La Prairie Skin Caviar Harmony L’Extrait Serum Versus Tatcha The Silk Serum
Updated on February 12, 2025
Overview
What they are
These products are both cruelty-free and reef safe serums. They have a total of 11 ingredients in common
Cool Features
They both contain exfoliants
Suited For
They're both likely to be good for dry skin, brightening skin, sensitive skin and scar healing
Free From
They both do not contain any parabens, silicones or sulfates
What's Inside
They both contain common allergens, fragrances and oils
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
La Prairie Skin Caviar Harmony L’Extrait Serum 48 ingredients
Tatcha The Silk Serum 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
La Prairie Skin Caviar Harmony L’Extrait Serum 48 ingredients
Tatcha The Silk Serum 46 ingredients
Key Ingredients
Benefits
Concerns
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningGlycerin
Humectant
Caprylic/Capric Triglyceride
Masking
Isopentyldiol
Humectant
1,2-Hexanediol
Skin Conditioning
Algin
Masking
Glycoproteins
Skin Conditioning
Panax Ginseng Root Extract
Emollient
Equisetum Arvense Extract
AstringentSaccharomyces Cerevisiae Extract
Skin ConditioningLactobacillus Ferment
Skin ConditioningCaviar Extract
Skin ConditioningCaviar Oil
Emollient
Laminaria Japonica Extract
Skin Protecting
Paeonia Albiflora Root Extract
Skin ConditioningRosa Rugosa Leaf Extract
HumectantLycium Barbarum Fruit Extract
Astringent
Avena Sativa Kernel Extract
Abrasive
Bacillus Ferment
Skin Conditioning
Glycine
Buffering
Mannose
HumectantSodium Mannose Phosphate
HumectantSodium Hyaluronate
Humectant
Carrageenan
Alcaligenes Polysaccharides
EmollientHydrolyzed Sclerotium Gum
HumectantXanthan Gum
EmulsifyingPropylene Glycol
Humectant
Polyglyceryl-3 Polyricinoleate
Emulsifying
Caprylyl Glycol
EmollientEthylhexylglycerin
Skin ConditioningGalactaric Acid
Sodium Chloride
Masking
Calcium Chloride
AstringentSodium Citrate
BufferingCitric Acid
Buffering
Sodium Hydroxide
BufferingSd Alcohol 40-B
Astringent
Parfum
Masking
Linalool
Perfuming
Citronellol
Perfuming
Geraniol
Perfuming
Limonene
Perfuming
Alpha-Isomethyl Ionone
Perfuming
Benzyl Salicylate
Perfuming
Phenoxyethanol
Preservative
Sodium Dehydroacetate
Preservative
Potassium Sorbate
Preservative
Water, Glycerin, Caprylic/Capric Triglyceride, Isopentyldiol, 1,2-Hexanediol, Algin, Glycoproteins, Panax Ginseng Root Extract, Equisetum Arvense Extract, Saccharomyces Cerevisiae Extract, Lactobacillus Ferment, Caviar Extract, Caviar Oil, Laminaria Japonica Extract, Paeonia Albiflora Root Extract, Rosa Rugosa Leaf Extract, Lycium Barbarum Fruit Extract, Avena Sativa Kernel Extract, Bacillus Ferment, Glycine, Mannose, Sodium Mannose Phosphate, Sodium Hyaluronate, Carrageenan, Alcaligenes Polysaccharides, Hydrolyzed Sclerotium Gum, Xanthan Gum, Propylene Glycol, Polyglyceryl-3 Polyricinoleate, Caprylyl Glycol, Ethylhexylglycerin, Galactaric Acid, Sodium Chloride, Calcium Chloride, Sodium Citrate, Citric Acid, Sodium Hydroxide, Sd Alcohol 40-B, Parfum, Linalool, Citronellol, Geraniol, Limonene, Alpha-Isomethyl Ionone, Benzyl Salicylate, Phenoxyethanol, Sodium Dehydroacetate, Potassium Sorbate
Water
Skin ConditioningSaccharomyces/Rice Ferment Filtrate
Skin Conditioning
Glycerin
Humectant
Betaine
Humectant
Pentylene Glycol
Skin ConditioningCaprylic/Capric Triglyceride
Masking
Propanediol
Solvent
Vaccinium Macrocarpon Fruit Extract
AstringentCrithmum Maritimum Extract
Skin ConditioningCamellia Sinensis Leaf Extract
Antimicrobial
Cladosiphon Okamuranus Extract
Skin ConditioningSqualane
Emollient
Sericin
Skin ConditioningMorus Alba Leaf Extract
Skin ConditioningHydrolyzed Silk
Humectant
Carthamus Tinctorius Seed Oil
Masking
Tetrapeptide-4
Skin Conditioning
Polyglyceryl-10 Stearate
Skin Conditioning
Diglucosyl Gallic Acid
Helianthus Annuus Seed Oil
Emollient
Hydrolyzed Conchiolin Protein
Skin ConditioningCaprylyl Glycol
EmollientAcrylates/C10-30 Alkyl Acrylate Crosspolymer
Emulsion StabilisingPrunus Amygdalus Dulcis Oil
Skin Conditioning
Citrus Aurantium Bergamia Fruit Oil
Masking
Citrus Limon Peel Oil
Masking
Citrus Latifolia Peel Oil
Masking
Lavandula Angustifolia Oil
Masking
Ocimum Basilicum Oil
Masking
Eucalyptus Globulus Leaf Oil
Perfuming
Juniperus Virginiana Oil
Masking
Amyris Balsamifera Bark Oil
Masking
1,2-Hexanediol
Skin Conditioning
Butylene Glycol
Humectant
Sodium Citrate
BufferingCitric Acid
Buffering
Disodium EDTA
Potassium Hydroxide
BufferingSynthetic Fluorphlogopite
Tin Oxide
Abrasive
Citral
Perfuming
Limonene
Perfuming
Linalool
Perfuming
Ethylhexylglycerin
Skin ConditioningPhenoxyethanol
Preservative
