K18 Hair Leave-In Molecular Repair Hair Mask Versus Elizavecca Milky Piggy CER-100 Collagen Ceramide Coating Protein Treatment
Updated on February 14, 2025
Overview
What they are
These products are both cruelty-free and reef safe hair masks. They have a total of 8 ingredients in common
Cool Features
They both contain Vitamin E
Suited For
They're both likely to be good for anti aging, dry skin and scar healing
Free From
They both do not contain any oils, parabens or sulfates
What's Inside
They both contain harsh alcohols 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 Leave-In Molecular Repair Hair Mask 21 ingredients
Elizavecca Milky Piggy CER-100 Collagen Ceramide Coating Protein Treatment 46 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 Leave-In Molecular Repair Hair Mask 21 ingredients
Elizavecca Milky Piggy CER-100 Collagen Ceramide Coating Protein Treatment 46 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningAlcohol Denat.
Antimicrobial
Propylene Glycol
Humectant
Cetearyl Alcohol
Emollient
Dicaprylyl Ether
Emollient
Cetyl Esters
Emollient
Behentrimonium Chloride
Preservative
Polysorbate 20
Emulsifying
Sh-Oligopeptide-78
Hydrolyzed Wheat Protein
Skin ConditioningHydrolyzed Wheat Starch
Skin ConditioningIsopropyl Alcohol
Solvent
Tocopherol
Antioxidant
Phenoxyethanol
Preservative
Potassium Sorbate
Preservative
Citric Acid
Buffering
Parfum
Masking
Geraniol
Perfuming
Linalool
Perfuming
Hexyl Cinnamal
Perfuming
Benzyl Alcohol
Perfuming
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
Water
Skin ConditioningCetearyl Alcohol
Emollient
Behentrimonium Chloride
Preservative
Glycerin
Humectant
Amodimethicone
Cyclopentasiloxane
Emollient
Citric Acid
Buffering
Isopropyl Alcohol
Solvent
Cetrimonium Chloride
Antimicrobial
Sodium Benzoate
Masking
Dimethicone
Emollient
Trideceth-12
EmulsifyingPanthenol
Skin Conditioning
Parfum
Masking
Tocopheryl Acetate
Antioxidant
Caramel
Cosmetic ColorantButylene Glycol
Humectant
Cornus Officinalis Fruit Extract
Skin ConditioningRehmannia Glutinosa Root Extract
Skin ConditioningDioscorea Japonica Root Extract
Skin ConditioningAlisma Orientale Tuber Extract
Skin ConditioningPaeonia Suffruticosa Root Extract
Skin ProtectingPoria Cocos Sclerotium Extract
AstringentCeramide NP
Skin Conditioning
Alcohol
Antimicrobial
Hydrolyzed Silk
Humectant
Hydrolyzed Collagen
Emollient
Gelatin
Hydrolyzed Keratin
Humectant
Avena Sativa Kernel Extract
Abrasive
1,2-Hexanediol
Skin Conditioning
Hydrolyzed Wheat Protein
Skin ConditioningHydrolyzed Corn Protein
Skin ConditioningHydrolyzed Soy Protein
Humectant
Phenoxyethanol
Preservative
Daucus Carota Sativa Root Extract
Skin Conditioning
Brassica Oleracea Italica Extract
AstringentApium Graveolens Extract
Skin ConditioningSodium Dehydroacetate
Preservative
Brassica Oleracea Capitata Juice
Skin ConditioningOryza Sativa Extract
Absorbent
Brassica Rapa Leaf Extract
Skin ConditioningEthylhexylglycerin
Skin ConditioningSolanum Lycopersicum Fruit
EmollientIllicium Verum Fruit Extract
Perfuming
Caprylyl Glycol
EmollientWater, Cetearyl Alcohol, Behentrimonium Chloride, Glycerin, Amodimethicone, Cyclopentasiloxane, Citric Acid, Isopropyl Alcohol, Cetrimonium Chloride, Sodium Benzoate, Dimethicone, Trideceth-12, Panthenol, Parfum, Tocopheryl Acetate, Caramel, Butylene Glycol, Cornus Officinalis Fruit Extract, Rehmannia Glutinosa Root Extract, Dioscorea Japonica Root Extract, Alisma Orientale Tuber Extract, Paeonia Suffruticosa Root Extract, Poria Cocos Sclerotium Extract, Ceramide NP, Alcohol, Hydrolyzed Silk, Hydrolyzed Collagen, Gelatin, Hydrolyzed Keratin, Avena Sativa Kernel Extract, 1,2-Hexanediol, Hydrolyzed Wheat Protein, Hydrolyzed Corn Protein, Hydrolyzed Soy Protein, Phenoxyethanol, Daucus Carota Sativa Root Extract, Brassica Oleracea Italica Extract, Apium Graveolens Extract, Sodium Dehydroacetate, Brassica Oleracea Capitata Juice, Oryza Sativa Extract, Brassica Rapa Leaf Extract, Ethylhexylglycerin, Solanum Lycopersicum Fruit, Illicium Verum Fruit Extract, Caprylyl Glycol
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
This ingredient is a preservative and often used for it's anti-static properties. You'll most likely see this ingredient in hair conditioners.
