Missha Super Aqua Ultra Waterful Intensive Serum Versus Kiehl's Vital Skin-Strengthening Hyaluronic Acid Super Serum
This barrier-repair serum is formulated around Niacinamide to strengthen the skin barrier.
This hydrating serum is formulated around Schisandra Chinensis Fruit Extract and Panax Ginseng Root Extract to hydrate skin.
What's inside
What's inside
Key Ingredients
Benefits
Concerns
Ingredients Side-by-side
Water
Skin ConditioningGlycerin
Humectant
Cyclopentasiloxane
Emollient
Butylene Glycol
Humectant
Niacinamide
Smoothing
PEG-8
HumectantCyclohexasiloxane
Emollient
Camellia Japonica Seed Oil
Emollient
Hydrogenated Poly(C6-14 Olefin)
EmollientPentylene Glycol
Skin Conditioning
Dimethicone/Vinyl Dimethicone Crosspolymer
Skin Conditioning
Phenoxyethanol
Preservative
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
Emulsion StabilisingAmmonium Acryloyldimethyltaurate/Vp Copolymer
PEG-60 Hydrogenated Castor Oil
Emulsifying
Tromethamine
BufferingPropanediol
Solvent
Caprylyl Glycol
Emollient
Hydrogenated Lecithin
Emulsifying
Panthenol
Skin Conditioning
Pyrus Malus Fruit Water
MaskingParfum
Masking
Ethylhexylglycerin
Skin ConditioningDisodium EDTA
Anastatica Hierochuntica Extract
AstringentBetula Platyphylla Japonica Juice
Skin Conditioning
Opuntia Ficus-Indica Extract
Skin Conditioning
Pseudoalteromonas Ferment Extract
Humectant
Myrothamnus Flabellifolia Callus Culture Extract
Antioxidant
Opuntia Ficus-Indica Callus Culture Extract
Antioxidant
Rhizophora Mangle Callus Culture Extract
Antioxidant
Salicornia Herbacea Callus Culture Extract
Emollient1,2-Hexanediol
Skin Conditioning
Lactobacillus Ferment
Skin Conditioning
Imperata Cylindrica Root Extract
Skin ConditioningGlyceryl Caprylate
EmollientOpuntia Ficus-Indica Stem Extract
Skin Conditioning
Adansonia Digitata Seed Extract
Skin ConditioningAdenium Obesum Leaf Extract
Skin ConditioningPolyglutamic Acid
Skin Conditioning
Sodium Hyaluronate
Humectant
Water, Glycerin, Cyclopentasiloxane, Butylene Glycol, Niacinamide, PEG-8, Cyclohexasiloxane, Camellia Japonica Seed Oil, Hydrogenated Poly(C6-14 Olefin), Pentylene Glycol, Dimethicone/Vinyl Dimethicone Crosspolymer, Phenoxyethanol, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Ammonium Acryloyldimethyltaurate/Vp Copolymer, PEG-60 Hydrogenated Castor Oil, Tromethamine, Propanediol, Caprylyl Glycol, Hydrogenated Lecithin, Panthenol, Pyrus Malus Fruit Water, Parfum, Ethylhexylglycerin, Disodium EDTA, Anastatica Hierochuntica Extract, Betula Platyphylla Japonica Juice, Opuntia Ficus-Indica Extract, Pseudoalteromonas Ferment Extract, Myrothamnus Flabellifolia Callus Culture Extract, Opuntia Ficus-Indica Callus Culture Extract, Rhizophora Mangle Callus Culture Extract, Salicornia Herbacea Callus Culture Extract, 1,2-Hexanediol, Lactobacillus Ferment, Imperata Cylindrica Root Extract, Glyceryl Caprylate, Opuntia Ficus-Indica Stem Extract, Adansonia Digitata Seed Extract, Adenium Obesum Leaf Extract, Polyglutamic Acid, Sodium Hyaluronate
Water
Skin ConditioningDimethicone
Emollient
Glycerin
Humectant
Alcohol Denat.
