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Side by side

L'Oreal Professionnel Metal Detox Pre-Shampoo Treatment vs L'Oreal Professionnel Serie Expert Metal Detox Mask

53% function match · 4 of the 10 functions we compared match Formula overlap 0%. L'Oreal Professionnel Metal Detox Pre-Shampoo Treatment and L'Oreal Professionnel Serie Expert Metal Detox Mask share 1 ingredient 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.

  • Metal Detox Pre-Shampoo Treatment — protein-sensitive hair
  • Serie Expert Metal Detox Mask — protein-sensitive 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
L'Oreal Professionnel Metal Detox Pre-Shampoo Treatment — 8.4 oz container L'Oreal Professionnel

Metal Detox Pre-Shampoo Treatment

  • Mask / treatment
  • Salon
  • Sulfate-free
  • Silicone-free
L'Oreal Professionnel Serie Expert Metal Detox Mask — 8.5 oz container L'Oreal Professionnel

Serie Expert Metal Detox Mask

  • Mask / treatment
  • Salon
  • Sulfate-free
  • Protein-free
Price, size & price per ounce
$35 8.4 oz · $4.17/oz
$23.25 8.45 oz · $3.30/oz
Value / price positioning
Upper-mid price for a treatment $$$$$ Salon tier · costs more than 57% of the 347 masks and treatments we’ve priced
Priced with its peers $$$$$ Salon tier · costs less than 53% of the 347 masks and treatments 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
None found No humectants found — nothing here pulls water into the hair. Your hair
Oils and butters Same
None No oils or butters in the list. Your hair
None No oils or butters in the list. Your hair
Slip / detangling Differs
Moderate Conditioning agents are present, lower in the list. Your hair
High Conditioning agents sit high in the list — this is a detangling formula. Your hair
Weight on hair Differs
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
Prominent Fragrance sits in the first eight ingredients — a larger share of the formula. 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 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
Time on the hair
—
Moderate Long enough that it is a planned step, not a shower add-on. Your hair
Formula completeness
out of 10
A simple formula
out of 10
Covers the core
Who should choose this
  • Protein-sensitive hairthat stiffens when protein is added
  • Curly-method routinesno sulfates and no water-insoluble silicones
  • Fine hairthat flattens under most products
  • Silicone-free routinesno silicones appear in the list
  • Protein-sensitive hairthat stiffens when protein is added
  • Maximum slipfor hair that tangles the moment it is wet
  • A wide range of haira middle-of-the-range weight
  • Easy to findsold through several channels
Why you might skip it
  • Scents bother youthis product carries a scent
  • Hair that needs proteinthere is none in this list
  • Coarse, very dry hairthis is a light formula for its category
  • Scents bother youthis product carries a scent
  • Curly-method routinesthese silicones need a detergent to remove
  • Very dry or damaged hairit contains fast-drying alcohol
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
Mask / treatmentcream
Mask / treatment
Where to buy
Salons · Brand website
Brand website · Amazon · Walmart
Free of
  • sulfate-free
  • silicone-free
  • protein-free
  • curly-method compatible
  • sulfate-free
  • protein-free
Scent
Scented, not described
Fresh & airy
Use stage
Before shampoo (directions incomplete)
—
Start on
wet hair
—
Label wait
1–2 minutes
—
Needs
Metal Detox Shampoo
—
Time on hair
—
1–15 min
How often
—
weekly
Treatment focus
—
color care

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

IngredientMetal Detox Pre-Shampoo TreatmentSerie Expert Metal Detox Mask
Water
Neutral
#1Leading
#1Leading
Phenoxyethanol
Stabilizes
#7Below the 1% line
#9Below the 1% line
Limonene
Fragrance
#14Below the 1% line
#10Below the 1% line
Hexyl Cinnamal
Fragrance
#15Below the 1% line
#12Below the 1% line
Linalool
Fragrance
#16Below the 1% line
#13Below the 1% line
Citral
Fragrance
#17Below the 1% line
#15Below the 1% line
Fragrance
Fragrance
#21Below the 1% line
#6Below the 1% line

What only one of them carries

Metal Detox Pre-Shampoo Treatment

Serie Expert Metal Detox Mask

Full ingredient list — Metal Detox Pre-Shampoo Treatment (21)
Full ingredient list — Serie Expert Metal Detox Mask (20)

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.

