SerumArgan Oil Anti-Frizz Smoothing 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.

Argan Oil Anti-Frizz Smoothing 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.

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

Argan Oil Anti-Frizz Smoothing Serum

No review themes researched for this product yet.

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.

$2.20/oz vs $17.15/oz — Biolage Scalp Sync Oil Balancing Serum costs about 7.8× more per ounce than Soapbox Argan Oil Anti-Frizz Smoothing Serum.

Scalp Sync Oil Balancing Serum

Against 79 serums with a computable unit price.

Argan Oil Anti-Frizz Smoothing Serum

Against 23 anti-frizz finishers with a computable unit price.

Value readScalp Sync Oil Balancing SerumArgan Oil Anti-Frizz Smoothing 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 anti-frizz finishersCosts less per ounce than most anti-frizz finishers 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 · Argan Oil Anti-Frizz Smoothing 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.
  • 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.

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