What's inside
What's inside
Key Ingredients
Benefits
Concerns
No concerns
Ingredients Side-by-side
Onsen-Sui
Water
Skin ConditioningGlycerin
HumectantPropanediol
Solvent1,2-Hexanediol
Skin ConditioningCaprylic/Capric Triglyceride
MaskingPentylene Glycol
Skin ConditioningGlyceryl Acrylate/Acrylic Acid Copolymer
HumectantPanthenol
Skin ConditioningChondrus Crispus Extract
Skin ConditioningAcrylates/C10-30 Alkyl Acrylate Crosspolymer
Emulsion StabilisingSodium Lauroyl Lactylate
EmulsifyingHydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Emulsion StabilisingSaccharum Officinarum Extract
MoisturisingTromethamine
BufferingCaprylyl Glycol
EmollientSodium Hyaluronate
HumectantAdenosine
Skin ConditioningAllantoin
Skin ConditioningEthylhexylglycerin
Skin ConditioningHyaluronic Acid
HumectantCeramide NP
Skin ConditioningPlumeria Alba Flower Oil
Sodium Phytate
Ceramide AP
Skin ConditioningPhytosphingosine
Skin ConditioningCholesterol
EmollientXanthan Gum
EmulsifyingHydrolyzed Hyaluronic Acid
HumectantCarbomer
Emulsion StabilisingHydroxypropyltrimonium Hyaluronate
Hydrolyzed Sodium Hyaluronate
Skin ConditioningSodium Acetylated Hyaluronate
HumectantPotassium Hyaluronate
Skin ConditioningCeramide EOP
Skin ConditioningTocopherol
AntioxidantDimethylsilanol Hyaluronate
HumectantSodium Benzoate
MaskingOnsen-Sui, Water, Glycerin, Propanediol, 1,2-Hexanediol, Caprylic/Capric Triglyceride, Pentylene Glycol, Glyceryl Acrylate/Acrylic Acid Copolymer, Panthenol, Chondrus Crispus Extract, Acrylates/C10-30 Alkyl Acrylate Crosspolymer, Sodium Lauroyl Lactylate, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Saccharum Officinarum Extract, Tromethamine, Caprylyl Glycol, Sodium Hyaluronate, Adenosine, Allantoin, Ethylhexylglycerin, Hyaluronic Acid, Ceramide NP, Plumeria Alba Flower Oil, Sodium Phytate, Ceramide AP, Phytosphingosine, Cholesterol, Xanthan Gum, Hydrolyzed Hyaluronic Acid, Carbomer, Hydroxypropyltrimonium Hyaluronate, Hydrolyzed Sodium Hyaluronate, Sodium Acetylated Hyaluronate, Potassium Hyaluronate, Ceramide EOP, Tocopherol, Dimethylsilanol Hyaluronate, Sodium Benzoate
Water
Skin ConditioningIsopentyldiol
HumectantNiacinamide
SmoothingSqualane
EmollientPropanediol
SolventGlycerin
HumectantPanthenol
Skin ConditioningPyrus Malus Fruit Extract
Skin ConditioningHydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer
Emulsion StabilisingTriolein
Skin ConditioningC13-14 Alkane
SolventSodium Polyacryloyldimethyl Taurate
Emulsion StabilisingC15-23 Alkane
SolventDecyl Glucoside
CleansingCeramide NP
Skin ConditioningGlyceryl Dioleate
EmollientEthylhexylglycerin
Skin ConditioningPotassium Sorbate
PreservativeAllantoin
Skin ConditioningTocopherol
AntioxidantPentylene Glycol
Skin ConditioningCitric Acid
BufferingSodium Phytate
Sodium Acetylated Hyaluronate
HumectantSodium Hyaluronate
HumectantSodium Hyaluronate Crosspolymer
HumectantHydrolyzed Sodium Hyaluronate
Skin ConditioningWater, Isopentyldiol, Niacinamide, Squalane, Propanediol, Glycerin, Panthenol, Pyrus Malus Fruit Extract, Hydroxyethyl Acrylate/Sodium Acryloyldimethyl Taurate Copolymer, Triolein, C13-14 Alkane, Sodium Polyacryloyldimethyl Taurate, C15-23 Alkane, Decyl Glucoside, Ceramide NP, Glyceryl Dioleate, Ethylhexylglycerin, Potassium Sorbate, Allantoin, Tocopherol, Pentylene Glycol, Citric Acid, Sodium Phytate, Sodium Acetylated Hyaluronate, Sodium Hyaluronate, Sodium Hyaluronate Crosspolymer, Hydrolyzed Sodium Hyaluronate
Reviews
Ingredients Explained
These ingredients are found in both products.