It does not cause irritation or sensitization in leave-on products at 1-5%.
Cetearyl alcohol is a mixture of two fatty alcohols: cetyl alcohol and stearyl alcohol. It is mainly used as an emulsifier. Emulsifiers help prevent the separation of oils and products. Due to its composition, it can also be used to thicken a product or help create foam.
Cetearyl alcohol is an emollient. Emollients help soothe and hydrate the skin by trapping moisture.
Studies show Cetearyl alcohol is non-toxic and non-irritating. The FDA allows products labeled "alcohol-free" to have fatty alcohols.
This ingredient is usually derived from plant oils such as palm, vegetable, or coconut oils. There is debate on whether this ingredient will cause acne.
Due to the fatty acid base, this ingredient may not be Malassezia folliculitis safe.
Learn more about Cetearyl AlcoholCitric Acid is an AHA derived from citrus fruits (think oranges, lemons, and limes!).
As an AHA, Citric Acid removes the top layer of skin cells from the newer layer of skin underneath. This helps skin to remove dark spots and even out skin tone.
If you spot Citric Acid near the end of an ingredient list, it's likely there as a pH adjuster rather than an active ingredient.
Read more about some other popular AHA's here:
Learn more about Citric AcidWe don't have a description for Hydrolyzed Wheat Protein yet.
Isopropyl Alcohol is more commonly known as rubbing alcohol. It is most commonly used as a solvent, meaning it helps other ingredients dissolve.
This ingredient is an astringent alcohol. Astringent alcohols may also irritate skin as they high amounts may strip away your skin's natural oils.
Other types of astringent alcohols include:
According to the National Rosacea Society based in the US, you should be mindful of products with these alcohols in the top half of ingredients.
Any type of sanitizing product will have high amounts of alcohol to help kill bacteria and viruses.
Learn more about Isopropyl AlcoholParfum is a catch-all term for an ingredient or more that is used to give a scent to products.
Also called "fragrance", this ingredient can be a blend of hundreds of chemicals or plant oils. This means every product with "fragrance" or "parfum" in the ingredients list is a different mixture.
For instance, Habanolide is a proprietary trade name for a specific aroma chemical. When used as a fragrance ingredient in cosmetics, most aroma chemicals fall under the broad labeling category of “FRAGRANCE” or “PARFUM” according to EU and US regulations.
The term 'parfum' or 'fragrance' is not regulated in many countries. In many cases, it is up to the brand to define this term.
For instance, many brands choose to label themselves as "fragrance-free" because they are not using synthetic fragrances. However, their products may still contain ingredients such as essential oils that are considered a fragrance by INCI standards.
One example is Calendula flower extract. Calendula is an essential oil that still imparts a scent or 'fragrance'.
Depending on the blend, the ingredients in the mixture can cause allergies and sensitivities on the skin. Some ingredients that are known EU allergens include linalool and citronellol.
Parfum can also be used to mask or cover an unpleasant scent.
The bottom line is: not all fragrances/parfum/ingredients are created equally. If you are worried about fragrances, we recommend taking a closer look at an ingredient. And of course, we always recommend speaking with a professional.
Learn more about ParfumPhenoxyethanol is a preservative that has germicide, antimicrobial, and aromatic properties. Studies show that phenoxyethanol can prevent microbial growth. By itself, it has a scent that is similar to that of a rose.
It's often used in formulations along with Caprylyl Glycol to preserve the shelf life of products.
Water. It's the most common cosmetic ingredient of all. You'll usually see it at the top of ingredient lists, meaning that it makes up the largest part of the product.
So why is it so popular? Water most often acts as a solvent - this means that it helps dissolve other ingredients into the formulation.
You'll also recognize water as that liquid we all need to stay alive. If you see this, drink a glass of water. Stay hydrated!
Learn more about WaterIngredient Ratings
Here's what our community thinks of the ingredients in these products.
When to use
K18 Hair Leave-In Molecular Repair Hair Mask 21 ingredients
Elizavecca Milky Piggy CER-100 Collagen Ceramide Coating Protein Treatment 46 ingredients
Reviews
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