Skip to main content

Side by side

amika Normcore Signature Shampoo vs As I Am Jamaican Black Castor Oil Shampoo

83% function match · 10 of the 13 functions we compared match Formula overlap 10%. amika Normcore Signature Shampoo and As I Am Jamaican Black Castor Oil Shampoo share 2 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.

  • Normcore Signature Shampoo — colour-treated hair
  • Jamaican Black Castor Oil Shampoo — flaking scalps

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
amika Normcore Signature Shampoo — 9.2 oz container amika

Normcore Signature Shampoo

  • Shampoo
  • Salon
  • Sulfate-free
  • Silicone-free
As I Am Jamaican Black Castor Oil Shampoo — 8 oz container As I Am

Jamaican Black Castor Oil Shampoo

  • Shampoo
  • Drugstore
  • Sulfate-free
  • Silicone-free
Price, size & price per ounce
$27 9.2 oz · $2.93/oz
$10.99 8 oz · $1.15/oz
Value / price positioning
Upper-mid price for a shampoo $$$$$ Salon tier · costs more than 74% of the 817 shampoos we’ve priced
Priced with its peers $$$$$ Drugstore tier · costs less than 61% of the 817 shampoos 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
Cleansing strength Same
Gentle Removes light dirt and oil without stripping. Your hair
Gentle Removes light dirt and oil without stripping. Your hair
Slip / detangling Same
Moderate Conditioning agents are present, lower in the list. Your hair
Moderate Conditioning agents are present, lower in the list. Your hair
Weight on hair
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
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
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
Moderate Your hair
Moderate Your hair
Expected lather Same
Moderate An ordinary shampoo lather. Your hair
Moderate An ordinary shampoo lather. Your hair
Scalp active Differs
None No over-the-counter scalp active. Your hair
zinc pyrithione Carries an over-the-counter scalp active, listed under Drug Facts. Your hair
Hard-water defence Same
None No chelating agent in the list. Your hair
None No chelating agent in the list. Your hair
Formula completeness
out of 10
Complete for its job
out of 10
Complete for its job
Who should choose this
  • Colour-treated hairthat fades faster in a sulfate wash
  • Protein-sensitive hairthat stiffens when protein is added
  • Frequent washerswho want gentler cleansing
  • Dry, thirsty hairhumectants and emollients both sit up front
  • Flaking scalpsthis carries an over-the-counter active
  • Colour-treated hairthat fades faster in a sulfate wash
  • Protein-sensitive hairthat stiffens when protein is added
  • Frequent washerswho want gentler cleansing
Why you might skip it
  • Scents bother youthis product carries a scent
  • Heavy product buildupthis is not a clarifying wash
  • A squeaky-clean feelthis deliberately leaves conditioning behind
  • Scents bother youthis product carries a scent
  • Heavy product buildupthis is not a clarifying wash
  • A squeaky-clean feelthis deliberately leaves conditioning behind
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
Shampoo
Shampoo
Line
Normcore
Jamaican Black Castor Oil
Where to buy
Brand website
Brand website · Beauty supply · Target
Free of
  • sulfate-free
  • silicone-free
  • protein-free
  • curly-method compatible
  • sulfate-free
  • silicone-free
  • protein-free
  • curly-method compatible
Cruelty-free
Cruelty-free · PETA-listed
Cruelty-free · PETA-listed
Scent
Scented, not described
Scented, not described

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

IngredientNormcore Signature ShampooJamaican Black Castor Oil Shampoo
Caprylyl Glycol
Moisturizes
#2Leading
#17Below the 1% line
Citric Acid
pH balancer
#3Leading
#12Below the 1% line
Cocamidopropyl Betaine
Cleanses
#4Supporting
#16Below the 1% line
Fragrance
Fragrance
#9Below the 1% line
#10Below the 1% line
Limonene
Fragrance
#16Below the 1% line
#27Below the 1% line
Water
Neutral
#23Below the 1% line
#1Leading
Glycerin
Moisturizes
#10Below the 1% line
#6Supporting

What only one of them carries

Normcore Signature Shampoo

Jamaican Black Castor Oil Shampoo

Full ingredient list — Normcore Signature Shampoo (23)
Full ingredient list — Jamaican Black Castor Oil Shampoo (27)

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.