VerdictsMetal Detox Pre-Shampoo TreatmentSerie Expert Metal Detox Mask
Supported
1
1
Partly supported
0
0
Stated by brand
2
2
Potential conflict
0
0

Metal Detox Pre-Shampoo Treatment

  • Refill hair micro-breaks for 96% less breakageStated by brandOnly the brand’s testing shows this.
  • 2x hydrationStated by brandOnly the brand’s testing shows this.
  • Instant & efficient fiber detanglingSupportedEasier detangling, less breakage.

Serie Expert Metal Detox Mask

  • Apply evenly on shampooed and towel-dried hair; leave on 1 to 15 minutes depending on level of damage, then rinse thoroughlyStated by brandHow to use it, not a claim.
  • Salon soft hair at homeStated by brandSubjective feel varies by hair.
  • Positioned for color-treated hair to protect against metal-related damageSupportedLess 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.

Metal Detox Pre-Shampoo Treatment

No review themes researched for this product yet.

Serie Expert Metal Detox Mask

Removes metallic/mineral buildup from hard water, leaving hair soft and shiny

Walmart reviewer: "This mask...remove the metallic...dirt which exist in our water...and my hair became so soft and shiny and healthy."

Tones down brassy/over-processed color after use

Walmart reviewer: "After using this product as the conditioner after shampooing the dye out...I was thrilled to see my hair was toned down to a much more natural shade."

Used as an occasional deep conditioner rather than daily conditioner

Walmart reviewer: "I don't use this conditioner everyday as I consider it more of a deep conditioner."

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.

$3.30/oz vs $4.17/oz — L'Oreal Professionnel Metal Detox Pre-Shampoo Treatment costs about 1.3× more per ounce than L'Oreal Professionnel Serie Expert Metal Detox Mask.

$0.19/oz median $3.49/oz $24.50/oz $4.17/oz Metal Detox Pre-Shampoo Tr $3.30/oz Serie Expert Metal Detox M

Every mark sits on one distribution because these are compared against the same set: 347 masks and treatments with a computable unit price.

Value readMetal Detox Pre-Shampoo TreatmentSerie Expert Metal Detox Mask
Label
Upper-mid price for a treatmentSits in the middle of the range for masks and treatments per ounce.
Priced with its peersSits in the middle of the range for masks and treatments 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.

Metal Detox Pre-Shampoo Treatment vs Breakage Barrier Hair MaskPattern Beauty · 93% function matchSerie Expert Metal Detox Mask vs Genesis Masque Reconstituant Anti Hair-Fall Fortifying MasqueKérastase · 92% function matchMetal Detox Pre-Shampoo Treatment vs Dercos Collagen Peptide 17 Ultra-Repairing Pre-Shampoo TreatmentVichy · 92% function matchSerie Expert Metal Detox Mask vs Hydra Source Deep Treatment MaskBiolage · 90% function matchMetal Detox Pre-Shampoo Treatment vs Clear Jelly MaskPaul Mitchell · 90% function matchSerie Expert Metal Detox Mask vs Chroma Absolu Masque Chroma FillerKerastase · 88% function matchMetal Detox Pre-Shampoo Treatment vs Sea Moss Anti Shedding Gel MasqueMielle · 85% function matchSerie Expert Metal Detox Mask vs Chronologiste Masque Intense RégénérantKerastase · 88% function match

Metal Detox Pre-Shampoo Treatment · Serie Expert Metal Detox Mask · All masks and treatments 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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