BrioGeo MegaStrength + Protein + Moisture Strengthening Treatment
K18 Hair Leave-In Molecular Repair Hair Mask
Versus

BrioGeo MegaStrength + Protein + Moisture Strengthening Treatment Versus K18 Hair Leave-In Molecular Repair Hair Mask

Leave-in Conditioner
Hair Mask
American Brand United States
American Brand United States

Updated on May 17, 2025

Overview

What they are

These products are both vegan, cruelty-free, and reef safe . They have a total of 0 ingredients in common

Suited For

They're both likely to be good for dry skin and scar healing

Free From

They both do not contain any parabens or silicones

What's Inside

They both contain harsh alcohols, 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.

New Comparison

Ingredient Info

Click any item below to learn more and see relevant ingredients

BrioGeo MegaStrength + Protein + Moisture Strengthening Treatment 33 ingredients

K18 Hair Leave-In Molecular Repair Hair Mask 21 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

BrioGeo MegaStrength + Protein + Moisture Strengthening Treatment 33 ingredients

K18 Hair Leave-In Molecular Repair Hair Mask 21 ingredients

Benefits

Concerns

Key Ingredients

Benefits

Concerns

Ingredients Side-by-side

found in both products
MegaStrength + Protein + Moisture Strengthening Treatment

Water

Skin Conditioning

Brassica Alcohol

Emollient
Not safe for Fungal Acne Icon

Squalane

Emollient
1 / 0 Helps hydrate Dry Skin Icon

Hydrogenated Castor Oil/Sebacic Acid Copolymer

Emollient
Oil IconNot safe for Fungal Acne Icon

Cetearyl Alcohol

Emollient
2 / 1 Fatty Alcohol IconMay worsen Oily Skin IconBad for Acne Prone Skin IconNot safe for Fungal Acne Icon

Cetyl Alcohol

Emollient
2 / 2 Fatty Alcohol Icon

Sodium PCA

Humectant
0 / 0 Helps hydrate Dry Skin IconHelps reduce Skin Redness IconHelps reduce irritation Icon

Sargassum Filipendula Extract

Skin Protecting

Prunus Amygdalus Dulcis Oil

Skin Conditioning
3 / 0 Oil IconHelps hydrate Dry Skin IconBad for Acne Prone Skin IconNot safe for Fungal Acne Icon

Capryloyl Glycerin/Sebacic Acid Copolymer

Skin Conditioning

Diheptyl Succinate

Emollient

Guar Hydroxypropyltrimonium Chloride

Skin Conditioning

Cetrimonium Chloride

Antimicrobial
Preservative Icon

Rosa Canina Fruit Oil

Emollient
Oil IconHelps hydrate Dry Skin IconGood for Scar Healing IconNot safe for Fungal Acne Icon

Brassicyl Isoleucinate Esylate

Emulsion Stabilising

Biotin

Antiseborrhoeic

Panthenol

Skin Conditioning
0 / 0 Helps hydrate Dry Skin IconHelps reduce Skin Redness IconHelps reduce irritation IconGood for Scar Healing Icon

Glycerin

Humectant
0 / 0 Helps hydrate Dry Skin IconGood for Scar Healing IconHelps brighten skin Icon

Behentrimonium Methosulfate

Sulfate Icon

Citric Acid

Buffering
AHA IconGood for Oily Skin IconGood for Skin Texture IconGood for Minimizing Pores IconGood for Scar Healing IconHelps brighten skin IconMay worsen Rosacea Icon

Parfum

Masking
Fragrance IconMay worsen Eczema IconMay worsen Rosacea Icon

Dehydroacetic Acid

Preservative
Preservative Icon

Benzyl Alcohol

Perfuming
Alcohol IconFragrance IconPreservative IconCan worsen Dry Skin IconMay worsen Oily Skin IconMay cause irritation IconEU Allergen IconMay worsen Eczema IconMay worsen Rosacea Icon

Saccharomyces/Rice Ferment Filtrate

Skin Conditioning
Helps hydrate Dry Skin Icon

Oryza Sativa Bran Water

Masking
Fragrance Icon

Hydrolyzed Rice Protein

Skin Conditioning

Oryza Sativa Bran Oil

Emollient
Oil IconHelps hydrate Dry Skin IconHelps reduce Skin Redness IconHelps reduce irritation IconNot safe for Fungal Acne Icon

