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Side by side

Kristin Ess Strengthening Shampoo vs ORS Olive Oil Sulfate-Free Hydrating Shampoo

89% function match · 10 of the 13 functions we compared match Formula overlap 47%. Kristin Ess Strengthening Shampoo and ORS Olive Oil Sulfate-Free Hydrating Shampoo 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.

  • Strengthening Shampoo — colour-treated hair
  • Olive Oil Sulfate-Free Hydrating Shampoo — colour-treated 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
Kristin Ess Strengthening Shampoo — 10 oz container Kristin Ess

Strengthening Shampoo

  • Shampoo
  • Drugstore
  • Sulfate-free
  • Curly-method
ORS Olive Oil Sulfate-Free Hydrating Shampoo — 12.5 oz container ORS

Olive Oil Sulfate-Free Hydrating Shampoo

  • Shampoo
  • Drugstore
  • Sulfate-free
  • Moisture-rich
Price, size & price per ounce
$12–13 10 oz · $1.24/oz
$8.99 12.5 oz · $0.72/oz
Value / price positioning
Priced with its peers $$$$$ Drugstore tier · costs less than 57% of the 817 shampoos we’ve priced
Lower cost than most shampoos $$$$$ Drugstore tier · costs less than 79% of the 817 shampoos we’ve priced
Best for hair types
Curly–Coily A heavy formula: coarse, curlier strands carry it without flattening. Your hair
All types Nothing in the formula or the claims narrows this to one pattern. Your hair
Moisture level Differs
Moderate Humectants in the working part of the formula. Your hair
Moderate Humectants in the working part of the formula. Your hair
Cleansing strength Same
Strong Removes oil, buildup, and most residue — a reset wash. Your hair
Strong Removes oil, buildup, and most residue — a reset wash. Your hair
Slip / detangling Differs
Moderate Conditioning agents are present, lower in the list. Your hair
Some Some slip, mostly from esters or silicones rather than conditioners. Your hair
Weight on hair
Rich Heavy butters and waxes in the first eight ingredients. 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
Present Fragrance is listed; it sits below the working ingredients. Your hair
Protein Same
Minor Protein appears, low enough to be a supporting ingredient. Your hair
Minor Protein appears, low enough to be a supporting ingredient. Your hair
Silicone / wax buildup Same
Low The silicones here are the water-soluble kind. Your hair
Low The silicones here are the water-soluble kind. Your hair
Clarifying wash needed
Low Your hair
Low Your hair
Expected lather Same
High Thick foam that spreads quickly through the hair. Your hair
High Thick foam that spreads quickly through the hair. Your hair
Scalp active Same
None No over-the-counter scalp active. Your hair
None No over-the-counter scalp active. Your hair
Hard-water defence Same
Chelators present Chelators are present — they bind hard-water and pool minerals. Your hair
Chelators present Chelators are present — they bind hard-water and pool minerals. Your hair
Formula completeness
out of 10
Complete for its job
out of 10
Covers the core
Who should choose this
  • Colour-treated hairthat fades faster in a sulfate wash
  • Fast-oiling scalpsthat need a real reset wash
  • Curly-method routinesno sulfates and no water-insoluble silicones
  • Hard waterand swimmers dealing with mineral deposit
  • Colour-treated hairthat fades faster in a sulfate wash
  • Fast-oiling scalpsthat need a real reset wash
  • Dry, thirsty hairhumectants and emollients both sit up front
  • Curly-method routinesno sulfates and no water-insoluble silicones
Why you might skip it
  • Scents bother youthis product carries a strong scent
  • Oily scalp or fine hairthat gets weighed down
  • Dry or damaged haira strong detergent system strips as it cleans
  • Scents bother youthis product carries a scent
  • Dry or damaged haira strong detergent system strips as it cleans
  • Hair that tangles wetnothing here reduces combing force
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
Where to buy
Brand website · Ulta
Target · Brand website · Drugstore
Free of
  • sulfate-free
  • curly-method compatible
  • sulfate-free
  • curly-method compatible
Vegan
Vegan · label states
—
Cruelty-free
Cruelty-free · label states
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

IngredientStrengthening ShampooOlive Oil Sulfate-Free Hydrating Shampoo
Water
Neutral
#1Leading
#1Leading
Sodium C14-16 Olefin Sulfonate
Cleanses
#2Leading
#2Leading
Cocamidopropyl Betaine
Cleanses
#3Leading
#5Supporting
Fragrance
Fragrance
#4Below the 1% line
#12Below the 1% line
Glycerin
Moisturizes
#39Below the 1% line
#22Below the 1% line