CI 77891
Cosmetic ColorantWater, Saccharomyces/Rice Ferment Filtrate, Glycerin, Betaine, Pentylene Glycol, Caprylic/Capric Triglyceride, Propanediol, Vaccinium Macrocarpon Fruit Extract, Crithmum Maritimum Extract, Camellia Sinensis Leaf Extract, Cladosiphon Okamuranus Extract, Squalane, Sericin, Morus Alba Leaf Extract, Hydrolyzed Silk, Carthamus Tinctorius Seed Oil, Tetrapeptide-4, Polyglyceryl-10 Stearate, Diglucosyl Gallic Acid, Helianthus Annuus Seed Oil, Hydrolyzed Conchiolin Protein, Caprylyl Glycol, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Prunus Amygdalus Dulcis Oil, Citrus Aurantium Bergamia Fruit Oil, Citrus Limon Peel Oil, Citrus Latifolia Peel Oil, Lavandula Angustifolia Oil, Ocimum Basilicum Oil, Eucalyptus Globulus Leaf Oil, Juniperus Virginiana Oil, Amyris Balsamifera Bark Oil, 1,2-Hexanediol, Butylene Glycol, Sodium Citrate, Citric Acid, Disodium EDTA, Potassium Hydroxide, Synthetic Fluorphlogopite, Tin Oxide, Citral, Limonene, Linalool, Ethylhexylglycerin, Phenoxyethanol, CI 77891
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
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 WaterGlycerin 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 GlycerinThis ingredient is an emollient, solvent, and texture enhancer. It is considered a skin-softener by helping the skin prevent moisture loss.
It helps thicken a product's formula and makes it easier to spread by dissolving clumping compounds.
Caprylic Triglyceride is made by combining glycerin with coconut oil, forming a clear liquid.
While there is an assumption Caprylic Triglyceride can clog pores due to it being derived from coconut oil, there is no research supporting this.
Learn more about Caprylic/Capric Triglyceride1,2-Hexanediol is a synthetic liquid and another multi-functional powerhouse.
It is a:
- Humectant, drawing moisture into the skin
- Emollient, helping to soften skin
- Solvent, dispersing and stabilizing formulas
- Preservative booster, enhancing the antimicrobial activity of other preservatives
Caprylyl Glycol is a humectant and emollient, meaning it attracts and preserves moisture.
It is a common ingredient in many products, especially those designed to hydrate skin. The primary benefits are retaining moisture, skin softening, and promoting a healthy skin barrier.
Though Caprylyl Glycol is an alcohol derived from fatty acids, it is not the kind that can dry out skin.
This ingredient is also used as a preservative to extend the life of products. It has slight antimicrobial properties.
Learn more about Caprylyl GlycolEthylhexylglycerin (we can't pronounce this either) is commonly used as a preservative and skin softener. It is derived from glyceryl.
You might see Ethylhexylglycerin often paired with other preservatives such as phenoxyethanol. Ethylhexylglycerin has been found to increase the effectiveness of these other preservatives.
Sodium Citrate is the sodium salts of citric acid. In skincare, it is used to alter pH levels and acts as a preservative.
Its main functions are to maintain the pH of a product and neutralize metal ions.
The acidity of our skin is maintained by our glands and skin biome; normal pH level of skin is slightly acidic (~4.75-5.5).
Being slightly acidic allows our skin to create an "acid mantle". This acid mantle is a thin barrier that protects our skin from bacteria and contaminants.
Learn more about Sodium CitrateCitric 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 AcidLinalool is a fragrance and helps add scent to products. It's derived from common plants such as cinnamon, mint, citrus, and lavender.
Like Limonene, this ingredient oxidizes when exposed to air. Oxidized linalool can cause allergies and skin sensitivity.
This ingredient has a scent that is floral, spicy tropical, and citrus-like.
Learn more about LinaloolLimonene is a fragrance that adds scent and taste to a formulation.
It's found in the peel oil of citrus fruits and other plants such as lavender and eucalyptus. The scent of limonene is generally described as "sweet citrus".
Limonene acts as an antioxidant, meaning it helps neutralize free radicals.
When exposed to air, oxidized limonene may sensitize the skin. Because of this, limonene is often avoided by people with sensitive skin.
The term '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.
Learn more about LimonenePhenoxyethanol 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.
Ingredient Ratings
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When to use
La Prairie Skin Caviar Harmony L’Extrait Serum 48 ingredients
Tatcha The Silk Serum 46 ingredients