Ingredients higher up in an ingredient list are typically present in a larger amount.
Allantoin is a soothing ingredient known for its protective and moisturizing properties; it's basically a quiet workhorse ingredient you can find in a huge range of cosmetics.
Though it can be derived from the comfrey plant, allantoin is produced synthetically for cosmetic products to ensure purity.
Research shows it can encourage your skin cells to turn over and renew by stimulating keratinocyte and fibroblast proliferation.
It also has mild keratolytic properties to help loosen and shed dead skin cells without being harsh.
Studies also suggest allantoin can help calm inflammation by dialing down some of the chemical signals your skin sends out when it is irritated.
This ingredient is typically used in the 0.1-0.5% range, and the FDA recognizes it as a skin protectant in OTC products up to 2%.
Overall, allantoin is a wonderful addition to most routines; it is stable across a wide pH range (~4-8), works well with other ingredients, and is considered non-sensitizing/non-irritating.
Fun fact: Allantoin is naturally occurring in comfrey root, beets, chamomile, and wheat sprouts. Our bodies even produce it as a byproduct of uric acid metabolism.
Learn more about AllantoinCeramide NP (formerly known as Ceramide 3) is one of the skin's naturally occurring lipids.
Since ceramides are the major lipid components of the skin, they are crucial for maintaining skin barrier and hydration. Ceramide NP most closely mirrors the dominant kind in human skin amongst ceramide subtypes.
This ceramide works by slotting into gaps within the stratum corneum's lipid matrix to limit trans-epidermal water loss (TEWL) and shield the skin against external irritants.
A study with 312 patients found that using a ceramide-containing routine for 4 weeks reduced the severity of atopic dermatitis by over 61%.
Another clinical study in subjects aged 60 and older found that a ceramide body wash and moisturizer improved skin dryness and itchy skin in 15 days.
Overall, ceramides are considered non-irritating and safety tests have found little to no observable adverse effects from using this ingredient.
Ceramide NP is usually sourced from plants (like soybean or rice bran), or produced synthetically.
Learn more about Ceramide NPEthylhexylglycerin is created from glycerin. It is a multitasker ingredient that:
The CIR Expert Panel found minimal skin absorption or sensitization of any kind in a safety assessment. Though this ingredient is considered well-tolerated, a small number of cases of allergic dermatitis have been published since 2002. Just be sure to patch test if you are unsure.
Industry-reported use ranges from 8% in rinse-off products and 2% in leave-on formulations.
Learn more about EthylhexylglycerinGlycerin (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 GlycerinThis ingredient is created by putting sodium hyaluronate through hydrolysis.
You might know this as 'mini' or 'ultra low-molecular weight' hyaluronic acid. The small molecule size means it is able to travel deeper in the skin.
According to studies, low molecular-weight hyaluronic acid can:
One study from 2011 found ultra-low weight HA to show pro-inflammatory properties. Another study from 2022 found it to downregulate UV-B induced inflammation.
Hydrolysis is a process of changing a molecule using water or enzymes.
This ingredient is water-soluble.
Learn more about Hydrolyzed Sodium HyaluronateThis is a synthetic polymer. It helps improve the texture of products by adding thickness and gel-like feel.