What only one of them carries

Strengthening Shampoo

Olive Oil Sulfate-Free Hydrating Shampoo

Full ingredient list — Strengthening Shampoo (54)
Full ingredient list — Olive Oil Sulfate-Free Hydrating Shampoo (23)
  • 1 Water
    • solvent
  • 2 Sodium C14-16 Olefin Sulfonate
    • olefin sulfonate cleanser
    • cleanser
  • 3 Disodium Cocoamphodipropionate
    • amphoteric cleanser
    • secondary cleanser
    • cleanser
  • 4 Cocamide MEA
    • secondary cleanser
    • nonionic cleanser
    • thickener
  • 5 Cocamidopropyl Betaine
    • amphoteric cleanser
    • secondary cleanser
    • cleanser
  • 6 Glycerin
    • humectant
  • 7 Citric PEG-12 Dimethicone Hydoolyzed Wheat Protein
    • film former
    • protein
    • silicone
    • water-soluble silicone
  • 8 Cocos Nucifera Coconut Oil
    • oil
    • emollient
  • 9 Olea Europaea Olive Fruit Oil
    • oil
    • emollient
  • 10 Rosmarinus Officinalis Rosemary Leaf Extract
    • botanical extract
  • Below about this point, order stops being meaningful — these are typically used at 1% or less.
  • 11 Mentha Piperita Peppermint Oil
    • botanical extract
    • essential oil
    • fragrance
  • 12 Fragrance
    • fragrance
    • declared fragrance
  • 13 Amyl Cinnamyl Benzyl Alcohol
  • 14 Butylphenyl Methylproprional
  • 15 Hexyl Cinnamal
    • fragrance
    • named fragrance allergen
  • 16 Limonene
    • fragrance
    • named fragrance allergen
  • 17 Linalool
    • fragrance
    • named fragrance allergen
  • 18 Disodium EDTA
    • hard-water chelator
  • 19 Phenoxyethanol
    • preservative
  • 20 Benzoic Acid
    • preservative
  • 21 Ethylhexyl
  • 22 Glycerin
    • humectant
  • 23 Glycereth-2 Cocoate
    • emulsifier
    • emollient

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.

VerdictsStrengthening ShampooOlive Oil Sulfate-Free Hydrating Shampoo
Supported
3
2
Partly supported
0
0
Stated by brand
0
0
Potential conflict
0
0

Strengthening Shampoo

  • cruelty freeSupportedMatches our researched record.
  • color + keratin safeSupportedThe named ingredient is really there.
  • veganSupportedMatches our researched record.

Olive Oil Sulfate-Free Hydrating Shampoo

  • Formulated to gently cleanse while infusing moisture and conditioning the scalpSupportedHelps hair feel hydrated.
  • Beneficial for color-treated and/or keratin-treated hairSupportedLess fade per wash.

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.

Strengthening Shampoo

A number of reviewers did not notice any added strength, thickness, or reduced breakage despite the product's name.

Many reviewers say the shampoo lathers well and leaves hair feeling clean without heavy residue.

Several reviewers find the thick, gel-like texture difficult to squeeze out of the bottle.

Reviewers consistently praise the fragrance as pleasant and long-lasting after washing.

Olive Oil Sulfate-Free Hydrating Shampoo

Reviewers report noticeably reduced hair breakage after switching to this shampoo

Users report the shampoo leaves hair feeling clean and well-moisturized after a single use

Some long-term users describe it as their sole regular shampoo for multiple years, suggesting strong repeat-purchase loyalty

long-term/repeat 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.

$0.72/oz vs $1.24/oz — Kristin Ess Strengthening Shampoo costs about 1.7× more per ounce than ORS Olive Oil Sulfate-Free Hydrating Shampoo.

$0.00/oz median $1.48/oz $17.29/oz $1.24/oz Strengthening Shampoo $0.72/oz Olive Oil Sulfate-Free Hyd

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

Value readStrengthening ShampooOlive Oil Sulfate-Free Hydrating Shampoo
Label
Priced with its peersSits in the middle of the range for shampoos per ounce.
Lower cost than most shampoosCosts less per ounce than most shampoos 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.

Strengthening Shampoo vs Kristin Ess The One Signature ShampooKristin Ess · 93% function matchOlive Oil Sulfate-Free Hydrating Shampoo vs Kristin Ess The One Signature ShampooKristin Ess · 89% function matchStrengthening Shampoo vs Extra Love ShampooIGK Hair · 91% function matchOlive Oil Sulfate-Free Hydrating Shampoo vs Extra Love ShampooIGK Hair · 89% function matchStrengthening Shampoo vs Extra Strength Damage Remedy + Coconut Miracle Oil ShampooOGX · 87% function matchOlive Oil Sulfate-Free Hydrating Shampoo vs Babassu Conditioning Sulfate-Free ShampooMielle Organics · 84% function matchStrengthening Shampoo vs Nourishing + Coconut Milk ShampooOGX · 87% function matchOlive Oil Sulfate-Free Hydrating Shampoo vs Shampoo EspecializadoLeche Pal Pelo · 82% function match

Strengthening Shampoo · Olive Oil Sulfate-Free Hydrating 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.
  • 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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