Skip to main content

Side by side

R+Co BLONDED BRIGHTENING SHAMPOO vs R+Co GEMSTONE Color Shampoo

49% function match · 6 of the 13 functions we compared match Formula overlap 11%. R+Co BLONDED BRIGHTENING SHAMPOO and R+Co GEMSTONE Color 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.

  • BLONDED BRIGHTENING 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”.

Trait
R+Co BLONDED BRIGHTENING SHAMPOO — 8.5 oz container R+Co

BLONDED BRIGHTENING SHAMPOO

  • Shampoo
  • Prestige
  • Sulfate-free
  • Silicone-free
R+Co GEMSTONE Color Shampoo — 8.5 oz container R+Co

GEMSTONE Color Shampoo

  • Shampoo
  • Prestige
  • Sulfate-free
Price, size & price per ounce
about $49 8.5 oz · $5.77/oz
$18–30 8.5 oz · $2.94/oz
Value / price positioning
Same job for less elsewhere $$$$$ Prestige tier · costs more than 97% of the 817 shampoos we’ve priced
Upper-mid price for a shampoo $$$$$ Prestige tier · costs more than 74% 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 Differs
High Humectants near the top — water-binding is a headline mechanism here. Your hair
Low Humectants appear, but low enough to be a minor part. 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 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
Medium Middle of the range — noticeable on fine hair, light on coarse 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
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 Differs
None Nothing here needs a detergent wash to remove. Your hair
High Water-insoluble silicones or waxes: a detergent wash is what removes them. Your hair
Clarifying wash needed
Low Your hair
Moderate Your hair
Expected lather Differs
High Thick foam that spreads quickly through the hair. Your hair
Moderate An ordinary shampoo lather. 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
Complete for its job
Who should choose this
  • 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
  • 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
Why you might skip it
  • Scents bother youthis product carries a scent
  • Dry or damaged haira strong detergent system strips as it cleans
  • Dry or very humid airwhere heavy humectants work against you
  • 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
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
—
GEMSTONE
Where to buy
Brand website
Sephora · Target
Free of
  • sulfate-free
  • silicone-free
  • curly-method compatible
  • sulfate-free
Vegan
Vegan · brand states
Vegan · brand states
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

IngredientBLONDED BRIGHTENING SHAMPOOGEMSTONE Color Shampoo
Water
Neutral
#1Leading
#1Leading
Glycerin
Moisturizes
#4Supporting
#22Below the 1% line
Sodium Lauroyl Sarcosinate
Cleanses
#5Supporting
#6Supporting
Phenoxyethanol
Stabilizes
#6Below the 1% line
#41Below the 1% line
Fragrance
Fragrance
#7Below the 1% line
#45Below the 1% line

What only one of them carries

BLONDED BRIGHTENING SHAMPOO

GEMSTONE Color Shampoo

Full ingredient list — BLONDED BRIGHTENING SHAMPOO (41)
Full ingredient list — GEMSTONE Color Shampoo (47)

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.

VerdictsBLONDED BRIGHTENING SHAMPOOGEMSTONE Color Shampoo
Supported
1
1
Partly supported
0
0
Stated by brand
1
1
Potential conflict
0
0

BLONDED BRIGHTENING SHAMPOO

  • Neutralize unwanted yellow tones with a highly buildable, antioxidant-rich, pigmented toning formulaStated by brandCan’t be confirmed from label.
  • Gently cleanses, moisturizes and helps repair color-treated hair as it nourishes and helps protect against future yellowingSupportedLess fade per wash.

GEMSTONE Color Shampoo

  • Shine bright with GEMSTONE, a nourishing shampoo for color-treated hairSupportedLess fade per wash.
  • Contains a color protection complex proven to keep your hue rich and vibrantStated 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.

BLONDED BRIGHTENING SHAMPOO

Some long-term users (multi-year, multi-month use on both natural and extension hair) report consistent brassiness control without over-toning to blue/purple cast

reviewers using it on extensions or graying hair

Widely praised by reviewers with blonde, gray, or white hair for neutralizing yellow/brassy tones, including balayage and highlighted hair

blonde/gray/white and highlighted hair

Reviewers note it has a thick, sudsy texture that's easy to work through hair

general user

Praised generally as a top pick among purple/blue toning shampoos by reviewers who report trying multiple competing brands

comparison shoppers

GEMSTONE Color Shampoo

Reviewers describe it as strong enough to fully cleanse yet gentle enough to help color treatments last longer

general color-treated hair

Fine-haired curly reviewers report it keeps color good while reducing dryness

fine, curly, colored hair

Reviewers with thick, coarse hair note added shine and silkiness after use

thick/coarse hair type

Reviewers 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 hair

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.

$2.94/oz vs $5.77/oz — R+Co BLONDED BRIGHTENING SHAMPOO costs about 2× more per ounce than R+Co GEMSTONE Color Shampoo.

$0.00/oz median $1.47/oz $17.29/oz $5.77/oz BLONDED BRIGHTENING SHAMPO $2.94/oz GEMSTONE Color Shampoo

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

Value readBLONDED BRIGHTENING SHAMPOOGEMSTONE Color Shampoo
Label
Same job for less elsewhereYou are paying above the range for a formula close to several lower-priced options.
Upper-mid price for a shampooSits 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.

BLONDED BRIGHTENING SHAMPOO vs Blonde Purple ShampooSun Bum · 93% function matchGEMSTONE Color Shampoo vs SUPER GARDEN ShampooR+Co · 100% function matchBLONDED BRIGHTENING SHAMPOO vs Royal Treatment Color Gloss Blonde Enhancing Purple ShampooCHI · 91% function matchGEMSTONE Color Shampoo vs INGENIOUS THICKENING SHAMPOOR+Co · 100% function matchBLONDED BRIGHTENING SHAMPOO vs Silk Therapy with Organic Coconut Oil Moisturizing ShampooBiosilk · 89% function matchGEMSTONE Color Shampoo vs Moisture Repair ShampooMoroccanoil · 99% function matchBLONDED BRIGHTENING SHAMPOO vs Nº.4P Blonde Enhancer Toning ShampooOlaplex · 89% function matchGEMSTONE Color Shampoo vs Shampoo for Magnificent VolumeOribe · 98% function match

BLONDED BRIGHTENING 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.
  • 11 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