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Side by side

Andalou Naturals Argan Stem Cell Age Defying Scalp Intensive vs CHI Scalp-ology Scalp Scrub

92% function match · 5 of the 6 functions we compared match Formula overlap 39%. Andalou Naturals Argan Stem Cell Age Defying Scalp Intensive and CHI Scalp-ology Scalp Scrub share 4 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.

  • Argan Stem Cell Age Defying Scalp Intensive — vegan and cruelty-free
  • Scalp-ology Scalp Scrub — fragrance-free

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
Andalou Naturals Argan Stem Cell Age Defying Scalp Intensive — 2.1 oz container Andalou Naturals

Argan Stem Cell Age Defying Scalp Intensive

  • Scalp treatment
  • Masstige
CHI Scalp-ology Scalp Scrub — 8 oz container CHI

Scalp-ology Scalp Scrub

  • Scalp treatment
  • Salon
  • Sulfate-free
  • Silicone-free
Price, size & price per ounce
$14.99 2.1 oz · $7.14/oz
$19 8 oz · $2.38/oz

Compared at different sizes — 8 oz against 2.1 oz. Per-ounce prices favour the larger bottle.

Value / price positioning
Priced with its peers $$$$$ Masstige tier · costs less than 51% of the 159 scalp treatments we’ve priced
Lower cost than most scalp treatments $$$$$ Salon tier · costs less than 89% of the 159 scalp treatments 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
High Humectants near the top — water-binding is a headline mechanism here. Your hair
High Humectants near the top — water-binding is a headline mechanism here. Your hair
Slip / detangling Same
Little Nothing here is built to reduce combing force. Your hair
Little Nothing here is built to reduce combing force. Your hair
Fragrance
Present Fragrance is listed; it sits below the working ingredients. Your hair
None listed No fragrance is listed. 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
Weight on hair
—
Light Water-first and light: unlikely to flatten fine hair. Your hair
Protein
—
Minor Protein appears, low enough to be a supporting ingredient. 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
Hard-water defence
—
None No chelating agent in the list. Your hair
Formula completeness
out of 10
A simple formula
out of 10
A simple formula
Who should choose this
  • Vegan and cruelty-freeour researched record has it as both
  • Fragrance-freeno fragrance (parfum) on the label — scented
  • Dry, thirsty hairhumectants and emollients both sit up front
  • Fine hairthat flattens under most products
  • Silicone-free routinesno silicones appear in the list
Why you might skip it
  • Scents bother youthis product carries a scent
  • Dry or very humid airwhere heavy humectants work against you
  • Scents bother youthis product carries a scent
  • Dry or very humid airwhere heavy humectants work against you
  • 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
Scalp treatmentserum
Scalp treatment
Where to buy
Brand website · Grocery / mass
Brand website
Free of
—
  • sulfate-free
  • silicone-free
  • fragrance-free
  • curly-method compatible
Vegan
Vegan · label states
—
Cruelty-free
Cruelty-free · label states
—
Scent
Scented, not described
—
How often
—
weekly

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

IngredientArgan Stem Cell Age Defying Scalp IntensiveScalp-ology Scalp Scrub
Water
Neutral
#1Leading
#7Supporting
Glycerin
Moisturizes
#2Leading
#4Supporting
Panthenol
Detangles
#3Leading
#18Below the 1% line
Aloe Barbadensis Leaf Juice
Moisturizes
#4Supporting
#9Secondary
Phenoxyethanol
Stabilizes
#30Below the 1% line
#21Below the 1% line

What only one of them carries

Argan Stem Cell Age Defying Scalp Intensive

Scalp-ology Scalp Scrub

Full ingredient list — Argan Stem Cell Age Defying Scalp Intensive (35)
Full ingredient list — Scalp-ology Scalp Scrub (28)

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.

VerdictsArgan Stem Cell Age Defying Scalp IntensiveScalp-ology Scalp Scrub
Supported
0
1
Partly supported
0
0
Stated by brand
4
3
Potential conflict
0
0

Argan Stem Cell Age Defying Scalp Intensive

  • Daily scalp serum designed to support hair density for visibly fuller, healthier-looking hair from the rootStated by brandNot something a label can show.
  • Gentle and color safeStated by brandCan’t be confirmed from label.
  • Cruelty-free, vegan, paraben-free, phthalate-free, gluten-free, and formulated with 97% naturally derived ingredientsStated by brandOnly the brand’s testing shows this.
  • Daily: part dry or towel dried hair, apply a few drops to scalp, massage gently; apply again before bedStated by brandCan’t be confirmed from label.

Scalp-ology Scalp Scrub

  • Pre-wash exfoliation treatment designed to support a healthy scalpStated by brandCan’t be confirmed from label.
  • Lifts away flakes, excess oil, buildup, and impuritiesSupportedLeaves room for lift.
  • Clinically proven blend of Salicylic Acid, Undecylenic Acid, and ArginineStated by brandOnly the brand’s testing shows this.
  • Works to balance and protect the scalp from environmental stressorsStated by brandCan’t be confirmed from label.

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.

Argan Stem Cell Age Defying Scalp Intensive

Many reviewers value that the daily application does not leave the scalp or hair feeling greasy or oily, even with twice-daily use.

regular daily users

Reviewers using this daily for thinning hair report visible baby hairs or fuller-looking density after weeks to months of consistent use.

reviewers with thinning hair or hair loss

A recurring complaint is that after a full bottle or more of daily use, some reviewers see no visible change in shedding or density.

users past their first bottle

One reviewer reported the product caused scalp itching that began hours after application and was localized to where it was applied.

one reviewer with a sensitivity reaction

Scalp-ology Scalp Scrub

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.

$2.38/oz vs $7.14/oz — Andalou Naturals Argan Stem Cell Age Defying Scalp Intensive costs about 3× more per ounce than CHI Scalp-ology Scalp Scrub.

$1.25/oz median $7.25/oz $720.34/oz $7.14/oz Argan Stem Cell Age Defyin $2.38/oz Scalp-ology Scalp Scrub

Every mark sits on one distribution because these are compared against the same set: 159 scalp treatments with a computable unit price.

Value readArgan Stem Cell Age Defying Scalp IntensiveScalp-ology Scalp Scrub
Label
Priced with its peersSits in the middle of the range for scalp treatments per ounce.
Lower cost than most scalp treatmentsCosts less per ounce than most scalp treatments 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.

Argan Stem Cell Age Defying Scalp Intensive vs Tripeptide Hair Density SerumCoco & Eve · 96% function matchScalp-ology Scalp Scrub vs Scalp-ology Scalp SerumCHI · 100% function matchArgan Stem Cell Age Defying Scalp Intensive vs Revive+ Densifying Serum for MenBosley · 96% function matchScalp-ology Scalp Scrub vs Hair Renew Daily Active SerumInnersense Organic Beauty · 95% function matchArgan Stem Cell Age Defying Scalp Intensive vs Nourish and Stimulate Scalp MaskMonpure · 92% function matchScalp-ology Scalp Scrub vs Hair Density Scalp TreatmentIGK · 92% function matchArgan Stem Cell Age Defying Scalp Intensive vs Scalp-ology Scalp SerumCHI · 92% function matchScalp-ology Scalp Scrub vs Scalp Care Soothing SerumMizani · 90% function match

Argan Stem Cell Age Defying Scalp Intensive · Scalp-ology Scalp Scrub · All scalp treatments 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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