Overview
What they are
These products are both reef safe . They have a total of 1 ingredients in common
Cool Features
They both contain hyaluronic acid
Suited For
They're both likely to be good for anti aging, dry skin, brightening skin, scar healing and dark spots
Free From
They both do not contain any parabens or sulfates
What's Inside
They both contain fragrances, oils and silicones
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
Tatcha Luminous Dewy Skin Sheet Mask 25 ingredients
Kiehl's Powerful-Strength Vitamin C Serum 21 ingredients
At a glance
Click on any of the items below to learn more
Tatcha Luminous Dewy Skin Sheet Mask 25 ingredients
Kiehl's Powerful-Strength Vitamin C Serum 21 ingredients
Benefits
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Concerns
Notable Ingredients
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Benefits
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Concerns
This product contains 1 ingredient that may have this attribute:
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Ingredients Side-by-side
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.
Helps with Anti-Aging
Camellia Sinensis Leaf is the leaf of the tea plant. These leaves are used to make white, oolong, green, and black tea.
Propanediol helps absorb ingredients into your skin, boosting their benefits. It can act as an emollient, making your skin softer. Propanediol can help products last longer by boosting the properties of preservatives within the formulation.
Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.
Pentaerythrityl Tetraisostearate is derived from isostearic acid. It is an emollient and emulsifier.
Squalane is an emollient that helps the skin hold onto moisture. It's an oily liquid that occurs naturally in certain types of fish and plant oils.
Not safe for Fungal Acne
Camellia Japonica Seed Oil comes from the Japanese Camellia plant. This plant is native to East Asia and known as "Tsubaki" in Japanese.
Not safe for Fungal Acne
Oryza Sativa Germ Oil is an oil expressed from the germs of rice kernels.
Chondrus Crispus Extract comes from a red algae native to the northern Atlantic coasts of Europe and North America.
Glycyrrhiza Glabra Root Extract is an extract of the roots of Licorice. It has been found to have several benefits such as skin hydrating, conditioning, and soothing.
Panax Ginseng Root is a popular herb from Asia. This root contains antioxidants, favonoids, and vitamins B12 and D.
Royal Jelly Extract comes from a secretion made by worker honeybees. This secretion is white and described as creamy.
Scutellaria Baicalensis Root Extract comes from the Baikal skullcap or Chinese skullcap plant. This plant is native to Northeast Asia and can be found in China, Mongolia, Korea, and Siberia.
Sodium Hyaluronate is hyaluronic acid's salt form. It is commonly derived from the sodium salt of hyaluronic acid.
We don't have a description for Ammonium Acryloyldimethyltaurate/Carboxyethyl Acrylate Crosspolymer.
Polyglyceryl-10 Laurate is an ester of lauric acid and Polyglycerin-10.
Ethylhexylglycerin (we can't pronounce this either) is commonly used as a preservative and skin softener. It is derived from glyceryl.
Disodium EDTA plays a role in making products more stable by aiding other preservatives.
2 Concerns
Parfum is a catch-all term for an ingredient or more that is used to give a scent to products.
5 Concerns
Alcohol comes in many different forms. Different types of alcohol will have different effects on skin. This ingredient is usually an astringent alcohol.
Phenoxyethanol 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.
Water, Camellia Sinensis Leaf, Propanediol, Glycerin, Pentaerythrityl Tetraisostearate, Diphenylsiloxy Phenyl Trimethicone, Squalane, Camellia Japonica Seed Oil, Sericin, Oryza Sativa Germ Oil, Chondrus Crispus Extract, Glycyrrhiza Glabra Root Extract, Panax Ginseng Root Extract, Royal Jelly Extract, Thymus Serpyllum Extract, Ziziphus Jujuba Leaf Extract, Scutellaria Baicalensis Root Extract, Sodium Hyaluronate, Ammonium Acryloyldimethyltaurate/Carboxyethyl Acrylate Crosspolymer, Polyglyceryl-10 Laurate, Ethylhexylglycerin, Disodium EDTA, Parfum, Alcohol, Phenoxyethanol
Propylene Glycol is an odorless, colorless liquid. As a humectant, it helps skin retain moisture. It also aids in delivering active ingredients.
Dimethicone is a silicone used for making products smooth and silky. It also has the added benefit of sealing in hydration. The amount of dimethicone found in beauty products is considered safe and non-comedogenic, meaning it won't clog pores.
Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.
Antioxidant 6 Benefits
Ascorbic Acid is is pure Vitamin C. This form makes up the largest amount of vitamin C found naturally in our skin.
Ethylhexyl Palmitate is created from 2-ethylhexyl alcohol and palmitic acid. It is a fatty acid ester.
This ingredient is a high molecular weight silicone. It has emulsifying and skin conditioning properties.
Dimethicone Crosspolymer is a silicone created by modifying dimethicone with hydrocarbon side chains. Due to its large size, it does not penetrate skin. It is considered non-occlusive.
Antioxidant 6 Benefits
Ascorbyl Glucoside is a stable form of Vitamin C. It is created by combining glucose from starch.
Cyclohexasiloxane is a type of silicone more commonly known as D6. It is an emollient and solvent.
This ingredient comes from a fatty acid (lauric acid) and amino acid (lysine). It is used to add a silky feel to cosmetics.
We don't have a description for Acrylonitrile/Methyl Methacrylate/Vinylidene Chloride Copolymer.
Adenosine is in every living organism. It is one of four components in nucleic acids that helps store our DNA.
Hydrolyzed Hyaluronic Acid is a form of hyaluronic acid. It is created by the hydrolysis of hyaluronic acid with a high molecular weight. Once created, Hydrolyzed Hyaluronic Acid has a low molecular weight.
Limonene is a fragrance that adds scent and taste to a formulation.
Citrus Aurantium Dulcis Peel Oil is oil from the peel of an orange fruit.
Oil EU Allergen
Citrus Limon Peel Oil is created from the peels of the lemon. It is used to add a lemon-scent to products. Lemon peel oil also has antibacterial, antifungal, and antioxidant properties. However, it may also cause phototoxicity and sensitize skin.
EU Allergen
Citral is a fragrance and used to add a lemon-like scent to products. It is both naturally found in plants and created synthetically. In plants, it is commonly occurring in lemon myrtle, lemongrass, lemon tea-tree, lemon verbena, and other citruses.
Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate (long name, huh?) is a synthetic antioxidant.
Propylene Glycol, Dimethicone, Glycerin, Ascorbic Acid, Ethylhexyl Palmitate, Cetyl Peg/Ppg-10/1 Dimethicone, Dimethicone Crosspolymer, Ascorbyl Glucoside, Cyclohexasiloxane, Hydroxyethylpiperazine Ethane Sulfonic Acid, Lauroyl Lysine, Acrylonitrile/Methyl Methacrylate/Vinylidene Chloride Copolymer, Polysilicone-11, Adenosine, Hydrolyzed Hyaluronic Acid, Limonene, Isobutane, Citrus Aurantium Dulcis Peel Oil, Citrus Limon Peel Oil, Citral, Pentaerythrityl Tetra-Di-T-Butyl Hydroxyhydrocinnamate
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Glycerin is already naturally found in your skin. It helps moisturize and protect your skin.
A study from 2016 found glycerin to be more effective as a humectant than AHAs and hyaluronic acid.
As a humectant, it helps the skin stay hydrated by pulling moisture to your skin. The low molecular weight of glycerin allows it to pull moisture into the deeper layers of your skin.
Hydrated skin improves your skin barrier; Your skin barrier helps protect against irritants and bacteria.
Glycerin has also been found to have antimicrobial and antiviral properties. Due to these properties, glycerin is often used in wound and burn treatments.
In cosmetics, glycerin is usually derived from plants such as soybean or palm. However, it can also be sourced from animals, such as tallow or animal fat.
This ingredient is organic, colorless, odorless, and non-toxic.
Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.
Learn more about GlycerinIngredient Ratings
Here's what our community thinks of the ingredients in these two products.
When to use
Tatcha Luminous Dewy Skin Sheet Mask 25 ingredients
Kiehl's Powerful-Strength Vitamin C Serum 21 ingredients
Reviews
Here's what our community thinks
Tatcha Luminous Dewy Skin Sheet Mask 25 ingredients
Y
Almost worth the price
This is so expensive, but I love it as a gift. There's more serum with it than needed, so I always save the pack and it...
Almost worth the price
This is so expensive, but I love it as a gift. There's more serum with it than needed, so I always save the pack and it lasts me over a week. My skin soaks this up, it makes my skin less dry and irritated. Get it if you find it on sale
