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Side by side

R+Co ATLANTIS Moisturizing B5 Shampoo vs R+Co SUNSET BLVD Blonde Shampoo

84% function match · 10 of the 13 functions we compared match Formula overlap 93%. R+Co ATLANTIS Moisturizing B5 Shampoo and R+Co SUNSET BLVD Blonde 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.

  • ATLANTIS Moisturizing B5 Shampoo — colour-treated hair
  • SUNSET BLVD Blonde 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 ATLANTIS Moisturizing B5 Shampoo — 8.5 oz container R+Co

ATLANTIS Moisturizing B5 Shampoo

  • Shampoo
  • Salon
  • Sulfate-free
  • Lightweight
R+Co SUNSET BLVD Blonde Shampoo — 8.5 oz container R+Co

SUNSET BLVD Blonde Shampoo

  • Shampoo
  • Prestige
  • Sulfate-free
  • Lightweight
Price, size & price per ounce
$29.95 8.5 oz · $3.52/oz
$27–31 8.5 oz · $3.38/oz
Value / price positioning
Priced above most shampoos $$$$$ Salon tier · costs more than 81% of the 817 shampoos we’ve priced
Same job for less elsewhere $$$$$ Prestige tier · costs more than 79% 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
Moderate Humectants in the working part of the formula. 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
Light Water-first and light: unlikely to flatten fine hair. Your hair
Light Water-first and light: unlikely to flatten fine hair. Your hair
Fragrance
Prominent Fragrance sits in the first eight ingredients — a larger share of the formula. Your hair
Prominent Fragrance sits in the first eight ingredients — a larger share of the formula. 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
High Water-insoluble silicones or waxes: a detergent wash is what removes them. Your hair
High Water-insoluble silicones or waxes: a detergent wash is what removes them. 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 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
  • Hard waterand swimmers dealing with mineral deposit
  • Fine hairthat flattens under most products
  • Colour-treated hairthat fades faster in a sulfate wash
  • Fast-oiling scalpsthat need a real reset wash
  • Hard waterand swimmers dealing with mineral deposit
  • Fine hairthat flattens under most products
Why you might skip it
  • 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
  • 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
ATLANTIS
SUNSET BLVD
Where to buy
Sephora · Brand website
Brand website · Sephora
Free of
  • sulfate-free
  • 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

IngredientATLANTIS Moisturizing B5 ShampooSUNSET BLVD Blonde Shampoo
Water
Neutral
#1Leading
#1Leading
Sodium Lauroyl Methyl Isethionate
Cleanses
#2Leading
#2Leading
Disodium Cocoamphodipropionate
Cleanses
#3Leading
#3Leading
Lauryl Glucoside
Cleanses
#4Supporting
#4Supporting
Sodium Cocoyl Isethionate
Cleanses
#5Supporting
#5Supporting
Sodium Lauroyl Sarcosinate
Cleanses
#6Supporting
#6Supporting
Acrylates Copolymer
Holds
#7Supporting
#7Supporting
Fragrance
Fragrance
#8Below the 1% line
#8Below the 1% line
Hydrolyzed Vegetable Protein PG-Propyl Silanetriol
Protein
#12Below the 1% line
#12Below the 1% line
Limonene
Fragrance
#50Below the 1% line
#40Below the 1% line

What only one of them carries

ATLANTIS Moisturizing B5 Shampoo

SUNSET BLVD Blonde Shampoo

Full ingredient list — ATLANTIS Moisturizing B5 Shampoo (50)
Full ingredient list — SUNSET BLVD Blonde Shampoo (42)

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.

VerdictsATLANTIS Moisturizing B5 ShampooSUNSET BLVD Blonde Shampoo
Supported
0
0
Partly supported
1
0
Stated by brand
1
1
Potential conflict
0
0

ATLANTIS Moisturizing B5 Shampoo

  • Immerse yourself in moisture and shine with ATLANTISPartly supportedSome hydration, at a low level.
  • Counters the effects of sun, coloring, and blow-dryingStated by brandCan’t be confirmed from label.

SUNSET BLVD Blonde Shampoo

  • Head for the bright lights with SUNSET BLVD. This shampoo makes blondes extra bright and grays fantastically silver-- all without the brassy tones.Stated 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.

Both praised for moisture.

ATLANTIS Moisturizing B5 Shampoo

Used successfully on a sensitive, flaky scalp to reduce dryness

parent buying for a child with sensitive/flaky scalp

Frequently praised as effective on frizzy, curly, red/color-treated hair, described as a noticeable improvement over prior routine

reviewer with long, frizzy, curly, color-treated hair

Reviewers describe strong cleansing plus moisturizing performance, leaving hair silky-soft

general/repeat-purchase reviewers calling it a must-have

Travel/mini size purchased as a trial before committing to full size

trial-size buyers testing before full-size purchase

SUNSET BLVD Blonde Shampoo

Often used as part of a stylist-recommended toning system paired with the matching conditioner after bleaching/blonding.

recently color-treated/bleached hair

Several reviewers contrast it favorably with other purple shampoos, saying it leaves hair soft rather than straw-like or dry.

color-treated/blonde hair

Reviewers with gray/white hair report it neutralizes yellowing effectively even with hard water.

gray/white hair

A long-time user reports a formula change made it feel heavier and less suited to daily use than the prior version.

long-time daily user

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.

$3.38/oz vs $3.52/oz — within about the same cost per ounce.

$0.00/oz median $1.47/oz $17.29/oz $3.52/oz ATLANTIS Moisturizing B5 S $3.38/oz SUNSET BLVD Blonde Shampoo

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

Value readATLANTIS Moisturizing B5 ShampooSUNSET BLVD Blonde Shampoo
Label
Priced above most shampoosCosts more per ounce than most shampoos; nothing in our library matches it closely for less.
Same job for less elsewhereYou are paying above the range for a formula close to several lower-priced options.

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.

ATLANTIS Moisturizing B5 Shampoo vs DALLAS Biotin Thickening ShampooR+Co · 99% function matchSUNSET BLVD Blonde Shampoo vs EverPure Sulfate Free Purple ShampooL'Oreal Paris · 96% function matchATLANTIS Moisturizing B5 Shampoo vs Scalp Care Regeniplex ShampooPaul Mitchell · 98% function matchSUNSET BLVD Blonde Shampoo vs Cool Blonde ShampoodpHUE · 95% function matchATLANTIS Moisturizing B5 Shampoo vs BEL AIR Smoothing ShampooR+Co · 96% function matchSUNSET BLVD Blonde Shampoo vs Bright Blonde Shampoo for Beautiful ColorOribe · 92% function matchATLANTIS Moisturizing B5 Shampoo vs Legendary ShampooIGK Hair · 95% function matchSUNSET BLVD Blonde Shampoo vs Serial Blonde Purple ShampooTIGI Bed Head · 91% function match

ATLANTIS Moisturizing B5 Shampoo · SUNSET BLVD Blonde 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.
  • 9 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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