It is also an emulsifer, meaning it prevents ingredients such as oil and water from separating. It also helps evenly disperse other ingredients.
Panthenol is a common ingredient that helps hydrate and soothe the skin. It is found naturally in our skin and hair.
There are two forms of panthenol: D and L.
D-panthenol is also known as dexpanthenol. Most cosmetics use dexpanthenol or a mixture of D and L-panthenol.
Panthenol is famous due to its ability to go deeper into the skin's layers. Using this ingredient has numerous pros (and no cons):
Like hyaluronic acid, panthenol is a humectant. Humectants are able to bind and hold large amounts of water to keep skin hydrated.
This ingredient works well for wound healing. It works by increasing tissue in the wound and helps close open wounds.
Once oxidized, panthenol converts to pantothenic acid. Panthothenic acid is found in all living cells.
This ingredient is also referred to as pro-vitamin B5.
Learn more about PanthenolPentylene glycol is typically used within a product to thicken it. It also adds a smooth, soft, and moisturizing feel to the product. It is naturally found in plants such as sugar beets.
The hydrophilic trait of Pentylene Glycol makes it a humectant. As a humectant, Pentylene Glycol helps draw moisture from the air to your skin. This can help keep your skin hydrated.
This property also makes Pentylene Glycol a great texture enhancer. It can also help thicken or stabilize a product.
Pentylene Glycol also acts as a mild preservative and helps to keep a product microbe-free.
Some people may experience mild eye and skin irritation from Pentylene Glycol. We always recommend speaking with a professional about using this ingredient in your routine.
Pentylene Glycol has a low molecular weight and is part of the 1,2-glycol family.
Learn more about Pentylene GlycolPropanediol 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 PropanediolSodium Acetylated Hyaluronate is a type of Hyaluronic Acid.
Hyaluronic Acids help moisturize, soothe, and protect the skin.
Read about common types of Hyaluronic Acid here:
Learn more about Sodium Acetylated HyaluronateSodium Hyaluronate is the salt form of hyaluronic acid. It is a long sugar chain that is naturally found in your skin, joints, and connective tissue that maintains hydration and elasticity.
In skincare, it works as a humectant. It pulls water from the environment and deeper layers of skin and binds it to the surface.
Interestingly, the size of the molecule affects its behavior:
Some clinical evidence links low molecular weight versions to improved wrinkle depth, elasticity, anti-inflammatory effects, and barrier repair.
Many serums use a blend of both weights so you can get surface hydration plus longer-lasting and deeper effects.
You'll typically see concentrations between 0.1-2% for this ingredient.
Learn more about Sodium HyaluronateSodium Phytate is the synthetic salt form of phytic acid. Phytic acid is an antioxidant and can be found in plant seeds.
Sodium Phytate is a chelating agent. Chelating agents help prevent metals from binding to water. This helps stabilize the ingredients and the product.
Tocopherol is a fat-soluble antioxidant known as Vitamin E.
You'll find this ingredient in the vast majority of skincare (for good reason). It works to neutralize free radicals, or unstable molecules generated by UV exposure, pollution, and other environmental stressors, before they can cause oxidative damage to your skin cells.
Topically applied tocopherol has been shown to protect against UV damage by ramping up the skin's own natural defense enzymes.
It also acts as a skin conditioning agent; some studies show that regular topical use can improve the skin's water-binding capacity over 2-4 weeks.
This ingredient is especially loved for being a team player. When combined with Vitamin C, the photoprotective effect of both ingredients roughly doubles and the combo also helps reduce UV-induced DNA damage.
This ingredient has some brightening potential but it's more of a prevention ingredient than spot-fader. Cell studies show it can slow down melanin production but it's worth noting that it's not the most powerful brightener out there.
In formulations, it also serves as a stabilizer that helps protect other oxidation-prone ingredients from degrading.
Concentrations usually range from 0.1-1% in most leave-on products.
Learn more about TocopherolWater. 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