VerdictsNormcore Signature ShampooJamaican Black Castor Oil Shampoo
Supported
1
1
Partly supported
0
0
Stated by brand
2
2
Potential conflict
0
0

Normcore Signature Shampoo

  • Visibly improves scalp conditionStated by brandCan’t be confirmed from label.
  • Gently cleanses scalp and hairStated by brandCan’t be confirmed from label.
  • Fatty acids weightlessly hydrate and revive dullnessSupportedHelps hair feel hydrated.

Jamaican Black Castor Oil Shampoo

  • Cleanses hair and scalp without stripping the moistureSupportedHelps hair feel hydrated.
  • Reduces breakage by 96%Stated by brandOnly the brand’s testing shows this.
  • Eases combing by 34%Stated by brandOnly the brand’s testing shows this.

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.

Normcore Signature Shampoo

Switchers from other salon brands (e.g. Ouai) report hair feeling healthier and shinier after switching

brand-switchers, straight-hair reviewers

Hair feels noticeably cleaner and less oily at the scalp, letting reviewers stretch time between washes

reviewers with oily scalp, several hair types (straight/wavy/coily)

Long-term repeat purchasers, some reporting 5+ years of continuous use

long-term customers

Used as part of a wash routine paired with amika Perk Up Plus dry shampoo to extend days between washes

oily-scalp reviewers

Travel-size portions called out as convenient for carry-on air travel

travel-focused reviewers

Jamaican Black Castor Oil Shampoo

A reviewer with heat-damaged curls says it is the best shampoo they have tried for that specific concern.

Reviewer with heat-damaged hair

Reviewers with type 4/coily hair say it cleanses effectively without stripping moisture, contrasting it favorably against shampoos that leave their hair dry or unmanageable.

Coily/type 4 reviewers

Multiple reviewers describe a rich lather and report their hair looks shinier and healthier afterward.

General reviewer base

Long-time users call it a holy-grail staple they hope the brand never discontinues or reformulates.

Repeat/loyal users

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.

$1.15/oz vs $2.93/oz — amika Normcore Signature Shampoo costs about 2.5× more per ounce than As I Am Jamaican Black Castor Oil Shampoo.

$0.00/oz median $1.47/oz $17.29/oz $2.93/oz Normcore Signature Shampoo $1.15/oz Jamaican Black Castor Oil

Every mark sits on one distribution because these are compared against the same set: 817 shampoos with a computable unit price.

Value readNormcore Signature ShampooJamaican Black Castor Oil Shampoo
Label
Upper-mid price for a shampooSits in the middle of the range for shampoos per ounce.
Priced with its peersSits in the middle of the range for shampoos per ounce.

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.

Normcore Signature Shampoo vs Advanced Therapy Anti-Hair Thinning ShampooPura d'or · 96% function matchJamaican Black Castor Oil Shampoo vs Ultra Hydrating ShampooAcure · 81% function matchNormcore Signature Shampoo vs Daily Workout Shampoo with Watermelon & Blood OrangeAcure · 95% function matchJamaican Black Castor Oil Shampoo vs Original Fresh Scent - 3-in-1 CleanserKirk's · 81% function matchNormcore Signature Shampoo vs Mirrorball High Shine Protect Antioxidant Shampooamika · 93% function matchJamaican Black Castor Oil Shampoo vs Juniper & Lime - 3-in-1 CleanserKirk's · 81% function matchNormcore Signature Shampoo vs Ocean Surf Repair & Refresh ShampooAlba Botanica · 93% function matchJamaican Black Castor Oil Shampoo vs Lavender & Vanilla - 3-in-1 CleanserKirk's · 81% function match

Normcore Signature Shampoo · Jamaican Black Castor Oil Shampoo · All shampoos 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.
  • 10 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