Antimicrobial
Hamamelis Virginiana Water
Astringent
Propanediol
Solvent
Phenoxyethanol
Preservative
Tocopherol
Antioxidant
Ammonium Polyacryloyldimethyl Taurate
Emulsion StabilisingSchisandra Chinensis Fruit Extract
Skin Conditioning
Capryloyl Salicylic Acid
Exfoliating
Caprylyl Glycol
Emollient
Xanthan Gum
EmulsifyingPEG-60 Hydrogenated Castor Oil
Emulsifying
Panax Ginseng Root Extract
Emollient
Sodium Acetylated Hyaluronate
Humectant
PEG-20 Methyl Glucose Sesquistearate
Emulsifying
Disodium EDTA
Ocimum Sanctum Leaf Extract
Skin ConditioningCitrus Aurantium Dulcis Peel Oil
Masking
Limonene
Perfuming
Adenosine
Skin Conditioning
Sodium Hydroxide
BufferingMethyldihydrojasmonate
MaskingCitric Acid
Buffering
Eugenol
Perfuming
Sodium Benzoate
Masking
Pelargonium Graveolens Flower Oil
Masking
Citral
Perfuming
Potassium Sorbate
Preservative
Lavandula Angustifolia Oil
Masking
Cymbopogon Schoenanthus Oil
Masking
Citronellol
Perfuming
Linalool
Perfuming
Geraniol
Perfuming
Rosmarinus Officinalis Leaf Oil
Masking
Water, Dimethicone, Glycerin, Alcohol Denat., Hamamelis Virginiana Water, Propanediol, Phenoxyethanol, Tocopherol, Ammonium Polyacryloyldimethyl Taurate, Schisandra Chinensis Fruit Extract, Capryloyl Salicylic Acid, Caprylyl Glycol, Xanthan Gum, PEG-60 Hydrogenated Castor Oil, Panax Ginseng Root Extract, Sodium Acetylated Hyaluronate, PEG-20 Methyl Glucose Sesquistearate, Disodium EDTA, Ocimum Sanctum Leaf Extract, Citrus Aurantium Dulcis Peel Oil, Limonene, Adenosine, Sodium Hydroxide, Methyldihydrojasmonate, Citric Acid, Eugenol, Sodium Benzoate, Pelargonium Graveolens Flower Oil, Citral, Potassium Sorbate, Lavandula Angustifolia Oil, Cymbopogon Schoenanthus Oil, Citronellol, Linalool, Geraniol, Rosmarinus Officinalis Leaf Oil
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Caprylyl Glycol is a humectant, skin conditioner, emollient, and preservative booster derived from either caprylic acid or synthetically created.
Typical use levels vary from 0.3-1% as a preservative booster and go up to 2% to condition skin.
Because it is not a free-fatty acid, this ingredient is fungal acne safe (there's nothing for Malassezia to feed on).
Learn more about Caprylyl GlycolDisodium EDTA is a chelating agent. It grabs onto and deactivates metal ions that sneak into your products from water, packaging, or air.
This ingredient mainly works behind the scenes and helps with:
On top of that, this ingredient can counteract the effects of hard water by binding to the minerals in it.
One thing worth knowing is that Disodium EDTA has been shown to be a mild penetration enhancer. It can help other ingredients absorb into skin more effectively which can be a double-edged sword (great for actives, but can also make the active too strong if you have sensitive skin).
Clinical patch testing showed no significant skin irritation at typical use concentrations and minimal dermal absorption.
You'll most likely see this ingredient near the end of an ingredient list. It's typically found in concentrations less than 1%.
Learn more about Disodium EDTAGlycerin (or glycerol) is a compound naturally found in your skin. It's a powerhouse humectant that pulls water into the stratum corneum.
Topically, glycerin does several things at once:
Your skin makes glycerin on its own (mostly from sebaceous oil breakdown) and shuttles it to your outermost layer of skin, or your epidermis, via aquaporin-3.
Aquaporin-3 is a transporter that is essential for normal skin hydration, elasticity, and repair. Interestingly, mice lacking in AQP3 have dry and less elastic skin that can be fully corrected with glycerin.
This ingredient is non-irritating, plays well with almost every ingredient, and works across all skin types. Typical use is anywhere between 3-10% but can go up to 79% in some leave-on products.
Just know very high concentrations (>40%) can feel tacky in low humidity.
Glycerin is the name for this ingredient in American English. British English uses Glycerol/Glycerine.
Learn more about GlycerinPeg-60 Hydrogenated Castor Oil comes from hydrogenated castor oil. It is a solubilizer and emulsifier.
As a solubilizer, it helps dissolve ingredients into a water-based version. It is also an emulsifer. Emulsifier help prevent oils and water from separating. Both these properties help create evenly-spread and uniform products.
Basically, Peg-60 Hydrogenated Castor Oil helps hold ingredients together.
Learn more about PEG-60 Hydrogenated Castor OilPhenoxyethanol is one of the most widely used preservatives in skincare (and for good reason!).
It has a large spectrum of antimicrobial activity and especially effective bacteria, yeast, and mold while only having a weak effect on your skin's natural microbiome.
On a cellular level, it disrupts the cell membranes of microbes by poking holes that make the cell leak. This shuts down the chemical reactions the microbe needs to make energy so it can no longer survive.
Another perk of this ingredient is that it stays functional across a wide pH range (3-10).
You'll often see it paired with boosters like Ethylhexylglycerin; one study showed that a 1:9 ratio of Ethylhexylglycerin to Phenoxyethanol damages bacterial membranes as effectively as doubling the Phenoxyethanol concentration on its own.
Typical use concentrations range from 0.3-1% depending on the formula, and this ingredient is capped at 1% int the EU.
Safety-wise, the fear mongering does not hold up to the evidence. The EU's Scientific Committee on Consumer Safety and FDA consider it safe as a preservative at up to 1%, including for children of all ages.
Adverse systemic effects only showed up in animal studies at exposures roughly 200x higher than what people get from cosmetics. And despite its very widespread use, this ingredient is a rare sensitizer and allergic reactions are uncommon.
Learn more about PhenoxyethanolPropanediol is an all-star ingredient. It softens, hydrates, and smooths the skin.
It’s often used to:
Propanediol is not likely to cause sensitivity and considered safe to use. It is derived from corn or petroleum with a clear color and no scent.
Learn more about PropanediolWater. 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. Remember to stay hydrated!
Learn more about Water