Arginine

Masking
Good for Scar Healing IconNot safe for Fungal Acne Icon

Potassium Sorbate

Preservative
Preservative Icon

Sodium Benzoate

Masking
Preservative Icon

Pentylene Glycol

Skin Conditioning

Iron Oxides

CI 77491

Cosmetic Colorant

Water, Brassica Alcohol, Squalane, Hydrogenated Castor Oil/Sebacic Acid Copolymer, Cetearyl Alcohol, Cetyl Alcohol, Sodium PCA, Sargassum Filipendula Extract, Prunus Amygdalus Dulcis Oil, Capryloyl Glycerin/Sebacic Acid Copolymer, Diheptyl Succinate, Guar Hydroxypropyltrimonium Chloride, Cetrimonium Chloride, Rosa Canina Fruit Oil, Brassicyl Isoleucinate Esylate, Biotin, Panthenol, Glycerin, Behentrimonium Methosulfate, Citric Acid, Parfum, Dehydroacetic Acid, Benzyl Alcohol, Saccharomyces/Rice Ferment Filtrate, Oryza Sativa Bran Water, Hydrolyzed Rice Protein, Oryza Sativa Bran Oil, Arginine, Potassium Sorbate, Sodium Benzoate, Pentylene Glycol, Iron Oxides, CI 77491

Leave-In Molecular Repair Hair Mask

Water

Skin Conditioning

Alcohol Denat.

Antimicrobial
Alcohol IconCan worsen Dry Skin IconMay worsen Oily Skin IconMay cause irritation IconMay worsen Eczema IconMay worsen Rosacea Icon

Propylene Glycol

Humectant
0 / 0 Helps hydrate Dry Skin IconMay worsen Eczema IconMay worsen Rosacea Icon

Cetearyl Alcohol

Emollient
2 / 1 Fatty Alcohol IconMay worsen Oily Skin IconBad for Acne Prone Skin IconNot safe for Fungal Acne Icon

Dicaprylyl Ether

Emollient
Helps hydrate Dry Skin Icon

Cetyl Esters

Emollient
1 / 1 Not safe for Fungal Acne Icon

Behentrimonium Chloride

Preservative
Preservative Icon

Polysorbate 20

Emulsifying
0 / 0 Not safe for Fungal Acne Icon

Sh-Oligopeptide-78

Peptide Icon

Hydrolyzed Wheat Protein

Skin Conditioning

Hydrolyzed Wheat Starch

Skin Conditioning

Isopropyl Alcohol

Solvent
0 / 0 Alcohol IconCan worsen Dry Skin IconMay cause irritation IconMay worsen Eczema IconMay worsen Rosacea Icon

Tocopherol

Antioxidant
0-3 / 0-3 Vitamin E IconAntioxidant IconHelps hydrate Dry Skin IconHelps with Anti-Aging IconGood for Scar Healing Icon

Phenoxyethanol

Preservative
Preservative Icon

Potassium Sorbate

Preservative
Preservative Icon

Citric Acid

Buffering
AHA IconGood for Oily Skin IconGood for Skin Texture IconGood for Minimizing Pores IconGood for Scar Healing IconHelps brighten skin IconMay worsen Rosacea Icon

Parfum

Masking
Fragrance IconMay worsen Eczema IconMay worsen Rosacea Icon

Geraniol

Perfuming
Fragrance IconMay cause irritation IconEU Allergen Icon

Linalool

Perfuming
Fragrance IconMay cause irritation IconEU Allergen IconMay worsen Eczema IconMay worsen Rosacea Icon

Hexyl Cinnamal

Perfuming
Fragrance IconMay cause irritation IconEU Allergen Icon

Benzyl Alcohol

Perfuming
Alcohol IconFragrance IconPreservative IconCan worsen Dry Skin IconMay worsen Oily Skin IconMay cause irritation IconEU Allergen IconMay worsen Eczema IconMay worsen Rosacea Icon

Water, Alcohol Denat., Propylene Glycol, Cetearyl Alcohol, Dicaprylyl Ether, Cetyl Esters, Behentrimonium Chloride, Polysorbate 20, Sh-Oligopeptide-78, Hydrolyzed Wheat Protein, Hydrolyzed Wheat Starch, Isopropyl Alcohol, Tocopherol, Phenoxyethanol, Potassium Sorbate, Citric Acid, Parfum, Geraniol, Linalool, Hexyl Cinnamal, Benzyl Alcohol

Ingredient Ratings

Here's what our community thinks of the ingredients in these products.

MegaStrength + Protein + Moisture Strengthening Treatment
10
10
10
liked
mixed
disliked
not rated
Unlock with Premium
Leave-In Molecular Repair Hair Mask
10
10
10
liked
disliked
not rated
Unlock with Premium

When to use

BrioGeo MegaStrength + Protein + Moisture Strengthening Treatment 33 ingredients

K18 Hair Leave-In Molecular Repair Hair Mask 21 ingredients

65 Routines
43% use in am
57% use in pm
55% use every day
When to use See routines that use it ->

Reviews

Here's what our community thinks

BrioGeo MegaStrength + Protein + Moisture Strengthening Treatment 33 ingredients

No reviews yet

Be the first to review MegaStrength + Protein + Moisture Strengthening Treatment

Write the first review

K18 Hair Leave-In Molecular Repair Hair Mask 21 ingredients

4.75
Overall rating
5
4
3
2
1
What people say
Soft 67% Color Care 33%
See all reviews for Leave-In Molecular Repair Hair Mask
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