Side by side
R+Co ESSENTIAL SHAMPOO vs R+Co GEMSTONE Color Shampoo
56% function match · 6 of the 13 functions we compared match Formula overlap 12%. R+Co ESSENTIAL SHAMPOO and R+Co GEMSTONE Color Shampoo share 2 ingredients among each other's most prominent.
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.
- ESSENTIAL SHAMPOO — colour-treated hair
- GEMSTONE Color 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”.
- Colour-treated hairthat fades faster in a sulfate wash
- Protein-sensitive hairthat stiffens when protein is added
- Fast-oiling scalpsthat need a real reset wash
- Dry, thirsty hairhumectants and emollients both sit up front
- Colour-treated hairthat fades faster in a sulfate wash
- Fast-oiling scalpsthat need a real reset wash
- Hard waterand swimmers dealing with mineral deposit
- Very dry hairno fast-drying alcohol in the list
- Scents bother youthis product carries a scent
- Dry or damaged haira strong detergent system strips as it cleans
- Hair that needs proteinthere is none in this list
- Scents bother youthis product carries a scent
- Curly-method routinesthese silicones need a detergent to remove
- Dry or damaged haira strong detergent system strips as it cleans
More facts about each one
- sulfate-free
- silicone-free
- protein-free
- curly-method compatible
- sulfate-free
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.
$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
What only one of them carries
ESSENTIAL SHAMPOO
Full ingredient list — ESSENTIAL SHAMPOO (43)
-
1
Water
- solvent
-
2
Sodium C14-16 Olefin Sulfonate
- olefin sulfonate cleanser
- cleanser
-
3
Propylene Glycol
- humectant
- solvent
-
4
Polyacrylate-33
- film former
- polymer
-
5
Sodium Lauroyl Sarcosinate
- mild anionic cleanser
- cleanser
- Below about this point, order stops being meaningful — these are typically used at 1% or less.
-
6
Phenoxyethanol
- preservative
-
7
Fragrance
- fragrance
- declared fragrance
-
8
Glyceryl Stearate Se
- emulsifier
- emollient
-
9
Sodium Hydroxide
- pH adjuster
-
10
Polyquaternium-10
- conditioning agent
- film former
- polymer
-
11
Potassium Sorbate
- preservative
-
12
Ethylhexylglycerin
- preservative
- emollient
-
13
Glycerin
- humectant
-
14
Phytic Acid
- hard-water chelator
-
15
Caprylic Acid
- preservative
- emulsifier
-
16
Guar Hydroxypropyltrimonium Chloride
- conditioning agent
- polymer
- gum
-
17
Xylitol
- humectant
-
18
Crocus Sativus Flower Extract
- botanical extract
-
19
Ethyl Linoleate
- light ester
- emollient
-
20
Cocos Nucifera (Coconut) Oil
- oil
- emollient
-
21
Caffeine
- active
-
22
Cucumis Sativus (Cucumber) Seed Oil
- oil
- emollient
-
23
Ethyl Oleate
- light ester
- emollient
-
24
Hippophae Rhamnoides Oil
- oil
- emollient
-
25
Glyceryl Ricinoleate
- light ester
- emollient
-
26
Chondrus Crispus Extract
- gum
- thickener
- botanical extract
-
27
Cyclodextrin
- solubilizer
-
28
Orbignya Oleifera (Babassu) Seed Oil
- oil
- emollient
-
29
Tocopherol
- antioxidant
- vitamin
-
30
Hydrogenated Soybean Oil
- oil
- emollient
- sealant
-
31
Persea Gratissima (Avocado) Oil
- oil
- emollient
-
32
Crambe Abyssinica Seed Oil
- oil
- emollient
-
33
Cucumis Sativus (Cucumber) Fruit Extract
- botanical extract
-
34
Helianthus Annuus (Sunflower) Seed Oil
- oil
- emollient
-
35
Ricinus Communis (Castor) Seed Oil
- oil
- emollient
-
36
Benzyl Alcohol
- preservative
- solvent
-
37
Caprylyl/Capryl Glucoside
- nonionic cleanser
- cleanser
-
38
Propanediol
- humectant
- solvent
-
39
Linum Usitatissimum (Linseed) Seed Oil
- oil
- emollient
-
40
Sorbic Acid
- preservative
-
41
Limonene
- fragrance
- named fragrance allergen
-
42
Benzyl Salicylate
- fragrance
- named fragrance allergen
-
43
Linalool
- fragrance
- named fragrance allergen
Full ingredient list — GEMSTONE Color Shampoo (47)
-
1
Water
- solvent
-
2
Sodium Lauroyl Methyl Isethionate
- mild anionic cleanser
- cleanser
-
3
Lauryl Glucoside
- nonionic cleanser
- cleanser
-
4
Disodium Cocoamphodipropionate
- amphoteric cleanser
- secondary cleanser
- cleanser
-
5
Sodium Cocoyl Isethionate
- mild anionic cleanser
- cleanser
-
6
Sodium Lauroyl Sarcosinate
- mild anionic cleanser
- cleanser
-
7
