K18 Hair PEPTIDE PREP™ pH Maintenance Shampoo Versus L'Oréal Professionnel Metal Detox Sulfate-Free Shampoo
Updated on April 18, 2025
Overview
What they are
These products are both reef safe shampoos. They have a total of 0 ingredients in common
Suited For
They're both likely to be good for dry skin, brightening skin and scar healing
Free From
They both do not contain any harsh alcohols, oils, parabens or sulfates
What's Inside
They both contain common allergens and fragrances
We independently verify ingredients, and our claims are backed by peer-reviewed research. Spot a product that needs an update? Let us know.
Ingredient Info
K18 Hair PEPTIDE PREP™ pH Maintenance Shampoo 18 ingredients
L'Oréal Professionnel Metal Detox Sulfate-Free Shampoo 37 ingredients
What's inside (and what isn't)
What's inside (and what isn't)
At a glance
Click on any of the items below to learn more
K18 Hair PEPTIDE PREP™ pH Maintenance Shampoo 18 ingredients
L'Oréal Professionnel Metal Detox Sulfate-Free Shampoo 37 ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningSodium C14-16 Olefin Sulfonate
Cleansing
Cocamidopropyl Betaine
Cleansing
Sodium Methyl 2-Sulfolaurate
CleansingSodium Lauryl Sulfoacetate
CleansingSh-Oligopeptide-78
Panthenol
Skin Conditioning
Glycerin
Humectant
Sodium Phytate
Guar Hydroxypropyltrimonium Chloride
Skin ConditioningDisodium 2-Sulfolaurate
CleansingCaprylyl Glycol
EmollientCaprylhydroxamic Acid
Benzoic Acid
Masking
Citric Acid
Buffering
Sodium Hydroxide
BufferingParfum
Masking
Limonene
Perfuming
Water, Sodium C14-16 Olefin Sulfonate, Cocamidopropyl Betaine, Sodium Methyl 2-Sulfolaurate, Sodium Lauryl Sulfoacetate, Sh-Oligopeptide-78, Panthenol, Glycerin, Sodium Phytate, Guar Hydroxypropyltrimonium Chloride, Disodium 2-Sulfolaurate, Caprylyl Glycol, Caprylhydroxamic Acid, Benzoic Acid, Citric Acid, Sodium Hydroxide, Parfum, Limonene
Sodium Cocoyl Isethionate
CleansingDisodium Laureth Sulfosuccinate
CleansingGlycol Distearate
Emollient
Sodium Lauryl Sulfoacetate
CleansingSodium Lauroyl Sarcosinate
CleansingGlycerin
Humectant
Parfum
Masking
PPG-5-Ceteth-20
EmulsifyingDecyl Glucoside
CleansingCocamidopropyl Betaine
Cleansing
Coco-Betaine
CleansingDivinyldimethicone/Dimethicone Copolymer
Amodimethicone
Citric Acid
Buffering
Sodium Hydroxide
BufferingPolyquaternium-7
Polyquaternium-10
Carbomer
Emulsion StabilisingSodium Benzoate
Masking
Sodium Chloride
Masking
Limonene
Perfuming
PEG-55 Propylene Glycol Oleate
Propylene Glycol
Humectant
Salicylic Acid
Masking
Benzoic Acid
Masking
Polysorbate 21
Emulsifying
Hexyl Cinnamal
Perfuming
Linalool
Perfuming
Trideceth-6
EmulsifyingC12-13 Pareth-23
CleansingC12-13 Pareth-3
EmulsifyingCitral
Perfuming
Geraniol
Perfuming
Glycine
Buffering
Tocopherol
Antioxidant
Cetrimonium Chloride
Antimicrobial
Phenoxyethanol
Preservative
Sodium Cocoyl Isethionate, Disodium Laureth Sulfosuccinate, Glycol Distearate, Sodium Lauryl Sulfoacetate, Sodium Lauroyl Sarcosinate, Glycerin, Parfum, PPG-5-Ceteth-20, Decyl Glucoside, Cocamidopropyl Betaine, Coco-Betaine, Divinyldimethicone/Dimethicone Copolymer, Amodimethicone, Citric Acid, Sodium Hydroxide, Polyquaternium-7, Polyquaternium-10, Carbomer, Sodium Benzoate, Sodium Chloride, Limonene, PEG-55 Propylene Glycol Oleate, Propylene Glycol, Salicylic Acid, Benzoic Acid, Polysorbate 21, Hexyl Cinnamal, Linalool, Trideceth-6, C12-13 Pareth-23, C12-13 Pareth-3, Citral, Geraniol, Glycine, Tocopherol, Cetrimonium Chloride, Phenoxyethanol
Ingredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
K18 Hair PEPTIDE PREP™ pH Maintenance Shampoo 18 ingredients
L'Oréal Professionnel Metal Detox Sulfate-Free Shampoo 37 ingredients
Reviews
Here's what our community thinks