Acrylates Copolymer
- film former
- polymer
-
8
Glycol Distearate
- opacifier
- emollient
-
9
Moringa Oleifera Seed Oil
- oil
- emollient
-
10
Cynara Scolymus (Artichoke) Leaf Extract
- botanical extract
-
11
Citrus Junos Peel Extract
- botanical extract
-
12
Rhodiola Rosea Root Extract
- botanical extract
-
13
Caesalpinia Spinosa Fruit Extract
- botanical extract
-
14
Helianthus Annuus (Sunflower) Sprout Extract
- botanical extract
-
15
Maltodextrin
- absorbent
- film former
- binder
-
16
Hibiscus Esculentus Seed Extract
- botanical extract
-
17
Litchi Chinensis Pericarp Extract
- botanical extract
-
18
Hydrolyzed Vegetable Protein PG-Propyl Silanetriol
- film former
- protein
- hydrolysed protein
-
19
Cystine Bis-PG-Propyl Silanetriol
- amino acid
- protein
-
20
Panthenol
- humectant
- conditioning agent
- vitamin
- Below about this point, order stops being meaningful — these are typically used at 1% or less.
-
21
Tocopherol
- antioxidant
- vitamin
-
22
Glycerin
- humectant
-
23
Cocamide MIPA
- secondary cleanser
- nonionic cleanser
- thickener
-
24
Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate
- antioxidant
-
25
Laureth-4
- emulsifier
-
26
Cocamidopropyl Betaine
- amphoteric cleanser
- secondary cleanser
- cleanser
-
27
Polyquaternium-113
- conditioning agent
- film former
- polymer
-
28
Silicone Quaternium-8
- silicone
- film former
- conditioning agent
-
29
Trideceth-10
- emulsifier
- solubilizer
-
30
Quaternium-95
- conditioning agent
-
31
Propanediol
- humectant
- solvent
-
32
Butyl Methoxydibenzoylmethane
- UV filter
-
33
Ethylhexyl Methoxycinnamate
- UV filter
-
34
Ethylhexyl Salicylate
- UV filter
-
35
Caprylyl Glycol
- preservative
- humectant
-
36
Ethylhexylglycerin
- preservative
- emollient
- 37 Isopropanolamine
-
38
BHT
- antioxidant
-
39
Disodium EDTA
- hard-water chelator
-
40
Citric Acid
- pH adjuster
- hard-water chelator
-
41
Phenoxyethanol
- preservative
-
42
Potassium Sorbate
- preservative
-
43
Sodium Benzoate
- preservative
- 44 Formic Acid
-
45
Fragrance
- fragrance
- declared fragrance
-
46
Limonene
- fragrance
- named fragrance allergen
-
47
Linalool
- fragrance
- named fragrance allergen
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.
ESSENTIAL SHAMPOO
An everyday all-star created for all hair types.
Stated by brandSee the fit panel instead.Luxe lather, gentle cleansing, optimal hydration.
SupportedHelps hair feel hydrated.
GEMSTONE Color Shampoo
Shine bright with GEMSTONE, a nourishing shampoo for color-treated hair
SupportedLess fade per wash.Contains a color protection complex proven to keep your hue rich and vibrant
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, shine, and how it cleanses.
ESSENTIAL SHAMPOO
Reviewers note a little product goes a long way and avoids the straw-like feeling some other shampoos leave
generalReviewers frequently praise the fragrance as a standout, floral scent
multiple reviewers across hair typesSeveral reviewers say it leaves hair soft and shiny after washing
generalReviewers with fine hair report good lather and cleansing without drying, allowing longer stretches between washes
fine hairGEMSTONE Color Shampoo
Reviewers describe it as strong enough to fully cleanse yet gentle enough to help color treatments last longer
general color-treated hairFine-haired curly reviewers report it keeps color good while reducing dryness
fine, curly, colored hairReviewers with thick, coarse hair note added shine and silkiness after use
thick/coarse hair typeReviewers report the shampoo keeps color-treated hair vibrant and true over time, some using it for several years without switching
multi-year repeat customers, colored hairPrice 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.
$2.94/oz vs $17.29/oz — R+Co ESSENTIAL SHAMPOO costs about 5.9× more per ounce than R+Co GEMSTONE Color Shampoo.
Every mark sits on one distribution because these are compared against the same set: 817 shampoos with a computable unit price.
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.
ESSENTIAL SHAMPOO · GEMSTONE Color 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.
- 12 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
